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1095A/C Operation Manual

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1. 1095 Utility Application File Unit Settings Help faa 4B x System Communication Time IRIG Prog Pulse A Prog Pulse B Display IRIG B Channel Configurations IEEE P1344 Mode Time Reference Channel A 10n Na Local M Channel B loff x UTC Mode Option of Programmable Pulse B Port COM8 Baud 9600 8 1 N Figure 4 12 IRIG B Adjustment Screen IRIG B Connection amp Timing Information For additional information on time codes IRIG B and connecting the Model 1095A C to other equipment please go to Chapter 5 Addi tionally several application notes and white papers address connection issues in more depth and are listed below These may be obtained from the Arbiter website at hitp www arbiter com appnotel01 pdf irig_accuracy_and_connection_requirements pdf irig_b_spec_brief pdf 35 4 2 7 The Programmable Pulse A Screen Select the Prog Pulse A tab to configure how the Model 1095A C sends pulses to the Prog Pulse A terminals Prog Pulse A includes two modes and seven pulse types 1095 Utility Application File Unit Settings Help ma O n x System Communication Time IRIG Prog Pulse A Prog Pulse B Display r Programmable Pulse Settings Mode Type Polarity Time On X Pulse Per Second bd Positive X Local Sd Day Hour Min Sec l sSec 01 s Sec Pulse width 0 f eo at fo Ss P ate ale 3 Pulse Delay r re 6 oe fo 4 foie Alarm Time Mark sSec 01 s Sec Time 7 f
2. 2 2 2 0 85 8 5 25 Glock Status fs ak Glace s ss Gee eh elo ee A 85 8 5 3 EEPROM Status 85 8 5 4 Receiver Status 2 008 86 8 5 5 Time Quality 86 8 5 6 Fault Message 86 Time Adjustment Commands 87 8 6 1 Return DST Settings 020 87 8 6 2 Set DST Mode 87 8 6 3 Set DST Auto Start Time 87 8 6 4 Set DST Auto Stop Time 88 8 6 5 Set Local Offset 2 88 8 6 6 Set Display Time Mode 88 IRIG Data IEEE P19344 88 Position Data Commands 89 8 8 1 Return Elevation 89 8 8 2 Return Latitude 2 89 8 8 3 Return Longitude 89 8 8 4 Set Receiver Position 89 Date and Time Commands 90 8 9 1 Set Receiver Time 90 8 9 2 Return Local Date amp UTC Date 90 8 9 3 Return Local Time amp UTC Time 90 Programmable Pulse Commands 91 8 10 1 Set Pulse Width 0 0 91 8 10 2 Set Programmable Pulse Output Mode 91 8 10 3 Set Alarm Time Mark 91 8 10 4 Set Programmable Pulse Mode Type 92 8 10 5 Set Programmable Pulse Delay 92 8 10 6 Set Pulse Polarity 0 0 92 8 10 7 Set Output Frequency 0 92 8 10 8 Set Time Selection
3. 93 xi 8 11 Miscellaneous Commands 0 93 8 11 1 Set Antenna Delay 0 93 8 11 2 Set Out of Lock Time 93 8 11 3 Return Firmware Version 93 8 11 4 Select Survey Mode 0 94 8 11 5 Set Relay Output Mode 94 8 11 6 Set RS 485 Data Output Mode 94 8 11 7 Set Display Mode 94 A CE Mark Declaration 95 B Statement of Compliance 97 xii List of Figures 1 1 1 2 1 3 1 4 1 5 2 1 2 2 3 1 3 2 3 4 3 5 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 4 11 4 12 4 13 4 14 4 15 4 16 Model 1095A Front Panel with Internal Antenna Model 1095C Front Panel with Internal Antenna Model 1095A Front Panel with Antenna Connector Model 1095C Front Panel with Antenna Connector Model 1095A C Mounting Kit Attached Mounting Tabs 0 0 Connector Block Wiring 00 Model 1095A C Mounting Situation 2 2 0 Grounding Block Antenna Assembly for Mounting Antenna Mounting Bracket 0 Antenna Mounting with AS0044600 Kit Model 1095A Startup Displays Model 1095C Startup Displays Model 1095A with Startup Fault 2 Model 1095C with Startup Fault 02 1095 Utility Application Opening Window Connecting with the Model 1095A C Reading the Con
4. Pulse Per Second Fractional seconds after on time mark Pulse Per Minute Number of seconds after each minute Pulse Per Hour Number of seconds after each hour Pulse Per Day Hour Minute Second Fractional Seconds Single Trigger Day Hour Minute Second Fractional Seconds Slow Code ON or OFF Seconds Per Pulse X number of seconds between pulses Pulse Polarity positive or negative going pulse Table 5 3 Programmable Pulse Modes amp Features 5 4 Connecting Outputs Make timing signal connections through the sealing cable port and anchor using the terminal connectors on the left set of terminals J2 To adapt to a BNC style connector you may use a BNC Breakout or other similar adapter 5 4 1 Wiring to Screw Terminals To connect timing signals the Model 1095A C series clocks have two rows of internal screw terminals J1 and J2 To mount wiring to screw terminals prepare the cable by stripping back at least 1 4 of the insulation and any shielding and DO NOT tin the bare wire with solder To attach wires to terminals first loosen the screw counter clockwise insert the wire then turn clockwise to tighten Ground the shield if present to the GND ground connector on the clock board rather than the receiving end See also Section 2 3 3 5 4 2 How Far Can I Run IRIG B Cabling Before laying cable to transmit IRIG B over long distances take time to consider the following fact
5. aE Sealing Cable a Port Figure 1 1 Model 1095A Front Panel with Internal Antenna 1 4 2 Model 1095C with Internal Antenna The Model 1095C comes with a transparent smoked cover six digit time display and four annunciator LEDs that indicate clock status as follows 1 Status Green 2 Stabilized Green 3 Unlocked Red 4 Fault Red For a description of the Model 1095C display indications see Section 4 1 2 Y Cover Mounting Screws 4 Antenna e e mmm Operate Unlocked mm Stabilized Fault mm I lil Fl fol fit L lil iE lil FL Display Board Programming Brightness Sensor J gt COM Port Switches BPBRBRPRBB a x Clock Function Terminal Pins 24 OG OK ISICIQ ISIS N T O Relay JO SES Q ejm ejm ejm ojm oO Oo ojm ojm ejm I Eu ojm Imim m m mimim im mimim mi SOCIO SE SSS Y ISK Wk l D Power Inlet Connector Fuse e Sealing Cable Port Figure 1 2 Model 1095C Front Panel with Internal Antenna 1 4 3 Model 1095A with External Antenna The Model 1095A comes standard with an opaque cover and four an nunciator LEDs Optionally may be ordered with transparent smoked cover for LED visibility LEDs indicate clock status as follows 1 Sta tus
6. Prog Pulse B Display Event GPS Configuration Mode pad Survey Mode z Time Ref Cable Delay Misc Settings Out Of Lock Version Dales Mode nas Relay Cfg BA RS 485 Out ba Unlock min Port COM1 Baud 9600 8 1 N Figure 4 5 1095 Utility Application Opening Window NOTE It is not necessary to have the Model 1095A C locked to the GPS to configure it using the 1095 Utility Time and position data however will not be accurate Configure the Model 1095A and 1095C in the same manner The most efficient method for configuring is through the use of the 1095 Utility It is also possible to program the Model 1095A C by sending basic commands through a terminal or terminal emulation program These commands are listed in Chapter 8 27 4 2 1 Establishing a Serial Connection Requirements for connection are as follows 1 computer with serial or USB port for USB you will need a USB to serial converter 2 a serial cable 3 1095 Utility Application or terminal program Using the COM1 Programming Port at J8 Use the Programming Cable Kit part no AS0067200 to connect to the RJ11 Programming Port at J8 The kit includes a modular DB9F to RJ11 adapter and 7 foot cable Make sure to set DIP switch SW8 to ON Using the COM1 Port at J1 To locate serial terminals see terminal block J1 in Figure 2 2 and Ta ble 2 1 Connect wiring to the three serial terminals RxD TxD GN
7. The examples listed below illustrate how various strings are constructed using the QQA or QQB commands This tutorial will build several strings already defined in the Model 1095A C as examples to help you form a custom string of your own In this way you can form an existing string and compare the output with the standard method of activating that string i e using the 1095 Utility as in Section 4 2 4 For example to activate the ASCII Standard broadcast in UTC time zone at 1 broadcast per second from COM1 you would type 1 1 0 0BR Three elements are specified throughout the tutorial examples 1 The desired output string is shown first 2 Next follows the input string code required to produce the output string 3 Lastly you will find some string construction notes to help you construct a valid in put string from the table of characters shown in Table 8 1 true false conditions and ordinal conditions ASCII Standard Desired String lt soh gt ddd hh mm ss gt Input String Code A TO01 d h m s r Input String Construction Notes Note that the ordinary method of starting any serial broadcast is through the 1095 Utility see Sec tion 4 2 4 Custom string entry always begins with the A for strings output from COM1 or B for strings output from COM2 Next the TO1 specifies the on time character as a Hex 01 which is the Start of Header Notice that these characters are preceded by the 75 J which prece
8. Response T t CE ee gt Format t 0 No Timeout Error t 1 Timeout Error ee Number of corrected errors in reading EEPROM data 85 8 5 4 Receiver Status Command SR SR returns the current receiver status Response V vv S ss T tt P 0ff E 0 gt Format vv Number of satellites visible to the antenna per almanac ss relative signal strength range 0 to 255 nominal value 15 tt Number of satellites being actively tracked up to twelve P Off Indicates that the time dilution of precision TDOP calculation is not being performed Returns 1 0 99 0 depending on satellite geometry when TDOP calculation is being performed A TDOP calculation is NOT performed if less than 3 satellites are visible OR if Position Hold is active E 0 currently unused 8 5 5 Time Quality Command TQ TQ returns a single ASCII character 0 4 9 A B F indicating es timated worst case time quality which follows the IEEE Standard P1344 Value Condition Accuracy Value Condition Accuracy 0 Locked max accuracy 8 Unlocked lt 10 ms 4 Unlocked lt 1 us 9 Unlocked lt 100 ms 5 Unlocked lt 10 us A Unlocked lt 1s 6 Unlocked lt 100 us B Unlocked lt 10s 7 Unlocked lt 1ms F Unlocked time not reliable Response lt Value gt gt 8 5 6 Fault Message Command FA FA returns a string that identifies a fault condition There are four messages reported by the Mode
9. and select Connect Using and choose the correct COM port for your computer 2 In the COM Properties window choose the same properties as you have set on the Model 1095A C Under Flow Control choose None 1095 HyperTerminal Port Settings Bits per second 9600 Data bits 8 Parity None Stop bits 1 Fow conto TT v Restore Defaults Cea Figure 4 16 HyperTerminal Window Port Settings 3 You should be looking at an open terminal window with a blinking cursor 4 Type in the characters VE and the Model 1095A C should return the firmware version date code For this example the response came back as follows 30 Jun 2009 40 4 3 2 Using Tera Term Pro Tera Term Pro is more useful than HyperTerminal because its features are easier to use and it allows you to change port parameters while the program is open The program is freeware and you may download it from the Arbiter website shown below http www arbiter com misc_software Connecting with Tera Term Pro 1 Start Tera Term select the Serial radio button and choose the correct COM port number for your computer Tera Term disconnected VT Tera Term New connection TCPHIP Host myhost mydomain F Telnet TCP port Serial Por O Figure 4 17 Tera Term Pro Window COM Port Selection 2 Under Setup check Serial Port and verify that the baud rate and other settings agr
10. 200 ft cable RG 6 236 ns 17 dB CA0021375 75 m 250 ft cable RG 6 295 ns 21 dB WC0004900 305 m 1000 ft roll RG 11 3 92 ns m 17 5 dB 100 m AS0044800 RG 11 Kit and crimp tool N A N A AS0044700 21 dB in line amplifier 1 ns 21 dB Table 7 1 GPS Cable Data and Accessory Information 7 1 7 Physical Protection When routing the antenna cable protect it from physical damage which may result from closing doors falling objects foot traffic etc Also when routing around corners allow for sufficient bend radius to prevent kinks Extra length should be allowed at both ends of the ca ble to prevent tension on the connectors which could cause damage or failure Extra length is useful as a service loop in the event that a connector needs replacement Do not stretch the cable mid air over any appreciable distance without support Cable degradation or failure could result Always leave a drip loop wherever the cable enters a structure to prevent water from entering the structure via the cable jacket The maximum temperature rating for the type of cable provided with the clock is 75 C 167 F Exercise care when routing the cable near sources of heat to avoid cable damage 65 7 1 8 Adjacent Signals Although the standard RG 6 style cable is triple shielded and has excel lent shielding properties be cautious when routing near high power RF sources or alongside cables carrying high power RF suc
11. 4 20 attenuation 5 DC resistance 6 physical protection 7 adjacent signal interference and 8 surge arresters 3 3 4 Mounting an External Antenna 1 Slide the pipe nipple over the antenna cable WARNING Do not spin the antenna onto cable Attach and tighten using cable nut 2 Attach the antenna cable to the antenna connector 3 Thread the PVC pipe into the antenna 4 Mount the plastic pipe and antenna cable assembly to a fixture GPS Antenna 3 4 Pipe Nipple a RG 6 oy m ii III a Operate LED Mounting Point Figure 3 3 Antenna Assembly for Mounting 3 3 5 Optional Antenna Mounting Kit The Antenna Mounting Kit P N AS0044600 see Figure 3 5 specif ically for use with antennas shipped with Arbiter Systems GPS controlled clocks includes several items including the mounting bracket see Figure 3 4 The hardware included with the bracket allows instal lation of the antenna on a mast or pipe up to about 2 in diameter and a different clamp may be substituted for use with a larger diameter pipe Also the bracket can be mounted to a wall a roof or any other flat surface For complete details on this product request document number PD0024700 All metallic hardware is made from stainless steel Qty Description ASI P N 1 GPS antenna mounting bracket HD0052700 1 U bolt 1 1 8 with 2 hex nuts HP0014700 1 3 4 x 4 threaded pipe
12. 5 5 Rarop Vaitt Leo 4 304 3 3 0 01 100 4 Ohms The Power dissipation P is found from Calculation 5 6 5 6 P I R 0 01 x 100 4 0 01 Watts In this example an eighth watt resistor should work fine For a voltage that is too low the modulated IRIG B signal level must be increased by some other means such as 1 distributing the loads differently to reduce the current raising the available voltage 2 by reducing the cable loss by increasing the wire size or 3 by using an amplifier 52 5 4 8 Cable Delays Compensate for antenna cable delays in the 1095A C by using the 1095 Utility or by using the AD command described in Section 8 11 1 To set the cable delay using the 1095 Utility see Cable Delay in GPS Configuration window under the System Tab in Section 4 2 3 However the Model 1095A C cannot compensate for the delay of output timing signals therefore a delay in time must be expected due to the type and length of cable Electromagnetic waves travel at the speed of light C in free space or vacuum and a fraction of that speed through cabling The speed of an electromagnetic wave in free space is given by Constant 5 7 5 7 C x 9 84 x 10 feet second Since electromagnetic waves travel slower through any cable cable manufacturers normally specify cable with a velocity factor VF which is a percentage of the speed of light in free space and characteristic of the specific cable The veloc
13. 6 5 1 Standard 9 to 30 Vdc unregulated 10 W max 3 81 mm terminal strip connector included Voltage 6 6 General 6 6 1 Physical Size Weight Antenna Sealing Cable Port Degree of Protection 4 7 x 7 1 x 2 4 in without sealing cable port 120 x 180 x 60 mm w x 1x h length 7 88 in 200 mm with sealing cable port 1 kg 2 2 lbs net 2 kg 4 4 lbs shipping Built in or optional external Accepts multi conductor cable with an OD from 6 mm 0 236 to 12 mm 0 470 IP65 IEC 60529 NEMA 1 2 4 4x 12 13 6 6 2 Environmental Temperature Operating Storage Instrument 40 to 85 C 40 to 85 C Antenna external 40 to 85 C 55 to 100 C Antenna Cable external 40 to 75 C 40 to 80 C Humidity 10 to 90 non condensing 10 to 90 non condensing Table 6 1 Temperature and Humidity List 6 6 3 Certification and Approvals CE mark label and certificate see Appendix A and B 62 Chapter 7 External Antenna Technical Details 7 1 Antenna Cable The standard antenna is designed for pole mounting on a 26 mm pole 1 05 in OD or 3 4 in ID pipe with either a standard l in 14 approximately M25 4 x 1 81 marine mount thread or a 3 4 in NPT pipe thread The Type F connector on the inside of the antenna is protected from direct exposure to the elements when the antenna is mounted in this way This will extend the operational life of the antenna
14. LED display should produce six dashes then zeros After a short time of tracking satellites the Unlocked LED should go out and the time display will begin counting After a few minutes of operation while being locked to the GPS the green Stabilized LED should light up and the Model 1095C should display the correct time Operate Unlocked Stabilized Fault O Operate Stabilized Ne Unlocked Fault e Geary E LI aa Garey B Operate O Stabilized Unlocked O Fault O G LI Operate Stabilized Unlocked Fault OO awani L LI l Pa Figure 4 2 Model 1095C Startup Displays 25 3It normally takes about four minutes to stabilize after achieving GPS lock 4 1 3 Model 1095A Fault Display If the Model 1095A encounters a fault the FAULT annunciator LED will light along with the Operate and possibly the Unlocked LED Fig ure 4 3 below illustrates the clock display without antenna connected OPERATE UNLOCKED e STABILIZED Figure 4 3 Model 1095A with Startup Fault 4 1 4 Model 1095C Fault Display If the Model 1095C encounters a fault the FAULT annunciator LED will light along with the Operate and possibly the Unlocked LED Fig ure 4 4 below illustrates the clock display without antenna connecte
15. PVC schedule 80 HP0014804 1 Hose clamp worm drive HP0014900 1 Mounting bracket stabilizer HD0054200 Table 3 1 Antenna Mounting Kit Parts List 21 Holas for mounting to flat surface Holes for mounting i I antenna assembly to Slots for mounting to pipe bracket using U bolt using adjustable strap Figure 3 4 Antenna Mounting Bracket U bolt Mounting i Mounting ae bracket bracket stabilizer Y U bolt N 3 4 x 4 sch 80 PVC pipe lt Antenna cable Figure 3 5 Antenna Mounting with AS0044600 Kit 22 Chapter 4 Startup amp Configuring 4 1 Startup NOTE Apply only inlet voltages from 9 to 30 Vdc The Model 1095A C is protected from reversed polarity of the inlet voltage how ever if reversed the clock will not operate The Model 1095A C may be configured without being synchronized to the GPS However the Unlocked and Fault LEDs will be lit and time will not appear correctly on the Model 1095C See page 26 for Model 1095C startup details 1 Be sure to verify the inlet voltage level and polarity before con necting power Verify connection by referring to Figure 2 2 2 Clocks with Internal Antenna Position the clock so that it can receive GPS signals Sometimes being positioned against a window will allow reception of GPS signals for synchronization For best GPS reception follow the guidelines in Chapter 3 Clocks with External Antenna
16. consists of adapter AP0007700 and cable CA0023600 Optional small rubber seal for sealing cable port see Section 2 1 3 and 6 4 4 1 3 1 Initial Programming and Setup Notes For initial programming make use of the Programming Port seen in Figures 1 1 1 4 and the Programming Cable Kit discussed above This port and the cable kit simplify connecting and programming any function on the Model 1095A C For additional information on pro gramming the Model 1095A C through this port see Section 4 2 IMODULAR DB 9 TO RJ11 ADAPTER AND RJ11 CABLE 7 allows you to connect directly to the RJ11 connector inside the unit 2 1 4 Component Identification 1 4 1 Model 1095A with Internal Antenna The Model 1095A comes standard with an opaque cover and four an nunciator LEDs Optionally may be ordered with transparent smoked cover for LED visibility LEDs indicate clock status as follows 1 Sta tus Green 2 Stabilized Green 3 Unlocked Red 4 Fault Red For a description of the Model 1095A display indications see Section 4 1 1 VY Cover Mounting Screws 4 Antenna e e Operate eps Unlocked Receiver Stabilized Fault Programming Port x COM Port Switches BBBBBRHB Relay Clock Function Terminal Pins 24 m O o O m O o O Ll O O m 1mm mmn Yoan Y wan Yma f oan f on Yf oam Ya ood Power Inlet Connector Fuse e e
17. n 0 and 1 with 0 Programmable Pulse A and 1 Programmable Pulse B nPP returns current setting Response gt 8 10 7 Set Output Frequency Command mPF mPF sets the programmable pulse output frequency from 1 to 1000 pulses per second where m the frequency in pulses per second Used with Prog Pulse B Frequency Mode PF returns current setting Response gt 92 8 10 8 Set Time Selection Command m nPS m nPS sets the programmable pulse time selection to either UTC or Local where m 0 for UTC and m 1 for Local n 0 for Prog Pulse A n 1 for Prog Pulse B nPS returns current setting Response gt 8 11 Miscellaneous Commands 8 11 1 Set Antenna Delay Command nnnnnnAD AD sets antenna system delay compensation value NOTE Factory default setting for the standard 6 meter 20 foot cable is 24 ns Time range is from 0 to 999999 nanoseconds The exact syntax for a 24 ns delay is 24DA See Section 7 1 3 for information on calculating cable delay AD returns current setting Response gt 8 11 2 Set Out of Lock Time Command nLK nLK configures the Out Of Lock function in the Model 1095A C A negative number turns the out of lock function OFF n 0 sets the out of lock time to zero delay n 1 to 99 sets the amount of delay time in minutes following loss of satellite synchronization before an out of lock signal is generated and the relay contacts change state LK returns current set
18. return the read R and write S pointers This tells you the current state of reading and writing in the event buffer For example typing SA returned the following response E R 004 026 This message tells you that 1 the Model 1095A C is set for Event recording 2 the current read pointer is at event record 004 when using the EV command and 3 that the write pointer indicates 26 records written to the event buffer 5 5 10 Clearing Event Records To clear the event buffer using the 1095 Utility click the X icon or select Unit gt Clear Events Alternatively use a terminal program connected to COM1 or COM2 see below Clearing means to com pletely remove all 300 records at one time New events may be over written only if you view them sequentially counting from Event 001 For information on clearing the event buffer see Section 4 2 3 and 8 4 3 Viewing individual event data marks them as available to be over written For example if you look at records 1 10 and events are occurring while viewing these records they will be overwritten As suming the event buffer is full and you are viewing data from records 15 20 events will not be overwritten until you also view records 1 14 Clearing Events using a Terminal Emulation Program Type or send 0 123EV to immediately clear all events stored in the event buffer See Section 8 4 3 56 Chapter 6 Specifications 6 1 In
19. 1 7 Physical Protection 65 7 1 8 Adjacent Signals aoaaa aaa aa 66 7 1 9 Antenna Power aoaaa a 66 7 1 10 Cable Connection to External Antenna 66 7 1 11 Cable Connection to Clock 66 7 1 12 User Supplied Antenna Cables 66 7 1 13 External Antenna Clock Cable Testing 66 7 2 GPS Surge Arrester Kit 2 0 0 67 7 2 1 Using a Surge Arrestr __ 67 7 2 2 Description ss sa ea eor mo ag e a as 68 22 3 Installation 2 40 00 ie sa a a Oe 3 68 7 2 4 Physical Dimensions 69 Serial Command Reference 71 9 1 Introduttigi Tocem o eae a ok u a a R 71 8 2 Serial Communication Definitions 72 8 2 1 Broadcast String Overview 73 8 2 2 String Setup Examples and Tutorial 75 8 2 3 Preconfigured Broadcast Strings 79 8 2 4 Com Port Settings 82 8 3 8 4 8 5 8 6 8 7 8 8 8 9 8 10 Broadcast Commands 83 8 3 1 Broadcast Mode Interrogate 83 8 3 2 Broadcast Mode Start Configured String 83 8 3 3 Broadcast Mode Event 83 Event Mode Commands 84 8 4 1 Return Specific Event 84 8 4 2 Set Event Channel Time 84 8 4 3 Control Event Operation 84 8 4 4 Return Deviation for Event Channel 84 Status Mode Commands 85 8 5 1 Status of Event Deviation
20. 2 2 GPS Satellite Orbits Positions and Reception GPS satellites orbit the earth with a speed of 3 9 km per second and have a circulation time of 12 hours sidereal time corresponding to 11 hours 58 minutes earth time This means that the same satellite reaches a certain position about 4 minutes earlier each day There are six 18 Sat 4 Sat 3 Sat 5 Sat 2 ua E m m m Sat 6 Sat 1 B E I i A EOE a 1095A C Remote Reclosure Box Figure 3 1 Model 1095A C Mounting Situation orbital planes at an inclination of about 55 degrees above the equator and rotated by 60 degrees around the equatorial plane With four satellites in each orbital plane there are a total of 24 active satellites with several in reserve This arrangement guarantees that there will be at least four satellites over any part of the earth at all times Due to this arrangement GPS receivers must be able to identify and track these satellites as they move across the sky and decide which satellites are the most desirable to use for positioning and timing data Note that Figure 3 1 depicts GPS satellites in a two dimensional frame and as such is inaccurate A true representation of GPS satel lite positions would be three dimensional and would have satellites scattered all over the sky moving in different directions 19 3 3 Using an External Antenna Mount the external antenna with a clear view of the sky at all points of the compass Part
21. Code 02 d h m s S01 r Input String Construction Notes Note that the ordinary method of starting any broadcast is using the 1095 Utility see Section 4 2 4 This string begins with a true false conditional 02 which is a change of status Since it is a part of the Table 8 1 character set it must be preceded by the After the appears the Julian day hours minutes and seconds that indicate the day and time that the status changed After the s seconds is an intentional space as shown in the input string code After the space is the intended and S01 which indicates a status change string type of 01 The separates the or of the true or false conditions only in this case there is no specified false condition 76 Extended ASCII DTSS MSG Desired String gt Q_yy_ ddd_hh mm ss 000___ Input String Code TOD HOA 03 y d h m s 000 Input String Construction Notes Note that the ordinary method of starting any broadcast is using the 1095 Utility see Section 4 2 4 TOD sets the on time mark as a carriage return and HOA is line feed Immediately following is a 03 which is a locked with maximum accuracy conditional This is followed by a space which indicates that the clock is locked with maximum accuracy If the condition is false then it prints a The separates the true false outputs Outside the conditional s
22. Custom1 and m 1 for Custom2 See Wikipedia at http en wikipedia org wiki ASCII 78 8 2 3 Preconfigured Broadcast Strings Listed below are the syntax and meaning of the twelve preconfigured strings that may be installed into the Model 1095A C Use the 1095 Utility Application to install and start the desired string Use the BR command as described in this chapter to start and stop the broadcasts from a terminal program Interrogate Mode In the interrogate mode the clock does not broadcast a message but waits for a command Broadcast ASCII Standard ASCII STD broadcasts the time of day as ASCII standard data from either COM1 or COM2 based on how it is configured in the 1095 Utility Communications panel or from a terminal program Response lt soh gt ddd hh mm ss gt Broadcast Event Data Configures to broadcast event data a new string for each new event It will continue to broadcast events as long as it is configured to do so and new events are being recorded Response Local mm dd yyyy hh mmP ss sssssss nnnAL gt UTC mm dd yyyy hh mmP ss sssssss nnnAU gt Broadcast Vorne Standard Configures to broadcast Vorne Standard data formatted for Vorne large format time displays from either COM1 or COM2 Refer to Arbiter Sys tems Application Note 103 for more information on using large format displays with GPS clocks from Arbiter Systems Response 44hhmmss gt UTC Local time 55ddd gt day of year
23. Display Board Programming Brightness Sensor O LJ F COM Port DE l oO Switches LI alaala lala alal O oO i ee lf I Clock Function B Terminal Pins 24 a Internal Power Inlet _ y Antenna Connector Cable Fide gt a Sealing Cable Antenna Connector Port Type F female Model 1095C Front Panel with Antenna Connector 1 4 5 Clocks with Internal GPS Antenna When mounting the Model 1095A C outdoors order it with an internally mounted patch antenna which is located at the top of the clock see Figures 1 1 and 1 2 For proper GPS reception the clock must be mounted with the top pointed up and a clear view of the sky in all directions of the compass For instructions on mounting and GPS reception see Chapter 3 1 4 6 Clocks with External GPS Antenna When planning to mount the Model 1095A C indoors order the Op tion 01 External GPS Antenna Option 01 adds a sealed female F connector near the sealing cable port for attaching the external an tenna cable and GPS antenna An internal antenna is not installed If you purchased the Model 1095A C with an external antenna see Section 3 3 for additional information Included in the kit are e External GPS Antenna e 6 meter RG 6 antenna cable assembly e Grounding block 1 4 7 Precautions Note that the optional external GPS antenna is small
24. Examples 1 1 0 0BR starts broadcasting the configured string at a rate of once per second in UTC from COMI 1 5 1 1BR starts broadcasting the configured string at a rate of once every five seconds in Local time from COM2 OBR 1BR OBR stops broadcast at COM1 1BR stops broadcast from COM2 2BR 3BR 2BR returns COM1 settings 3BR returns COM2 settings Custom String Command Command QQA B Use QQA to configure a custom broadcast string from COM1 and B to configure a custom broadcast string from COM2 These two commands allow you to create a custom broadcast string from the characters found in Table 8 1 True False and Ordinal Conditionals In addition see Section 8 2 2 for a selection custom string examples and tutorial on creating a custom string 73 Character Meaning Cssnn moad Hxx Vooks gt pi character Xor checksum of specified range where ss start location hex value from 00 to FF and nn num ber of bytes hex value from 00 to FF Day of month 1 31 Day of year 001 366 GPS elevation dddddd dd length 10 Fractional Seconds 00 99 Hexadecimal value where xx is a hex value from 00 FF Hour 00 23 Minute 00 59 Month 1 12 Local hour offset hh where hh 0 12 Local minute offset 0 59 minutes Latitude where i 1 degrees dd 2 Minutes mm 3 Fractional min
25. Green 2 Stabilized Green 3 Unlocked Red 4 Fault Red Clocks with external antenna include a GPS antenna 6 meters of RG 6 antenna cable and grounding block For a description of the Model 1095A display indications see Section 4 1 1 Cover Mounting Screws 4 e Open erate p GPS Unlocked Receiver Stabilized Fault Programming Port COM Port Switches ABBA Relay Tsg Clock Function Terminal Pins 24 1mm mmn Yoan Y wan Yma f o oam Y mam Ya ood interna a Antenna Cable Fuse e e i its Sealing Cable Antenna Connector a Port Type F female Figure 1 3 Model 1095A Front Panel with Antenna Connector 1 4 4 Model 1095C with External Antenna The Model 1095C comes with a transparent smoked cover a six digit time display and four annunciator LEDs that indicate clock status as follows 1 Status Green 2 Stabilized Green 3 Unlocked Red 4 Fault Red Clocks with external antenna include a GPS antenna 6 meters of RG 6 antenna cable and grounding block For a description of the Model 1095C display indications see Section 4 1 2 Relay Figure 1 4 vv Cover Mounting Screws 4 e e GPS Receiver Operate Unlocked mm Stabilized Fault mm Mi tit Il tot HL E E
26. Voltage Safety Model Number 1095A Industrial GPS Clock Manufacturer Arbiter Systems Inc 1324 Vendels Circle Suite 121 Paso Robles CA 93446 USA Harmonized EN55011 Class A Radiated and Conducted Emissions Standard EN50082 1 Generic Immunity Part 1 Referenced Residential Commercial and Light Industrial Environments EN61010 1 Safety requirements of Electrical Equipment for Measurement Control and Laboratory Use Signed Z Signatory Bruce H Roeder This certificate declares that the described equipment conforms to the applicable requirements of the directives on Electromagnetic Compatibility 89 339 EEC Safety 73 23 EEC and amendments by 93 68 EEC adopted by the European Union 95 APPENDIX A continued Date of Issue Directives Model Number Manufacturer Harmonized Standard Referenced Signed Signatory October 1 2008 89 336 EEC Electromagnetic Compatibility 73 23 EEC Low Voltage Safety 1095C Industrial GPS Clock Arbiter Systems Inc 1324 Vendels Circle Suite 121 Paso Robles CA 93446 USA EN55011 Class A Radiated and Conducted Emissions EN50082 1 Generic Immunity Part 1 Residential Commercial and Light Industrial Environments EN61010 1 Safety requirements of Electrical Equipment for Measurement Control and Laboratory Use Z Bruce H Roeder This certificate declares that the described equipment conforms to the applicable
27. and smooth and can be damaged if dropped Use care when handling Remember to store the antenna in a safe place before the final installation to guard against mechanical shock 1 5 Model 1095A C Clock Mounting Kit Figure 1 5 shows the Model 1095A C mounting kit that comes with the Model 1095A C The kit includes four mounting tabs and the hardware to mount the clock For mounting instructions see Section 2 2 1 6 Overview of Enclosure Constructed of polycarbonate the Model 1095A C enclosure is de signed to meet IP 66 and NEMA 4 4X 12 and 13 ratings to be wa terproof and protect it from all weather conditions For clocks with an internal GPS antenna the Sealing Cable Port provides access to all 7 Z F lt Qe w s a r SE Figure 1 5 Model 1095A C Mounting Kit electrical signals Clocks with an external antenna include the Seal ing Cable Port and a Type F connector for reception of GPS signals For additional specifications and technical details concerning the Model 1095A C enclosure please see Chapter 6 1 7 Programming Cable Kit The Programming Cable Kit part no AS0067200 consists of a seven foot length of RJ11 cable and a DB9F to RJ11 adapter This kit allows you to adapt directly from a serial port on a pc to the Programming Port RJ 11 connector at J8 inside the Model 1095A C This port is switchable between the J1 terminals TxD RxD GND and the RJ11 connector using the DIP switch S1 8 For
28. certain hours of the day 3 2 1 Antenna Operation The internal GPS antenna receives 5 Vdc and approximately 30 mA from the clock and provides about 35 dB of gain in a RHCP Right Hand Circular Polarization omnidirectional pattern over the antenna Therefore it is essential that the Model 1095A C or external antenna be mounted with the top side pointed up for proper reception of GPS signals See Figure 3 1 3 2 2 Mounting Locations Since the Model 1095A C is designed to operate outdoors it needs to be mounted so that the top of the clock is pointed straight up at the sky See Figures 1 1 and 1 2 for antenna location inside the clock Figure 3 1 illustrates the Model 1095A C mounted above a structure with a clear view of the sky in all points of the compass Pole Mounting While a pole may obscure satellites in the direction of the pole normally there are enough satellites in view to compensate for the few if any that are blocked Even those that are blocked will eventually move into view as others may move out of view Under most circumstances a pole will not block enough satellites for the Model 1095A C to lose synchronization Note that once the Model 1095A C is locked with a good geographical position it should stay synchronized with only one satellite in view Panel Mounting Use the included mounting tabs to mount the clock to a flat surface or inside a panel See the information on the included mounting tabs in Section
29. data from COM1 when new data is available 2 n 0 1BR starts broadcasting event data on COM2 when new data is available n which normally sets the broadcast interval is ignored Set o according to the desired time zone 0 for UTC or 1 for Local Response Local mm dd yyyy hh mm ss sssssss nnnL gt UTC mm dd yyyy hh mm ss sssssss nnnU gt Where nnn Event buffer read index number U UTC time L Local time 83 8 4 Event Mode Commands 8 4 1 Return Specific Event Command nED nED sets the event buffer Read Index to a specific event number 1 to 300 and returns that event information in either Local or UTC time format depending on how the command nTA below is configured Format n Event Buffer Read Index Number U UTC Time L Local Time Response LCL mm dd yyyy hh mm ss sssssss nnnL gt UTC mm dd yyyy hh mm ss sssssss nnnU gt If the event buffer is empty the nED response will be Index not active 8 4 2 Set Event Channel Time Command nTA nTA sets the time source 1095A C to either Local or UTC where n 0 sets the event time to UTC and n 1 sets the event time to Local TA returns the current setting Response gt 8 4 3 Control Event Operation Command m nEV EV m nEV controls event operation where m 0 sets the Event mode and m 1 sets the 1 PPS mode Set n 0 unless 123 see below EV returns a single event from the event buffer For example OEV sets the Event Mode 1
30. ma Ou n x System Communication Time iiG Prog Pulse A Prog Pulse B Display Daylight Savings Time Mode Auto zl Hour Min Week of Month Day of Week Month Start 2 f0 second 7 si Stop J2 Sao a First yx Sun Y Nov x Local Time Offset Hour Port COM8 Baud 9600 8 1 N y Figure 4 11 Time Adjustment Screen Daylight Saving Time In 2007 the U S Federal Government changed the start and stop dates to increase the number of days alloted to Daylight Saving Time DST Prior to the change DST started at 2 00 a m the first Sunday of April and ended at 2 00 a m on the last Sunday of October Currently DST starts at 2 00 a m on the second Sunday of March and ends at 2 00 a m on the first Sunday of November The result is an additional 4 5 weeks alloted to DST depending on the specific year Since individual countries and regions have their own names dates and times for a similar effect as DST the Model 1095A C is designed to adjust for all local times around the earth 34 4 2 6 The IRIG B Screen Select the IRIG tab to set up how the Model 1095A C transmits IRIG B to your connected relays and IED s Channel A refers to the two specific connectors labeled IRIG B unmodulated and IRIG B Mod modulated One mode of Prog Pulse B allows you to configure un modulated IRIG B differently than for Channel A see Section 4 2 8 providing a separate and independent instance of unmodulated IRIG B
31. relay output mode 94 RS 485 output mode 94 Status clock 85 EEPROM 85 faults 86 receiver 86 status of event deviation 85 time quality 86 survey mode 94 selection 94 UTC date 90 UTC time 90 serial connection kit 8 serial port output symbols 72 signal output description 46 software 1095 Utility Application 27 opening configuration file 39 saving configuration file 39 specifications 57 certifications 62 communications 59 environmental 62 general 62 GPS receiver 57 inputs amp outputs 58 interface 59 physical 62 power requirements 62 relay 59 startup 1095A 24 1095A fault display 26 1095C 25 1095C fault display 26 Statement of Compliance 97 surge arrester 67 switch DIP COM1 14 synchronizing multiple devices on one port 50 Tera Term Pro 41 terminal programs HyperTerminal 40 Tera Term Pro 41 timing outputs description 44 intro 43 unpacking the clock 1 100 Using External Antennas 63 wiring connections 12 101
32. silicone rubber gasket material When sealing the cover tighten the four M4 screws to torque specifications found in Section 6 4 4 2 1 3 Sealing Cable Port To weather seal the cabling the sealing cable port uses a rubber seal that can be ordered in two sizes 1 6 12 mm standard and 2 5 9 mm optional order part no AS0089800 These values represent the dimension of the outer diameter of the cable jacket usable with the specific seal size Tightening the outer nut reduces the internal diameter of the rubber seal securing the cable For instructions on installing the cable and wiring see Section 2 3 3 2 1 4 Mounting the External GPS Antenna Connect the optional external GPS antenna cable to Type F connec tor located next to the sealing cable port see Figures 1 4 3 and 1 4 4 With an internal GPS antenna a weather seal covers the optional an tenna port 2 1 5 Display Model 1095A C has four annunciator LEDs that display the following information operate Unlocked Stabilized Faut The Model 1095C also provides a six digit 7 segment time display with red 20 mm 0 78 in high characters Covering the standard an nunciator LEDs the numeric display in the Model 1095C has a second set of annunciator LED s on the display board for better viewing The Model 1095C also provides optional automatic dimming 2 2 Installing the Mounting Tabs Each Model 1095A C comes with four mounting
33. sss gt Format N North S for South dd degrees mm minutes ss sss seconds 8 8 3 Return Longitude Command LO LO returns the current antenna longitude Response Wddd mm ss sss gt Format W West E for East ddd degrees mm minutes ss sss seconds 8 8 4 Set Receiver Position Command d m s D M S hSP d m s D M S hSP sets the receiver position based on the following val ues negative values are South latitude and West longitude positive values are North latitude and East longitude d degrees latitude m minutes latitude s seconds of latitude D degrees of longitude M minutes of longitude S seconds of longitude h height meters Response gt 89 8 9 Date and Time Commands 8 9 1 Set Receiver Time Command yyyy MM dd hh mmTS TS sets the receiver UTC time when not locked to the GPS The command is ignored when the Model 1095A C is locked to satellites When the receiver is initially activated and has not locked onto satel lites acquisition time may be improved by giving the clock an initial estimate of UTC time which it can use with stored position and al manac data to determine which satellites and Doppler shifts to use in acquisition Format yyyy year MM month dd day hh hour mm minute Response gt 8 9 2 Return Local Date amp UTC Date Command DL DU DL returns the current Local date DU returns the current UTC date Response ddmmmy
34. switches the display on and off Selecting AUTO automatically adjusts the brightness based on the ambient light Time Reference Select either UTC or Local so that the display will indicate either UTC time or your local time Local time is determined by choosing the correct Local Time Offset for your locale and Daylight Saving adjustment if applicable in the Time screen see Section 4 2 5 Brightness For manual brightness control set the Mode to ON and adjust the slider to manually set the display brightness Brightness may also be set using the LE command described on page 94 Note that the brightness will not change until the new configuration is written 38 4 2 10 Saving a Configuration File After going to the effort of configuring the Model 1095A C save it to a file for later use using the 1095 Utility To save a configuration file of the current clock setup select File gt Save or click the Save icon in the 1095 Utility When you do so a Save Configuration window will appear for you to enter a file name and select a file location for the configuration file The file will attach a 1095 extension to the name 4 2 11 Uploading a Configuration To upload a configuration to a Model 1095A C you must first Read a Model 1095A C or have saved a configuration file as described above l Either Read a Model 1095A C or select File gt Open or click the Open folder icon and choose the configuration file for u
35. tabs suitable for mounting on most surfaces These four mounting tabs attach to the rear panel of the clock using included hardware and may be oriented on the rear of the enclosure in two ways Mounting tab kits include instructions 1 Drop the hex nut into the opening next to the cover mounting screw and hold in place with a pencil or dowel 10 2 Align the tab with the hole in the desired orientation and mount the M3 screw through the tab and into the rear panel mounting hole as shown in Figure 2 1 3 Tighten the four screws Figure 2 1 Attached Mounting Tabs 2 3 Connecting Input amp Output Wiring This section will assist you with connecting all input and output signals to the Model 1095A C clocks All standard input and output signals are routed through the sealing cable port at the bottom of the clock housing this includes inlet power 2 3 1 Internal Antenna Operation No antenna wiring is required when equipped with an internal GPS antenna For GPS reception using the internal antenna the Model 1095A C must be mounted with a clear view of the sky in all directions of the compass See Chapter 3 for more details on antenna mounting and GPS reception 11 2 3 2 Optional External Antenna Connect one end of the antenna cable to the Type F connector at the bottom of the clock housing See Section 3 3 1 for more details on antenna mounting and reception 2 3 3 Installing Main Wiring This section will guide yo
36. than for modulated because all of the loads should require the same voltage To determine load current for one Unmodulated IRIG B output 1 determine the number of loads to be connected to a single clock output 2 determine the impedance or resistance of each load calculate the load current for each device Idey 5V Raev 4 sum up all the load currents for the total current for one clock output it must not exceed 250 mA Unmodulated Example For example if the input impedance of the IED is 5 kilohms determine the device current T as seen in Calculation 5 1 50 5 1 I V Raev 5 Volts 5000 Ohms 0 001 Amps 1 mA If you were to connect ten of the same IED s to the same output then the total current drawn would be 10 x 0 001 A 0 01 A 10 mA Another method is to determine the lumped impedance of all of the connected IED s in parallel Then determine the overall current by dividing the drive voltage 5 V by the computed lumped impedance value This current should not exceed 250 mA 5 4 5 Connecting Modulated IRIG B The total load capacity for the modulated IRIG B driver depends on the type and number of loads The main difference in computing the load capacity for modulated IRIG B and unmodulated IRIG B is that many of the modulated IRIG B decoders are fairly sensitive to the peak to peak voltage With greater load capacity the clock s modu lated driver produces more current which passes through
37. the lt soh gt is transmitted on time Q may be represented by 1 space locked maximum accuracy 2 ASCII 46 Error lt 1 microsecond 3 ASCII 42 lt 10 microseconds 80 4 ASCII 35 Error lt 100 microseconds and 5 ASCII 63 gt 100 microseconds Broadcast NMEA183GLL Configures to broadcast the National Marine Electronics Association Standard NMEA 183 in GLL format geographical position latitude and longitude Response GPGLL 1111 1111l a yyyyy yyyy a hhmmss sss A iD gt Where GLL Geographic Position latitude longitude I I lati tude of position a N North or S South yyyyy yyyy longitude of position a E East or W West hhmmss sss in UTC A status A Active data A or Void V iD checksum Broadcast NMEA183ZDA Configures to broadcast the National Marine Electronics Association Standard NMEA 183 in ZDA format it includes ZDA time and date including the UTC day month year and local time zone Response GPZDA hhmmss ss dd mm yyyy xx xx iD gt Where ZDA time and date hhmmss ss UTC time dd day 1 31 mm month 1 12 yyyy year xx xx local zone description 00 to 13 hours and minutes iD checksum Broadcast ABB_SPA_MSG Configures to broadcast the ABB SPA format a time string sequence of 32 ASCII characters starting with the characters gt 900WD and ending with a carriage return Response gt 900WD
38. 095A C with External Antenna Optional Accessories 0 000 20004 1 3 1 Initial Programming and Setup Notes Component Identification 1 4 1 Model 1095A with Internal Antenna 1 4 2 Model 1095C with Internal Antenna 1 4 3 Model 1095A with External Antenna 1 4 4 Model 1095C with External Antenna 1 4 5 Clocks with Internal GPS Antenna 1 4 6 Clocks with External GPS Antenna WAT Precautions soi amp ef s wok Ae eee S Model 1095A C Clock Mounting Kit Overview of Enclosure 000 0004 Programming Cable Kit _ OAINNNNWDOTBWWNNYNNYNYNE Introduction s y s s a h ee 21 1 C Eng 16S Pe ia l l a eh RRA ea 2 1 2 Enclosure Cover Seal 1 9 2 1 3 Sealing Cable Port 002 10 2 1 4 Mounting the External GPS Antenna 10 2 1 5 Display erpe pee eo bee k s RE ES 10 Installing the Mounting Tabs 0 10 Connecting Input amp Output Wiring 11 2 3 1 Internal Antenna Operation 11 2 3 2 Optional External Antenna 12 co co vii 2 3 3 Installing Main Wiring 2 12 2 3 4 Signal Connections and Controls 13 2949 MUSE ys Seco S ha Gra SL tan Bgl Plas e 15 2 3 6 Inlet Power 2 022 Q Y eu w 15 2 3 7 Verifying Communication 15 3 GPS Reception 17 3A WntrOoduction ys maie e a na a oe Ae he g ua oS 17 3 2 Ba
39. 11 2 320 V III 2 640 V II 2 EN VDE 0 14 2 5 mm 0 006 in 0 098 in 0 14 1 5 mm 0 006 in 0 059 in 300 V 10 A 28 14 300 V 10 A 30 14 300 V 10 A 30 14 CB CCA CSA CUL GOST SEV UL 60 Terminal Connection Details Turning the screw clockwise tightens and counterclockwise loosens the terminal connectors Screws are tightened completely clockwise when leaving the factory Before inserting wire make sure to turn the necessary connector screws counterclockwise to fully open the connector jaw then turn clockwise to tighten 6 4 4 Sealing Cable Port Specifications Standard configuration includes a weather resistant sealing cable port for wiring all signals and power to and from the Model 1095A C Multi conductor cable can be sized so that the sealing cable port will seal when tightened One such cable that works is Belden 9747 audio control and instrumentation cable Belden 9747 has 12 pairs of 22 AWG stranded wire with PVC insulation and a PVC jacket The nominal outer diameter is 0 425 inches Figure 6 1 Sealing Cable Port Selected Sealing Cable Port Specifications Cable Range 1 Standard Cable Range 2 Optional Thread Size amp Type Clearance Hole Degree of Protection Hummel part no Cover Screw Torque 0 24 0 47 in 6 12 mm 0 20 0 35 in 5 9 mm 1 2 NPT 0 80 in 20 3 mm IP65 1 609 1200 70 2 5 Ibf in 30 cN m 61 6 5 Power Requirements
40. 1inn gt out of lock time bel gt bel Hex 07 sounds at the end of the time code 79 Broadcast Status Configures to broadcast specific clock information if the status changes Response ddd hh mm ss Status Message gt Status Messages include 1 RECEIVER failure 2 OUT OF LOCK 3 LOCKED 4 ANTENNA OPEN 5 ANTENNA SHORT and 6 ANTENNA OK Broadcast Extended ASCII Configures to broadcast the time of day as ASCII using an extended format prefaced with a time quality indicator Q The start bit of the carriage return is transmitted on time Response gt Q_yy_dd_hh mm ss 000___ Where Q time quality indicator and may be represented by _ a space meaning it is locked with maximum accuracy ASCII 63 meaning it is unlocked accuracy not guaranteed Broadcast ASCII plus Quality Configures to broadcast the time of day as ASCII data appended with a time quality indicator Response lt soh gt ddd hh mm ssQ gt Where the start bit of the lt soh gt is transmitted on time Q may be represented by 1 space locked maximum accuracy 2 ASCII 46 Error lt 1 microsecond 3 ASCII 42 lt 10 microseconds 4 ASCII 35 Error lt 100 microseconds and 5 ASCII 63 gt 100 microseconds Broadcast ASCII plus Year Configures to broadcast the time of day and year as ASCII appended by a quality indicator Response lt soh gt yyyy_ddd hh mm ssQ gt Where the start bit of
41. 24 1095A C software connecting 28 display setup 38 prog pulse A 36 prog pulse B 37 reading clock config 30 serial parameters 33 system parameters 31 time adjustment 34 35 USB to Serial adapters 29 1095C startup 25 accessory cables 64 analog drivers 45 antenna clock connection 66 connection 66 external 12 internal 11 mounting assembly 21 mounting kit 21 mounting procedure 21 pipe mount dimensions 63 power supplied to 66 user supplied cables 66 antenna cable 63 effects of cable parameters 63 antenna cable testing 66 Appendix A 95 98 B 97 cable accessory 64 adjacent signal interference 66 attenuation 64 Belden 12 DC resistance 64 delay 64 delays 53 distance 49 main functions 12 physical protection 65 timing output 49 user supplied antenna 66 wire losses 51 wiring 1095A C 12 CE Mark Declaration 95 COM ports 71 configure clock COM parameters 33 connect 28 display 38 IRIG B 35 open new configuration 39 prog pulse A 36 prog pulse B 37 read configuration 30 save config file 39 system 31 time adjustment 34 tutorial 27 usb to serial adapter 29 using terminal programs 40 Windows device manager 29 connecting modulated IRIG B 51 outputs 49 unmodulated IRIG B 50 Daylight Saving Time 34 deviation measurement 54 measurement principle 54 digital drivers 45 DIP switches 14 drive current vs output voltage 4
42. 5 driver analog 45 digital 45 event inputs 53 channel configuration 55 timing principle 54 events clear event buffer 32 84 fault messages 26 1095A 26 1095C 26 fuse location 12 specification 15 gps orbits 18 surge arrester 17 67 tracking 18 HyperTerminal 40 IRIG B IEEE 1344 description 48 99 modulated voltage matching 52 time code types 46 timecode description 46 unmodulated 47 waveform comparison 47 output signal description 46 port I O definitions 13 locations 13 programmable pulse description 48 pulse width 48 programming cable kit 2 relay configuration 31 contacts 13 output mode 94 set out of lock 93 specifications 59 terminals 45 RS 232C Communication see se rial command serial command antenna delay set 93 broadcast custom 73 broadcast strings 73 broadcast interrogate 83 config custom 83 config event 83 DST Summertime activate 87 return settings 87 start time 87 stop time 88 Event channel time 84 control operation 84 number 84 return deviation 84 Local Offset 88 out of lock alarm set time 93 Prog Pulse pulse delay 92 pulse frequency 92 pulse polarity 92 93 set mode 91 set pulse width 91 set time mark 91 return elevation 89 firmware version 93 latitude 89 local date 90 local time 90 longitude 89 set display mode 94 display time 88 IEEE 1344 mode 88 receiver position 89 receiver time 90
43. 5 Utility 2 Configure the correct baud rate or other settings 1095 Utility 3 Connect the correct cable s between the Model 1095A C and pe 4 Set DIP switch SW8 to ON see Table 2 1 30 4 2 3 The System Screen After selecting Unit gt Read or clicking the Read icon the 1095 Utility will display the first tab information labeled System 1095 Utility Application File Unit Settings Help N F A a a O n S x System Communication Time IRIG Prog Pulse A Prog Pulse B Display Event GPS Configuration Mode Biik Survey Mode Pewer on z Time Ref Local zl Cable Delay 169 z Misc Settings Out Of Lock Version Date 29 Jan 2009 Me mer Relay Cfg fouroftok Unlock min H RS 485 Out Rics Ej Port COM8 Baud 9600 8 1 N Figure 4 8 Reading the System Screen DEFINITIONS Event Mode Choose 1PPS Dev to set the 1PPS deviation mode choose Event to set the event mode Time Ref has two selections to set the Event time reference of the clock either UTC or Local To clear all events see next page Misc Settings Relay Cfg selects the signal that drives the relay contacts choices are Fault Out of Lock ProgPulseA ProgPulseB Stable and Event In RS 485 Out selects the type of signal transmitted by the RS 485 driver including TXDCOM1 TXDCOM2 IRIG B Prog Pulse A Prog Pulse B 1PPS Unlocked and Event In GPS Configuration Sets the Surv
44. BCD Control Function CF and Straight Binary Seconds SBS The BCD group contains only time information including the seconds minutes hours and days recycling yearly The CF group contains other time related information including year time quality leap year pending leap seconds and parity The SBS consists of the total elapsed seconds restarting daily Position identifiers separate the various components of the IRIG B time code 5 3 2 Modulated and Unmodulated IRIG B Figure 5 2 illustrates the primary differences between modulated and unmodulated IRIG B You will notice that while modulated IRIG B is distinctive because of the 1 kHz sinewave carrier it is similar to unmod ulated IRIG B since the peak to peak values of the carrier follow the same form as the digital waveform where the information is contained ON TIME 1 PPS gt Unmodulated demodulated IRIG B IRIG B B000 REFERENCE REFERENCE IRIG ZERO IRIG ONE Modulated IRIG B IRIG B B120 Figure 5 2 IRIG B Waveforms 47 5 3 3 IRIG B IEEE 1344 Extension As mentioned above the IEEE 1344 enables extra bits of the Control Function CF portion of the IRIG B time code Within this portion of the time code bit assignments include Calendar Year old method now called BC Dy gar Leap seconds and leap seconds pending Daylight Saving Time DST and DST pending Local time offset Time quality Parit
45. D per the table below Make sure to set the DIP switch SW8 to OFF Using the COM2 Port at J1 Connect wiring according to the table below DIP switches at SW8 do not affect COM2 Configure COM2 port parameters using COM1 and the Utility application PC DB 9 Pins 1095A C J1 Terminals 3 TX TxD 2 Rx RxD 5 Gnd GND Connecting 1 Remove the cover and connect the desired cable depending on which connector you choose COM1 at J1 or Programming Port at J8 2 Power ON the Model 1095A C and start the 1095 Utility Appli cation 3 Select Settings gt Serial Port gt COM choosing the correct COM port associated with your computer see Figure 4 6 4 Select Settings gt Serial Port gt Baud Rate choosing a rate to match that of the Model 1095A C 5 Select Unit gt Read or click the Read icon and the 1095 Utility should connect and read all of the unit configuration 28 1095 Utility Application Stop Bits Parity r GPS Configuration Survey Mode Time Ref z Cable Delay Misc Settings r Out Of Lock Version Date Mode Relay Cfg Unlock min i RS 485 Out z Port COm1 Baud 9600 8 1 N Figure 4 6 Connecting with the Model 1095A C Using USB to Serial Adapters If you are using a USB to Serial adapter you may want to check which COM port Windows is using If for some reason the 1095 Utility does not connect properly with the Model 1095A C you should be able to ve
46. EV sets the 1 PPS Deviation Mode 0 123EV clears the event data Response gt No Data if the event buffer is empty 8 4 4 Return Deviation for Event Channel Command DA DA returns 1 PPS deviation and sigma for the event input 84 Response dddd dd ssss ss gt Results are in microseconds Format dddd dd the deviation from 1 PPS GPS averaged over 16 samples ssss ss the standard deviation sigma of samples 8 5 Status Mode Commands 8 5 1 Status of Event Deviation Command SA SA returns the event deviation Channel setup information read index number and write index number Response D E R nnn S mmm gt Format D indicates the input channel is in 1 PPS deviation mode E indicates the input channel is in Event mode nnn is Channel read index 001 to 300 mmm is Channel write index 001 to 300 NOTE When nnn mmm and when using the EA command to read event data the event buffer is empty i e all event data which has been recorded has also been read 8 5 2 Clock Status Command SC SC returns the current clock status Response L U U xx S nn gt Format L Clock currently locked to GPS U for unlocked xx Indicates loss of lock period up to 99 minutes nn User specified out of lock delay 00 to 99 minutes refer to Table A 8 S Off if the out of lock function is deactivated S ZDL indicates zero delay 8 5 3 EEPROM Status Command SE SE returns the EEPROM status
47. Event Records 6 Specifications Introduction 6 2 Receiver Characteristics 0 0 0 000 6 1 6 3 6 2 1 6 2 2 6 2 3 6 2 4 Timing Accuracy a q uk up p en s ue bue Q Position Accuracy 2 y y l P ua b u e 2 3 2 W ata Satellite Tracking r Acquisition g a tea d a dena Daa e aoa i I O Configuration saoo e 6 3 1 Outputs ewe p ete par Z Eek X le pol 6 3 2 Programmable Pulse Output 58 6 3 3 Relay Contacts 04 59 6 4 Interface ry aoe pa ae oh A ea W AW ee aa 59 6 4 Operators 3542 nb eee axed 2 kulis ns 59 0 422 System est io ae a A A e vD 59 6 4 3 Suggestions for Main Wiring 60 6 4 4 Sealing Cable Port Specifications 61 6 5 Power Requirements 200 62 6 5 Standard gyar 204205 egone 8 eee eee ea 62 6 6 General l l u unas K u A G Q gua ee Q Q t 62 6 6 1 Physical eo ek n a V 2 U aD GE sue es 62 6 6 2 Environmental 62 6 6 3 Certification and Approvals 62 External Antenna Technical Details 63 7 1 Antenna Cable 220204 63 7 1 1 Length and Loss Considerations 63 7 1 2 Effects of Cable Parameters 63 7 1 3 Cable Delay 00 64 7 1 4 Attenuation 4 4224 278 24604 ole 64 7 1 5 DC Resistance mi oe ale a ba t ar a ee e 64 7 1 6 Accessories for Longer Cable Runs 64 7
48. For clocks using external GPS antennas make sure that the antenna cable is connected to the Type F connector at the base of the clock and position the antenna so it can receive GPS signals 3 Startup characteristics described on the following pages normally occur when power is applied to the Model 1095A C with normal GPS reception 4 1 1 Model 1095A Startup When inlet power is first applied to the Model 1095A you should see the green Operate and the red Unlocked LED light up After a short time of tracking satellites the Unlocked LED should go out After a few minutes of operation while being locked to the GPS the green Stabilized LED should light up o These indications will only be visible with the clock cover re moved o Lock and stabilization times above depend greatly on satellite reception and are under fairly ideal circumstances e e OPERATE UNLOCKED STABILIZED FAULT e OPERATE UNLOCKED O O STABILIZED FAULT e OPERATE UNLOCKED e STABILIZED Figure 4 1 Model 1095A Startup Displays lIt normally takes about four minutes to stabilize after achieving GPS lock 2Clock or antenna should be mounted with a clear view of the sky from 10 degrees above the horizon to directly overhead for all points of the compass 24 4 1 2 Model 1095C Startup When inlet power is first applied to the Model 1095C you should see the green Operate and the red Unlocked LED light up and the large
49. Model 1095A C Industrial GPS Clock Operation Manual A ARBITER 1095A C INDUSTRIAL GPS CLOCK a SYSTEMS eee www arbiter com Model 1095C Model 1095A Arbiter Systems Inc Paso Robles CA 93446 U S A www arbiter com Description This manual is issued for reference only at the convenience of Arbiter Systems Reasonable effort was made to verify that all contents were accurate as of the time of publication Check with Arbiter Systems at the address below for any revisions made since the original date of publication Contact Information Arbiter Systems Inc 1324 Vendels Circle Suite 121 Paso Robles CA 93446 805 237 3831 800 321 3831 Website www arbiter com mailto techsupport arbiter com mailto sales arbiter com What This Manual Covers This manual describes the operation and configuration of the Model 1095A C Industrial GPS Clock Current Firmware Date This version of the manual is written for clocks having a firmware date of 12 December 2011 or later Any changes made in subsequent revi sions which affect operation or specifications will be noted with either a a new manual or b a revised version of this manual To display the firmware date for your instrument connect to the unit with the 1095 Utility Application also called the 1095 Utility It displays the firmware version in the System tab under Misc To obtain the 1095 Util
50. Pulse Delay Ee po EE Zi p 4 fo 4 zJ rz Fz Alarm Time Mark sSec 01 s Sec Time er fin St aie Ge Doe Port COM8 Baud 9600 8 1 N Figure 4 14 Programmable Pulse B Setup Modes 1 Off 2 Pulse 3 Frequency and 4 IRIG B Pulse Mode Types 1 Pulse per Second 2 Pulse per Minute 3 Pulse per Hour 4 Pulse per Day 5 Single Trigger 6 Slow Code and 7 Seconds per Pulse Frequency Set frequency from 1 to 1000 in pulses per second no other settings are available Pulses have 50 percent duty cycle IRIG B Select IRIG B as Mode and go to IRIG tab Channel B to set up IRIG B preferences IRIG B from Channel B is independent from IRIG B from Channel A Polarity Alarm Time Mark Pulse Width and Pulse Delay See definitions on Programmable Pulse A in Section 4 2 7 37 4 2 9 The Display Screen Choose the Display tab to control how the display operates on the Model 1095C only it has no control over the Model 1095A annunciator LEDs There are three controls 1 Display Mode 2 Time Reference and 3 Brightness 1095 Utility Application File Unit Settings Help a d O System Communication Time IRIG Prog Pulse A Prog PulseB Display Display Configuration Mode On x Time Reference Local X Brightness Dim Port COM8 Baud 9600 8 1 N Figure 4 15 Display Control Mode There are three modes ON OFF and AUTO Selecting ON or OFF
51. Utility Broadcast Messages Select from a list of broadcast messages or a custom broadcast mes sage which may be created through the scripting as described in Sec tion 8 2 1 Broadcast Choices Interrogate ASCII Standard Event Data Vorne Standard Status Extended ASCII ASCII plus Quality Year plus ASCII NMEA183GLL NMEA183ZDA ABB_SPA_MSG Patek Philippe and Kissimmee For information on configuring a custom string please see Section 8 2 3 Broadcast String Structure For details on each preconfigured broadcast string please see Section 8 2 3 1095 Utility Application File Unit Settings Help ZI INWE System Communication Time IRIG Prog Pulse A Prog Pulse B Display COM Port Configuration Baud Rate Word Length Parity Stop Bits com F a ee ol Fe a fel comz 9600 gt fects gt J None gt eet x Broadcast Configuration Message Type Rate sec Time Reference COMI Event Data x ff uc x COM 2 Interrogate gt cal Xy Port COM8 Baud 9600 8 1 N Figure 4 10 Communication Settings 33 4 2 5 The Time Screen Select the Time tab to set up your Local Offset which is the difference between UTC and your specific local time including any Daylight Sav ing Time DST offset DST can be turned Off On or set to Auto for automatic changeovers in your specific locale The default DST setting is for North America 1095 Utility Application File Unit Settings Help N 7 gt A
52. acters with leading sign and em bedded decimal point as needed Strings are usually terminated with carriage return and line feed characters Enter any RS 232C command as written in these tables without pressing ENTER Characters are au tomatically entered when typed If including any of these commands in a programming sequence do not include any carriage return or line feed characters The following symbols and syntax are used throughout and are men tioned here for emphasis gt carriage return line feed U UTC Time L Local Time soh An ASCII character start of header Hex 01 bel An ASCII character Hex 07 n integer used for various numerical values e g nnn in minutes yyyy four digit year ddd Julian day of year mm month hh hour mm minute ss second An underline is used for clarity only and graphically represents the location of ASCII spaces 72 8 2 1 Broadcast String Overview General Broadcast Command Command m n o pBR The BR command is used to start and stop the configured broad cast and return broadcast string information as explained below See Section 8 3 for information on starting and stopping the configured string at COM1 or COM2 m m 0 Stops Broadcast m 1 starts broadcast string m 2 starts event broadcast n the update rate from 0 to 9999 seconds o the Time Zone where 0 UTC and 1 Local p the COM port where 0 COM1 and 1 COM2 Some BR Command
53. ammable Pulse B Output 4 IRIG B12x analog 6 3 2 Programmable Pulse Output Two programmable pulse outputs Prog Pulse A and Prog Pulse B are available at separate terminal connectors Modes Most pulse modes listed below allow an adjustable pulse width and pulse delay Pulse duration is programmable from 0 01 seconds to 24 hours in 10 millisecond increments except in one shot mode where the output is TTL LO prior to the specified time and HI thereafter Pulse per Second Pulse per Minute Pulse per Hour Pulse per Day Single Trigger once per year Seconds per Pulse 1 to 1000 PPS square wave Prog Pulse B only Aux IRIG Mode Prog Pulse B only 58 6 3 3 Relay Contacts One Form C SPDT fail safe 5 A at 30 Vdc 8 A at 250 Vac jumper selectable to Fault Unlocked Prog Pulse A Prog Pulse B Stabilized and Event Input functions Fail safe means the relay indicates fault or unlocked condition with power off 6 4 Interface 6 4 1 Operator Display 1095C Status LEDs 1095A4 C Setup via remote interface 6 4 2 System RS 232 6 digit LED Time of Day Operate green Stabilized green Unlocked red Fault red Local time offset IRIG Setup Local UTC 1344 ON or OFF Daylight Saving Time On Off Auto Event input Event 1 PPS deviation Programmable Pulse setup Antenna Cable delay Out of lock time 1 to 99 minutes s Off or Zero delay Power ON Survey or OFF RS 232 Serial port
54. an 1 Feb 11 Dec x WeekOfMonth 0 5 0 First 1 Second 2 Third 3 Last 4 Second from Last and 5 Third from Last y DayOfWeek 0 6 0 Sun 1 Mon 6 Sat z Minutes after midnight z 0 through 1440 Response gt 8 6 5 Set Local Offset Command mLT mLT sets the local offset in 15 minute increments for 720 minutes 12 hours where m equals the number of minutes positive East or negative West LT returns current setting Response gt 8 6 6 Set Display Time Mode Command mTD mTD sets the display mode to either UTC m 0 or Local m 1 on Model 1095C clocks only TD returns current setting Response gt 8 7 IRIG Data IEEE P1344 Command m n oIR m n oIR configures the control bits of the IRIG B IEEE P1344 stan dard oIR returns setting e g OIR returns IRA 0 0 means Channel A set to IEEE Off and IRIG time set to UTC where m 0 IEEE P1344 control bits OFF m 1 control bits ON n 0 IRIG Time UTC n 1 IRIG Time Local o 0 IRIG Output on Ch A o 1 IRIG Output on Ch B Response gt 88 8 8 Position Data Commands 8 8 1 Return Elevation Command LH LH returns the current antenna elevation Response nnnnn nn gt Format Where Elevation in meters referenced to the WGS 84 datum n 1000 00 to 18000 00 meters 8 8 2 Return Latitude Command LA LA returns the current antenna latitude Response Ndd mm ss
55. ay be ordered in four different configurations as follows Model 1095A with internal antenna see Section 1 4 1 Model 1095C with internal antenna see Section 1 4 2 Model 1095A with external antenna see Section 1 4 3 Model 1095C with external antenna see Section 1 4 4 The following information will assist you with identifying compo nents and accessories for each of the four configurations 1 1 Unpacking While the clock is housed in a rugged case intended for outdoor use handle carefully especially during setup while the cover is removed Some of the components are sensitive to shock and static electricity After opening the shipping container you will find four M4 screws securing the cover to the case For access to wiring and programming you will need to remove these screws 1 2 Included Items 1 2 1 Model 1095A C with Internal Antenna Model 1095A C Industrial GPS Clock Clock Mounting Kit see Section 1 5 Operation Manual Programming Cable Kit see Section 1 7 1 2 2 Model 1095A C with External Antenna Model 1095A C Industrial GPS Clock Clock Mounting Kit see Section 1 5 Operation Manual External GPS Antenna 6 meters of RG 6 Antenna Cable Grounding Block see Figure 3 2 Programming Cable Kit see Section 1 7 1 3 Optional Accessories Option 01 External GPS antenna see Section 1 4 6 GPS Antenna Mounting Bracket see Section 3 3 5 GPS Surge Arrester see Section 7 2 Programming Cable Kit AS0067200
56. computers equipped with a USB port and no DB 9 serial port use a USB to serial adapter Connect the programming cable kit adapter to the DB 9M connector on the USB to serial adapter to make the connection Chapter 2 Mounting and Wiring 2 1 Introduction This chapter covers wiring and mounting the Model 1095A C Industrial GPS Clock Designed to be mounted outdoors the Model 1095A C can be ordered with an internal GPS antenna For indoor mounting the Model 1095A C may be ordered with the Option 01 external GPS an tenna includes 6 meters of RG 6 antenna cable and grounding block replacing the internal antenna Whether mounting outdoors or indoors take time to read through this section to determine how you will mount the clock for optimum reception of GPS signals 2 1 1 Enclosure The Model 1095A C enclosure is designed for mounting indoors or outdoors Enclosure design and construction materials cover sealing gasket sealing cable port and optional antenna connector assure weather proof operation For enclosure dimensions see Section 6 6 1 2 1 2 Enclosure Cover Seal The enclosure cover is retained by self captivating M4 stainless steel screws and integral stainless steel bushings for repetitive assembly amp disassembly The cover gasket seals with two piece tongue amp groove construction to provide protection against access of oil dust and water Gasket is factory poured using high temperature U L listed
57. ctions You may wish to interrogate the clock on one port for basic information i e to configure something and at the same time be able to have the second serial port broadcasting a specific time code to a meter While most recent substation equipment has standardized on the IRIG B time code some devices are designed to receive ASCII data through the serial port Another common serial port function is to connect a digital wall display to indicate the time 8 2 Serial Communication Definitions This section is a complete command reference for Model 1095A C serial ports Where possible RS 232 commands are functionally grouped into similar categories For example Section 8 9 lists all of the commands used to both set and retrieve the date and time in a standard format Each command name and syntax is highlighted in bold at the be ginning of each definition Detailed information for each command and response follows each command heading Sometimes the command is very short such as the command to return the Local Time TL Other commands require a prefix before the letter command to specify them such as to start or stop a broadcast m n o pBR For example the com mand to start the ASCII Standard broadcast string at a rate of once per second in Local time from COM I is 1 1 1 0BR When a command requests information from the Model 1095A C it returns the most current data available Numeric data is returned as an ASCII string of numeric char
58. d Operate Unlocked O Stabilized Fault PPE VE LIL CL Figure 4 4 Model 1095C with Startup Fault Fault Messages The Model 1095A C can supply via either COM port a fault message that identifies the fault Possible fault messages are 1 None 2 Receiver failure 3 Antenna Short 4 Antenna Open To check for a specific fault use the FA command see Section 8 5 6 Shown below is a typical fault message using the FA command This particular message is easily demonstrated by disconnecting the antenna Fault Antenna Open gt 26 4 2 1095 Utility Application The following section illustrates how to use the 1095 Utility to configure the Model 1095A C It is compatible with Windows 2000 XP and Vista Download the 1095 Utility from the Arbiter website at the following link http www arbiter com catalog clock 1095 1095ware php The 1095 Utility allows you to read write and verify operation on the Model 1095A C For pc s without serial ports you will need to use a USB to serial converter The downloaded file will be named 1095utility_v0123 exe with 0123 symbolizing the version number Because the 1095 Utility runs on Python it does not need to be installed Double click the icon and in a few moments the program should start as illustrated in Figure 4 5 1095 Utility Application File Unit Settings Help mia XD a System Communication Time IRIG Prog Pulse
59. ded each of the other Table 8 1 characters q is for Julian Day h if for hours m is for minutes s is for seconds and r is for carriage return line feed The subdivides the Julian day hour minute and second and no space between characters After typing in the Input String Code as shown above press the Enter key The code s acceptance is indicated by a carriage return line feed Vorne Standard Desired String 44hhmmss gt 55ddd gt tinn gt bel Input String Code 44 n m s r55 d r11 U r T0O7 Input String Construction Notes Note that the ordinary method of starting the any serial broadcast is through the 1095 Utility see Sec tion 4 2 4 This input string code begins with the characters 44 note that these are printed as that and are not preceded by a h m and s follow and include a r for carriage return line feed 665 99 55 immediately follows the r then a d for Julian day followed by another r 11 immediately follows the r followed by a U for unlock time and r for another carriage return line feed Lastly the T07 specifies the on time character as the Hex 07 which sounds the bel in the machine Note that the 44 55 and the 11 are not preceded by a since they are printed as characters Status Desired String ddd hh mm ss I nn nn X nn nn gt Input String
60. ding point for the antenna system connected to a GPS receiver 2 Protects connected equipment from the damaging effects of atmo spheric static electricity and induced voltage spikes from nearby lightning strikes or other electrical events 67 7 2 2 Description The AS0094500 is a three terminal device with two type F connectors and one ground terminal One of the F connectors connects to the GPS antenna and the other F connector to the GPS receiver in the clock A screw terminal provides a point to connect an earth ground wire Being weatherproof the AS0094500 can be mounted outdoors provided that the cabling and Type F connectors are sealed from the weather The device will also pass the DC current necessary to energize the GPS antenna 7 2 3 Installation Mounting Location Location is a key consideration when installing the Model AS0094500 Mount as close as possible to a good earth ground such as a grounding rod or station ground grid The shorter the path between the arrester and the earth ground the more effectively and reliably it will bypass the induced voltages Ground Connection The Model AS0094500 surge arrester can be grounded in two ways 1 via the ground wire screw connection or 2 by hard mounting directly to a grounded metal surface If grounding via the ground wire screw connection use the largest possible gauge wire with the shortest possible ground path Hole di ameter allows up to 8 AWG wire 0 129 in
61. e T01 Y d h m s 01 x r 77 Input String Constructions Notes Note that the ordinary method of starting any broadcast is using the 1095 Utility see Section 4 2 4 The ASCII Year is identical to the ASCII Qual described above but includes the four digit year followed by a space that preceded the Julian day Notice that there are two characters for year y 0 99 and Y 2000 2xxx Common ASCII Characters Listed below are a few common ASCII control characters used with the Model 1095A C For a more complete listing of ASCII characters you will need to consult a additional sources Other printable characters may be typed in as seen on a keyboard Decimal Hex Abbreviation Description 0 00 NUL Null Character 1 01 SOH Start of Header 7 07 BEL Bell sound 10 OA LF Line Feed 13 oD CR Carriage Return Table 8 2 Short Table of ASCII Characters Preconfigured Broadcast Strings Additional preconfigured strings are available from the 1095A C by selecting them from the Communication tab in the 1095 Utility De scriptions of all of the preconfigured strings are found in the following section 8 2 3 While they are not described in the preceding tutorial you may download the Input String Code from each of them using the mCB command found on page 82 Return Custom String mCB To return a custom string installed in the Model 1094B use the mCB command where m 0 for
62. e Model 1095A C 5 2 3 Analog Drivers The Model 1095A C has one analog driver available exclusively for modulated IRIG B signals The analog driver supplies a 4 5 Volt peak to peak signal through a 19 6 ohm source resistor to connected equip ment As the load current increases the voltage drop increases across the clock source resistor reducing drive voltage Make sure to match the modulated output to within the required voltage range of the re ceiving device Table 5 1 shows how the actual drive voltage varies with increasing load current For IED s with a restricted input range match the available drive voltage to the IED through a dropping resistor of adequate power rating Drive Current mA Actual Drive Voltage Vpp 0 4 5 no load 1 4 48 10 4 3 100 2 54 Table 5 1 Drive Current vs Voltage 45 5 3 Output Signal Description The Model 1095A C provides one unmodulated IRIG B one modu lated IRIG B and two programmable pulse signals Programmable Pulse A has two modes ON and OFF Programmable Pulse B adds two additional modes Frequency and IRIG B Pulse mode is useful for timing individual pulses at specific intervals or at a specific time of day or year Frequency mode provides from 1 to 1000 pulses per second Prog Pulse B at a 50 duty cycle Programmable Pulse B may also be used as a second unmodulated IRIG B configured independently from the standard IRIG B Programmable pulse modes ar
63. e similar to 1 PPS only they have an adjustable period and pulse width Modes include pulse per second pulse per minute pulse per hour pulse per day single trigger once per year slow code and seconds per pulse 5 3 1 IRIG B Description IRIG B is a complete serial time code that occurs once per second and depending on the configuration contains the day of year hours minutes seconds year and other important information The Model 1095A C transmits Format B with four variations as seen in Table 5 2 Note that with the newer IRIG Standard 200 04 two of the designations have changed the older B000 has become B004 and B120 has become B124 Code Old New Signal Type Code Components B000 B004 Pulse width code No carrier BCDroy CF SBS B003 Pulse width code No carrier BCDroy SBS B120 B124 Sine wave modulated 1 kHz BCDroy CF SBS B123 Sine wave modulated 1 kHz BCDroy SBS IEEE 1344 ON IEEE 1344 OFF Table 5 2 IRIG B Time Code Types Available The IRIG B time code consists of 100 bits produced every second 74 bits of which contain various time date time changes and time quality information of the time signal Consisting of logic ones zeros and position identifier bits the time code provides a reliable method of transmitting time to synchronize various equipment 46 There are three functional groups of bits in the IRIG B time code in the following order Binary Coded Decimal
64. ee with your Model 1095A C 3 Type in the characters VE and the Model 1095A C should return the firmware version date code For this example the response came back as follows 30 Jun 2009 41 42 Chapter 5 Timing Signals IRIG B and Event Triggering 5 1 Introduction This section should help you with understanding choosing and connect ing the correct outputs from the Model 1095A C series clocks to syn chronize your external equipment such as protective relays It should also answer some basic questions such as e What are the different types of IRIG B e How do you connect multiple devices to one timing output e How far can you transmit timing signals e What type of cabling and connectors should I use The steps involved in synchronizing your devices to the GPS are fairly simple and should not take long to complete To expedite the process make sure that you know 1 the type of timing signal each piece of equipment requires and 2 how to enable the equipment to receive the timing signal Various methods are used to configure equipment to receive IRIG B time codes including setting a physical jumper or setup program Some equipment can auto detect the timing signal so that nothing else is required other than connecting the cable 5 2 Timing Output Description When viewing the bottom panel of the Model 1095A C you will see that all input and output signals are routed through the sealing cable po
65. er 3 GPS Reception 3 1 Introduction This chapter covers topics associated with clock location mounting and GPS reception For additional technical information on external antennas and cables and using a surge arrester see Chapter 7 Reliable operation requires that the Model 1095A C with internal antenna or external antenna be placed so that it continuously receives GPS signals for accurate time keeping Clock installations without a full view of the sky may cause lapses in GPS reception and the clock to lose synchronization lock If the clock should lose lock for any reason information in this chapter will help you troubleshoot for system failures The Model 1095A C achieves its accuracy by comparing the inter nal clock signal to the incoming GPS signals Since the 24 active GPS satellites are constantly moving across the sky in their orbits they move into and out of position for reception Besides providing time to the Model 1095A C a composite signal from each satellite also gives infor mation regarding the health of the satellite so that the GPS receiver can decide whether to use it for timing purposes 3 2 Basic Setup For complete coverage the Model 1095A C needs to have a clear view of the sky from 10 degrees above the horizon to directly overhead for all points of the compass Minimal installations where the antenna is mounted in a less favorable location may work however reception may be somewhat limited during
66. et lead is nearest the fuse See Figure 2 2 2 3 7 Verifying Communication To verify communications or to configure use the Programming Port at J8 RJ11 connector See Figure 2 2 at the upper right An acces sory Programming Cable Kit part no AS0067200 includes an RJ11 serial cable and DB9F to RJ11 adapter see Section 1 3 to connect between a computer and the 1095A C 1095 Utility Application To communicate through the Programming Port J8 you must have Sw8 in the ON position In the OFF position COM1 is connected through the terminal block J1 TxD RxD GND Verify all the other communication port settings so that they match those of the 1095 Util ity Application Baud rates are from 1200 to 115200 see Table 2 1 De fault port settings are 9600 baud 8 data bits 1 stop bit and NO parity For more information on the 1095 Utility Application see Section 4 2 Using a Terminal Program Alternatively you may communicate with the Model 1095A C using Windows HyperTerminal or other terminal emulation program such as Tera Term Prot Follow the instructions and commands provided in Chapter 8 For more information on using HyperTerminal or Tera Term Pro please see Section 4 3 1 or 4 3 2 1Tera Term Pro is a freeware download at http hp vector co jp authors VA002416 teraterm html or on the Arbiter website at the following link http www arbiter com software downloads php under Miscellaneous 15 16 Chapt
67. eturn COM Port Settings Command 2 cYB Returns the current COM port settings where c is the COM port 0 COM1 1 COM2 Example of returned settings UB 3 1 0 0 from Setting Values it translates to 9600 baud 8 data bits 1 stop bit no parity Return Current Custom Broadcast String Command mCB 2COM1 set only through dip switches see page 14 82 Returns current custom broadcast string from either port where m 0 for COM1 and m 1 for COM2 8 3 Broadcast Commands 8 3 1 Broadcast Mode Interrogate Command OBR 1BR OBR stops the configured broadcast string resets to Interrogate Mode on COMI 1BR stops the configured broadcast string on COM2 m n and o are not necessary to turn off the broadcast from either COM port Response gt 8 3 2 Broadcast Mode Start Configured String Command 1 n 0 0BR 1 n 0 1BR 1 n 0 0BR starts the Model 1095A C the configured broadcast string on COM1 1 n 0 1BR starts the configured broadcast string on COM2 Set n equal to the desired broadcast interval in seconds and o according to the desired time zone UTC or Local where o 0 for UTC and o 1 for Local NOTE to use the BR command you must first install it with the 1095 Utility or load the specific string using the QQA or QQB command Response lt soh gt ddd hh mm ss gt example is Standard ASCII 8 3 3 Broadcast Mode Event Command 2 n 0 0BR 2 n 0 1BR 2 n 0 0BR starts broadcasting event
68. ey Mode to Power ON or OFF Sets the Cable Delay to a number of nanoseconds dependent on the cable length e g 24 nanoseconds for a 20 ft cable length Out of Lock Sets the out of lock Mode to Unlock OFF Zero Delay or Unlock Delay Unlock Delay sets the delay for the relay to actuate in minutes from 1 to 99 when the clock is unlocked 31 Clearing the Event Buffer To clear all events stored in the event buffer select Units gt Clear Events or click the X icon on the right above the Prog Pulse A tab See Figure 4 9 It is not possible to clear individual events 1095 Utility Application File WEN Settings Help Time IRIG Prog Pulse A Prog Pulse B Display GPS Configuration Mode Event z Survey Mode Power On z Time Ref Local zi Cable Delay 160 a m Misc Settings r Out Of Lock Mode Unlock Delay bd Version Date 29 Jan 2009 Relay Cfg out zl Unlock min l e RS 485 Out Ries x Clear 1095 s Event data Baud 9600 8 1 N Figure 4 9 Clearing Events 32 4 2 4 The Communication Screen Select the Communication tab to view and configure any communi cation parameters including any broadcast mode see Figure 4 10 While the 1095 Utility reads either COM1 or COM2 COM1 port set tings are changed only through the dip switches inside the unit see page 14 Configure COM2 port settings only through the 1095
69. figuration 0 Reading the System Screen 0 Clearing Events 2 002 0000 4 Communication Settings ooo a Time Adjustment Sereen __ _ IRIG B Adjustment Screen Programmable Pulse A Setup 0 Programmable Pulse B Setup 0 Display Control 2 2 2 0 2 e HyperTerminal Window Port Settings xiii 4 17 Tera Term Pro Window COM Port Selection 41 5 1 5 2 6 1 7 1 7 2 Connector Terminals 00 4 44 IRIG B Waveforms 47 Sealing Cable Port _ 61 GPS Surge Arrester 2 2 2 2 2 0 00004 67 Suggested Mounting of the AS0094500 Surge Arrester 70 xiv List of Tables 2 1 3 1 5 1 5 2 6 1 7 1 8 1 8 2 COM1 Dip Switches Factory default 14 Antenna Mounting Kit Parts List 21 Drive Current vs Voltage 0 0 45 IRIG B Time Code Types Available 46 Programmable Pulse Modes amp Features 49 Temperature and Humidity List 2 62 GPS Cable Data and Accessory Information 65 Characters used with Custom Strings 74 Short Table of ASCII Characters 78 XV xvi Chapter 1 Introduction This section introduces the Model 1095A C Industrial GPS Clock and covers unpacking the Model 1095A C identifying components and ac cessories The Model 1095A C m
70. h as transmitter cables In these applications consider using RG 11 style cable P N WC0004900 Its quad shielded design provides even more isolation 7 1 9 Antenna Power The RF preamplifier within the antenna requires 5 Vdc at 30 mA nom inal for operation supplied by the clock through the antenna cable Avoid shorting the center conductor to the shield of the coaxial cable as it may damage the preamplifier Conversely a high resistance con nection or open circuit would deprive the preamplifier of power Either a short or open circuit condition in the antenna cable will render the clock inoperable 7 1 10 Cable Connection to External Antenna The male Type F connector on one end of the antenna cable mates with the female Type F connector on the antenna Avoid placing mechanical stress on the cable attachment to the antenna 7 1 11 Cable Connection to Clock The male Type F connector on the opposite end of the antenna cable connects to the female Type F connector near the sealing cable port at the bottom of the clock Only clocks with provision for external antennas will have this antenna connector 7 1 12 User Supplied Antenna Cables Any RF cable meeting the requirements described above for loss lt 21 dB at 1575 MHz and dc resistance lt 15 ohms total loop resistance may be used with the clock However prior to using a non standard an tenna cable verify proper installation by performing the power supply test and antenna re
71. ial views impose the same limitations as reviewed in Section 3 2 2 with the internal antenna When planning to mount the Model 1095A C indoors order the Option 01 External GPS Antenna With this option the Model 1095A C will be equipped with a Type F antenna connector next to the sealing cable port 3 3 1 External GPS Antenna Option 01 If you purchase the Option 01 External GPS Antenna with the Model 1095A C it will include three components e GPS Antenna e RG 6 antenna cable assembly 6 meters e Grounding block includes 2 male F connectors Figure 3 2 Grounding Block N a 3 3 2 Using the Grounding Block Bolt the grounding block to an earth ground or ground using a short length of 8 14 AWG wire between the grounding block and earth ground Connect the antenna cable between the GPS antenna and the grounding block Also included with the Grounding Block Kit are two RG 6 connectors for splicing in the grounding block Alternately fabricate an RG 6 cable to connect between the grounding block and the Model 1095A C with external antenna connector Use a suitable crimp tool to mount the connectors to the cable cable connectors and crimp tool are available from the factory 3 3 3 Technical Details on External Antennas Chapter 7 covers more information on using an external antenna with the Model 1095A C This includes 1 length and loss considerations 2 effects of cable parameters on the GPS signal 3 cable delay
72. ie z Ee P E Port COM8 Baud 9600 8 1 N Figure 4 13 Programmable Pulse A Setup DEFINITIONS Modes 1 On and Off Pulse Mode Types 1 Pulse per Second 2 Pulse per Minute 3 Pulse per Hour 4 Pulse per Day 5 Single Trigger 6 Slow Code and 7 Seconds per Pulse Polarity Pulses may be set to transition positively or negatively Alarm Time Mark Specify the time and date UTC or Local for a pulse event Pulse Width Specified in 10 millisecond increments up from 10 milliseconds 0 010 seconds up to a full 24 hours depending on Mode Pulse Delay Pulse Delay works in most modes except in Alarm Time Mark and Slow Code It delays the pulse by the selected value after the top of the second minute hour or day depending on the chosen Pulse Type 36 4 2 8 The Programmable Pulse B Screen Select the Prog Pulse B tab to configure how the Model 1095A C sends pulses to the Prog Pulse B terminals it includes four modes and seven pulse types Prog Pulse B is identical to Prog Pulse A except that it includes two additional modes 1 Frequency and 2 IRIG B 1095 Utility Application File Unit Settings Help N s lt i aB VAB x System Communication Time IRIG Prog Pulse A Prog Pulse B Display Programmable Pulse Settings Mode Type Polarity Time Pulse x Pulse Per Minute x Positive x Local od Day Hour Min Sec l sSec 01 s Sec Pulse width P f 3 23 5 fo fs 4
73. ion 0 85 One nanosecond is added to the calculated value to account for the length of the short connecting cable inside of the clock 7 1 4 Attenuation Attenuation depends upon the cable length and the loss per unit length The total attenuation must be limited to 21 dB maximum at the GPS L1 frequency of 1575 42 MHz Loss up to 42 dB can be accommodated with the separately available 21 dB in line preamplifier P N AS0044700 7 1 5 DC Resistance The cross sectional area and length of the conductors in the cable de termine the dc resistance Since power to the RF preamplifier in the antenna is supplied via the antenna cable excessive dc resistance will degrade performance 7 1 6 Accessories for Longer Cable Runs Arbiter Systems offers longer antenna cables for use with all models of clocks when the standard 6 meter 20 foot cable is inadequate For 64 RG 6 cable runs greater than 250 feet up to 500 feet Arbiter offers a 21 dB in line amplifier P N AS0044700 A larger RG 11 style cable is available P N WC0004900 305 m 1000 ft roll that can be used for runs to 120 meters 400 feet without the in line preamplifier or 240 meters 800 feet with the AS0044700 amplifier P N Description Delay ns Signal Level dB CA0021315 15 m 50 ft cable RG 6 60 ns 5 dB CA0021330 30 m 100 ft cable RG 6 119 ns 9 dB CA0021345 45 m 150 ft cable RG 6 177ns 13dB CA0021360 60 m
74. ity see Section 4 2 Alternatively using the VE command via the RS 232C port the firmware date would be returned as DD MMM YYYY e g 12 Dec 2011 see Section 8 11 3 Firmware Updates Firmware updates are available to customers by download from the Arbiter website For additional information contact Arbiter Systems at the numbers listed above under Contact Information Where ap plicable this update may include new documentation such as a new version of this manual LIMITED WARRANTY Arbiter Systems makes no warranty expressed or implied on any product manufactured or sold by Arbiter Systems except for the fol lowing limited warranty against defects in materials and workmanship on products manufactured by Arbiter Systems Products manufactured by Arbiter Systems are guaranteed against defective materials and workmanship under normal use and service for a limited lifetime The responsibility of Arbiter Systems under this warranty is limited to repair or replacement at Arbiter Systems option of any product found to be defective Arbiter Systems shall have no liability under this warranty unless it receives written notice of any claimed defect within Arbiter Systems definition of Limited Lifetime For warranty service or repair products must be returned to a ser vice facility designated by Arbiter Systems Buyer shall prepay all shipping charges to Arbiter Systems and Arbiter Systems shall pay shipping charges i
75. ity factor for the RG 6 cabling used by Arbiter Systems for GPS antenna connections is about 83 of C Most transmission lines have velocity factors in the range of 65 to 97 Using these values you can determine the actual time delay in your cable distribution system and compare it to your required accuracy As an example 840 feet of RG 6 cable with a velocity factor of 83 would delay the timing signal by approximately one microsecond For IRIG B timing applications these delays may not be important compared to other criteria Otherwise you would be forced to compensate for the time delay using another method such as advancing the timing output or placing another clock at the remote site 5 5 Input Signal Timing This section describes the two main features of input signal timing in the Model 1095A C e event recording e 1 PPS deviation measurement These features are set up through the 1095 Utility see Sec tion 4 2 3 or by using a terminal or terminal emulation program Recorded with 1 microsecond resolution acceptable event signal lev els are in three voltage ranges 5 12 Vdc 24 48 Vdc and 120 240 Vdc Use a terminal emulation program and either COM1 or COM2 53 with specific commands to recall individual recorded events see Sec tion 8 3 3 and Section 8 4 The Model 1095A C marks event data when viewed or retrieved using one of these two methods Thus if no event data points are viewed or retrieved recordi
76. l 1095A C 1 None 2 Receiver 3 Antenna Short and 4 Antenna Open Response Fault lt message gt gt 86 8 6 Time Adjustment Commands In this section Daylight Saving Summer Time is abbreviated as DST 8 6 1 Return DST Settings Command ODT ODT returns the current DST Settings to the current COM port Response Mode OFF ON or AUTO Mode AUTO gt START 02 00 Second SUN of MAR gt STOP 02 00 First SUN of NOV gt 8 6 2 Set DST Mode Command 1 mDT 1 mDT activates the DST Mode where m 0 to 2 with 0 OFF 1 ON and 2 AUTO When OFF this time adjust feature does not add the specified offset to local time display and output With m 1 ON the DST feature is always on With m 2 the DST feature will automatically change at the specified dates and times To complete the DST setup also use the Set DST Auto Start and Stop commands described below 8 6 3 Set DST Auto Start Time Command 2 w x y zDT 2 w x y zDT sets the date and time when DST starts where w Month 0 11 0 Jan 1 Feb 11 Dec x WeekOfMonth 0 5 0 First 1 Second 2 Third 3 Last 4 Second from Last and 5 Third from Last y DayOfWeek 0 6 0 Sun 1 Mon 6 Sat z Minutes after midnight z 0 through 1440 Response gt 87 8 6 4 Set DST Auto Stop Time Command 3 w x y zDT 3 w x y zDT sets the date and time when DST stops where w Month 0 11 0 J
77. me and date o 0 sets the output to Programmable Pulse A 1 to programmable Pulse B oAL returns current setting Format d day of year 1 through 366 h hour 0 through 23 m minute 0 through 59 s second 0 through 59 hs fractional seconds in 0 01 increments 00 through 99 o Programmable Pulse A or B 0 A 1 B Response gt 91 8 10 4 Set Programmable Pulse Mode Type Command m nPT m nPT configures the programmable pulse mode type where m 0 through 6 are the types and n 0 for Prog Pulse A and n 1 for Prog Pulse B For programming details see Figure 2 2 Section 4 13 and Section 4 14 nPT returns current setting Format m 0 Pulse per Second 1 Pulse per Minute 2 Pulse per Hour 3 Pulse per Day 4 Single Trigger 5 Slow Code 6 Seconds per Pulse Response gt 8 10 5 Set Programmable Pulse Delay Command m nPD m nPD sets the delay between pulses for Seconds Per Pulse mode where m selects the number of seconds in 10 millisecond increments up to 60 000 seconds n 0 selects Prog Pulse A and n 1 selects Prog Pulse B For example to set Prog Pulse A seconds per pulse mode for a pulse every 10 minutes or 600 seconds use the following command 60000 0PD nPD returns current setting Response gt 8 10 6 Set Pulse Polarity Command m nPP m nPP sets the programmable pulse transition polarity i e TTL CMOS high or low m 0 positive and m 1 negative
78. ncurred in returning the product to Buyer However Buyer shall pay all shipping charges duties and taxes for products re turned to Buyer in a country other than the United States of America THE WARRANTY SET FORTH HEREIN CONSTITUTES THE ONLY WARRANTY OBLIGATIONS OF ARBITER SYSTEMS EX PRESSED OR IMPLIED STATUTORY BY OPERATION OF LAW OR OTHERWISE ARBITER SYSTEMS DISCLAIMS ANY WAR RANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICU LAR PURPOSE AND BUYER EXPRESSLY WAIVES ALL OTHER WARRANTIES This limited warranty does not extend to any product which has been subject to 1 Improper use or application abuse or operation beyond its rated capacity or contrary to the instructions in the operation and maintenance manuals if any 2 Accident 3 Repair or maintenance performed by Buyer except in accordance with the operation and maintenance manuals if any and any special instructions of Arbiter Systems 4 Modification without the prior written authorization of Arbiter Systems whether by the substitution of non approved parts or otherwise The remedies provided herein are Buyer s sole and 1 Limited Lifetime means that Arbiter Systems will repair or replace the de fective component as long as components are available and for no more than five years after the product has been deemed obsolete iii exclusive remedies In no event shall Arbiter Systems be liable for direct indirect incidental or consequential damage
79. nd Event Triggering Introduction s u ee he eek oe el ee Be Ui 5 2 Timing Output Description 5 1 5 3 5 4 5 5 5 2 1 5 2 2 5 2 3 Standard Inputs and Outputs Digital Drivers s Dutra tee ba ae PA Analog Drivers 0044 Output Signal Description 5 3 1 5 3 2 5 3 3 5 3 4 5 3 5 IRIG B Description Modulated and Unmodulated IRIG B IRIG B IEEE 1344 Extension 1 Pulse Per Second 1 PPS Programmable Pulse Prog Pulse Connecting Outputs 200 5 4 1 5 4 2 5 4 3 5 4 4 5 4 5 5 4 6 5 4 7 5 4 8 Wiring to Screw Terminals How Far Can I Run IRIG B Cabling Synchronizing Multiple TIED s Connecting Unmodulated IRIG B Connecting Modulated IRIG B Wire Losses 2 2 eee ee eee Voltage Matching for Modulated IRIG B Cable Delays 204 Input Signal Timing 0 0 5 5 1 5 5 2 5 5 3 5 5 4 5 5 5 5 5 6 5 5 7 5 5 8 5 5 9 5 5 10 Event Timing Latency Deviation Measurement Deviation Measurement Principle Connecting Input Signals 0 Setting Event Channel Time Configuring for Event or Deviation Recording Accessing Data 0004 Broadcasting Event Data 0 Status of Event or Deviation Clearing
80. ng will be sus pended when the event buffer is full As soon as event data is viewed or retrieved its address becomes available for recording 5 5 1 Event Timing Latency Event data are recorded using a high speed capture circuit operating with a 96 MHz time base Latency is limited by the interrupt process ing speed of the clock s microcontroller which in turn depends on its workload at the time the event is received Since the workload varies from time to time latency likewise varies However response time will in general never be less than a few hundred microseconds nor greater than 10 milliseconds 5 5 2 Deviation Measurement The event input can also be configured to display measured event times as 1 pulse per second 1 PPS deviation measurements This allows comparison of an external 1 PPS signal to the clock s precision internal 1 PPS signal The clock determines the mean time difference between the two signals which can be read via either COM1 or COM2 5 5 3 Deviation Measurement Principle The measurement technique employed for 1 PPS Deviation uses the same time determination and recording scheme used for Event Time measurement see Section 5 5 2 but makes the assumption that the input signal is periodic and continuous Also the operation of the circular memory buffer is modified somewhat in that recording does not stop after the first 300 events new event data is given priority over existing data and will overw
81. o NC shorted COM to NO open 2 No Fault and Power ON COM to NC open COM to NO shorted e DIP Switch Settings use the 1 DIP switches to configure COM1 RS 232 port parameters This port cannot be configured through the serial port like COM2 Table 2 1 covers the settings for each switch e g Sw1 Baud Rate Swi Sw2 Sw3 Parity Sw4 Sw5 1200 ON OFF ON ODD ON OFF 2400 ON ON OFF EVEN OFF ON 4800 ON ON ON NONE OFF OFF 9600 OFF OFF OFF _ _ _ 19200 OFF OFF ON _ _ _ 38400 OFF ON OFF _ _ _ 57600 OFF ON ON _ _ _ 115200 ON OFF OFF _ _ _ Data Bits Sw6 Stop Bits Sw7 7 ON 1 OFF 8 OFF 2 ON COM1 Connector Select Sw8 Terminal Lug Header OFF Programming Port RJ11 ON Table 2 1 COM1 Dip Switches Factory default Ground Connection Connect the GND terminal on the left terminal block see Figure 2 2 to one or more wires of the multi conductor cabling that are connected to a station ground 14 2 3 5 Fuse A user replaceable fuse pushes into the circuit board mounted holder Fuse by Little Fuse 370 1160 250 V 1 6 Amps See Figure 2 2 2 3 6 Inlet Power Caution Verify polarity before connecting inlet power connections While the Model 1095A C is protected from reversed polarity of the inlet power it will not operate if reversed Note that the negative inl
82. oltage at 100 mA of current for 500 feet of wire including the source resistor is calculated in 5 3 5 3 Vpp 4 5 I x 19 6 source I x 19 6 wire 0 58 Vpp So you can see that most of the drive voltage is lost with 100 mA of current and 500 feet of 22 AWG twisted pair transmission line this includes the voltage losses at the source resistor 0 58 Vpp may very likely not be detected by the decoder in some IED s Remember to 1 make your cable runs as short as possible 2 use a larger diameter cable and 8 carefully distribute the loads 5 4 7 Voltage Matching for Modulated IRIG B With modulated IRIG B it was mentioned that certain decoders are very intolerant of drive voltage variation If the IED specification says that the acceptable voltage range is 3 3 Vpp 0 5 volt and the available voltage is high then you must reduce the voltage using a dropping resistor Rarop The value of the dropping resistor is determined by dividing the difference voltage Vay 7 by the device current Igey For example suppose that the available voltage is 4 5 Vpp W the nominal acceptable voltage is 3 3 Vpp and the device current is 10 mA Determine the dropping resistor value First you must determine the modulated output voltage at 10 mA of drive current Next you can calculate the value for the dropping resistor Rarop as seen in Calculations 5 4 and 5 5 5 4 Vout Voc Reource X Leo 4 5 0 196 4 304 Volts
83. or 3 26 mm This wire should be as short as possible and connected to a good earth ground Alternately the AS0094500 could be mounted directly to a well grounded plate within the facility Antenna and Clock Connections The AS0094500 is labeled to indicate which terminals should be con nected to the GPS receiver and to the GPS antenna Use only a low loss tri shield or quad shield 75 ohm coaxial cable RG 6 or RG 11 are the preferred cable types RG 59 or other similar types of coaxial cable should be avoided due to greater signal loss and poorer shielding at the GPS frequency 1 575 GHz 68 Weather Sealing the Connections To protect from weather use only type F connectors with appropriate sealing features Typically this includes an o ring in the male connector that seats against the face of the female connector on the surge arrester Also crimped connectors frequently include a silicone gel flooding com pound which enhances the ability of the connection to withstand the rain and humid conditions To better seal the entire connection cover the joint with GE Silicone II compound or rubber boot seal Use the proper crimping tool if using crimp on connectors Im proper tools may not guarantee a strong and sufficiently grounded con nector resulting in poor cable performance and GPS reception Con sider purchasing RF cables of various standard and custom lengths manufactured by Arbiter Systems Suggested Mounting Fig
84. or Deviation Recording Use the 1095 Utility to configure the Model 1095A C for event or devi ation recording see Figure 4 8 Alternately send commands through a terminal program using the m nEV command to configure the Event or Deviation function For example OEV configures the Event Mode and 1EV configures it to the Deviation Mode 5 5 7 Accessing Data Event data is only accessible through COM1 or COM2 using a terminal program and the serial commands Broadcast Event nED or EV Event or deviation data is not accessible through the 1095 Utility Use nED with n 1 to 300 to view a specific event by number For example type 29ED to view event number 029 Use EV repeatedly to scroll up through the event buffer beginning at record 001 For example type EV EV and you will see record 001 and 002 If you send EV later as from the previous example it will begin at record 003 Full details on these commands are located in Sections 8 3 3 and 8 4 55 5 5 8 Broadcasting Event Data For continuous viewing of event data as they occur set the clock to broadcast events using either the 1095 Utility or by using RS 232 commands By broadcasting events as they occur the Model 1095A C will continue to overwrite previous event data 5 5 9 Status of Event or Deviation Use the SA command to determine the status of these functions If you have configured the Model 1095A C for event mode send SA to
85. ors 1 resistive losses in cabling 2 Pomona Electrics www pomonaelectronics com 800 444 6785 425 446 6010 part no 4969 and 4970 49 electromagnetic interference 3 propagation delays and 4 installation and maintenance costs For details on distributing IRIG B signals over long distances see application note AN101 Distributing Timing Signals in a High EMI Environment Download file appnote101 pdf at the following link look under Timing and Frequency Application Notes http www arbiter com resources documentation php For important considerations about IRIG B connections distri bution of signals and accuracy download the file at the same link irig_accuracy_and_connection_requirements pdf 5 4 3 Synchronizing Multiple IED s In many installations clock signals are fanned out to a number of devices from one clock timing output This method makes more effi cient use of the clock synchronizing capability since the clock drivers are designed to drive multiple loads The exact number of possible loads must be determined from the input impedance of each connected IED 5 4 4 Connecting Unmodulated IRIG B To drive multiple loads from one unmodulated IRIG B output make sure that the loads are wired in parallel Sometimes this method is called daisy chaining however the idea is to drive all loads in paral lel from the single output It is much simpler to connect loads to un modulated IRIG B
86. ploading to the Model 1095A C The 1095 Utility will read the file and populate all of the configuration items in each tabbed display Select Unit gt Write or click the Write icon and the progress window should indicate that the file is being written to the unit At the end you can verify that the new configuration matches the file by selecting Unit gt Verify or by clicking the Verify icon During the verification process the program will compare all of the configurations in the Model 1095A C with those of the file A progress bar will indicate the comparison At the end a window will appear and identify any items that did not match With no verification problems the Model 1095A C should be updated with the new configuration Programming Multiple Units If you have multiple units to program you should be able to connect the cable to the next unit and select Unit gt Write or click the Write icon When programming multiple units make sure to verify baud rate and other port settings 39 4 3 Using Terminal Emulation Programs 4 3 1 Using HyperTerminal An alternate method of configuring the Model 1095A C through COM1 and COM2 is to use a terminal or terminal emulation program like HyperTerminal Also certain functions e g events are only available through using a terminal or terminal emulation program Connecting with HyperTerminal 1 Start HyperTerminal give your connection a name e g 1095A
87. requirements of the directives on Electromagnetic Compatibility 89 339 EEC Safety 73 23 EEC and amendments by 93 68 EEC adopted by the European Union 96 Appendix B Statement of Compliance October 1 2008 TO WHOM IT MAY CONCERN All Arbiter Systems Incorporated G P S Satellite Controlled Clocks are Primary Standards They provide time traceable to U T C and U S N O within published accuracy specifications anywhere in the world All Arbiter Systems Incorporated G P S Satellite Controlled Clocks also carry a limited lifetime warranty which is based on in field MTBF Mean Time Between Failures of over one million 1 000 000 hours These products are available with all known time synchronization signals presently in use world wide by the electric power industry Arbiter Systems does not supply a type test certificate as requested for G P S systems as the accuracy is a function of the G P S system and not of the receiver However we Arbiter hereby certify that this equipment conforms to all Arbiter Systems Incorporated specifications for material and process All Arbiter Systems calibration products are supplied with a type test certificate guaranteeing traceability to National Standards but are inappropriate for G P S clocks which are Primary Standards by definition nw Bruce H Roeder International Marketing Manager Arbiter Systems Inc BHR sc Regards 97 Index 1 PPS description 48 1095A startup
88. rify or reassign the COM Port being used by the USB to Serial adapter to an unused number Using Windows Device Manager To verify or change the specific COM port Windows is using for the USB to Serial adapter you may need to check under Device Manager 29 4 2 2 Reading Clock Configuration When first starting the 1095 Utility there will be two functions open Open and Read Read allows you to poll the connected Model 1095A C and download all of the configuration information You can find Read by either by selecting Unit gt Read or by clicking the Read icon When selecting the Read function by either method the 1095 Utility will immediately try to read the connected clock If it is successful it will show a progress bar for a few seconds and then populate all of the values in the 1095 Utility windows See Figure 4 7 1095 Utility Application File Unit Settings Help mi O t x System Communication Time IRIG Prog Pulse A Prog Pulse B Display Event GPS Configuration Mode Bical zi Survey Mode Power On z Time Ref Local zi Cable Delay 160 Misc Settings Out Of Lock Version Date 29 Jan 2009 Mee Relay Cfg fout of tock oo na Unlock min 1 Port COM8 Baud 9600 8 1 N Zl Figure 4 7 Reading the Configuration If for some reason you get a message that the 1095 Utility could not read the clock make sure to verify the following 1 Configure the correct COM port on your pc 109
89. rite it Since the incoming signal is at 1 Hz and the circular buffer holds 300 events each event time record will be overwritten once every 300 seconds Once every second the processor looks at the most recent group of 16 events To compute deviation it uses only the portion of the event data describing fractional seconds e g values between 0 0000000 and 0 9999999 The 16 fractional second values are normalized around 0 0000000 so that the range of results from the deviation computations will be centered on zero 0 5 seconds It also computes the statistical 54 Mean and Sigma Standard Deviation values on the 16 values View these statistics via either COM1 or COM2 using event commands found in Section 8 4 5 5 4 Connecting Input Signals To receive input signals and to record events you will need to connect your input signal to two of the four terminals depending on the voltage level they are marked 5 12 Vdc 24 48 Vdc 120 240 Vdc and RIN A 5 volt input signal would be connected between the 5 12V and RTN terminals For input wiring connections see Section 2 2 5 5 5 Setting Event Channel Time Set the event recording time to either UTC or Local through the 1095 Utility see Section 4 2 3 or by using the nTA command from a ter minal program For example OTA sets the event time to UTC and ITA sets the event time to Local For command reference see Sec tion 8 4 5 5 6 Configuring for Event
90. rt as illustrated in Figures 1 1 and 1 2 Connections themselves are at J1 J2 J3 and J8 as illustrated in Figure 5 1 same as Figure 2 2 Generally there is a power inlet voltage timing output signals and some communication path e g RS 232 If you ordered an external antenna there will be an optional type F connector mounted next to the sealing cable port 2 e g PROG A PROGRAMMING PORT 9 gt gt 3 iD m 1095 SYSTEMS GPS INDUSTRIAL CLOCK LB0045200 Figure 5 1 Connector Terminals 44 5 2 1 Standard Inputs and Outputs Timing signals to external equipment originate from the J2 connector block terminals Terminal block J2 provides one unmodulated IRIG B one modulated IRIG B two programmable pulse outputs A amp B ground and a set of Form C relay contacts 5 2 2 Digital Drivers The Model 1095A C has three high drive digital outputs capable of supplying 250 mA at greater than 4 Vdc These outputs are defined as one 1 unmodulated IRIG B and two 2 programmable pulse one Channel B which may be configured as a second unmodulated IRIG B Each output may be fanned out to a number of receiving devices depending on the overall load of the receiving devices To determine the maximum number of devices that the digital drivers can support you will need to determine the load current or input impedance for each device connected to th
91. s 2 ea called COM1 amp COM2 COM1 DIP Switches COM2 RS 232 through 1095 Utility 1200 2400 4800 9600 19 200 38 400 57 600 115 200 baud 7 or 8 data bits 1 or 2 stop bits even odd no parity COM1 configured via DIP switches TXD RXD COM Broadcast modes include ASCII Extended ASCII ASCII with Time Quality and Vorne output once every second Status output on 59 change of Status and Universal Configurable Serial Time Code RS 422 485 Transmit only to drive multiple devices includes TxD COM1 TxD COM2 IRIG B Prog Pulse A Prog Pulse B 1 PPS Unlocked Event In 6 4 3 Suggestions for Main Wiring The standard sealing cable port is suitable for mounting cable with an outer diameter ranging from 0 24 to 0 47 in 6 to 12 mm choose alternate sealing port with dimensions 0 20 to 0 35 in 5 mm to 9 mm Two Phoenix terminal blocks provide wire connections to the clock This section gives additional information on the sealing cable port and the connector block Selected Connector Block Terminals Specifications Screw thread Tightening Torque Insulating Material Group Rated surge voltage Rated voltage Connection STD Conductor solid Conductor stranded CSA Nominal voltage U Nominal current I AWG kemil CUL Nominal voltage U Nominal current I AWG kemil UL Nominal voltage U Nominal current I AWG kcmil Certification M 3 0 5 Nm I 4 kV III 3 HI 2
92. s including loss of profits whether based on contract tort or other legal theory FOR THE FASTEST POSSIBLE SERVICE PLEASE PROCEED AS FOLLOWS 1 Notify Arbiter Systems Inc specifying the instrument model number and serial number and giving full details of the difficulty Service data or instrument return authorization will be provided upon receipt of this information 2 If instrument return is authorized forward prepaid to the man ufacturer If it is determined that the instrument is not covered by this warranty an estimate will be made before the repair work begins if requested See Contact Information on page ii Model 1095A C Industrial GPS Clock Operation Manual Chapter 1 Unpacking Chapter 2 Mounting and Wiring Chapter 3 GPS Reception Chapter 4 Startup amp Configuring Chapter 5 Timing Signals IRIG B amp Event Inputs Chapter 6 Specifications Chapter 7 Using External Antennas Chapter 8 Serial Command Reference Appendix A Conformity with European Union Directives CE Mark Appendix B Statement of Compliance Index Copyright by Arbiter Systems Incorporated March 2013 All rights reserved Published by Arbiter Systems Inc PD0039700L vi Contents 1 Introduction 1 1 1 2 1 3 1 4 1 5 1 6 1 7 2 Mounting and Wiring 2 1 2 2 2 3 Unpacking z pa pas ih iec e SRA Re Re eS Included tems sua tira a od ee oe GS A A 1 2 1 Model 1095A C with Internal Antenna 1 2 2 Model 1
93. sic Setup in toe ee l a A A we ee 3 17 3 2 1 Antenna Operation 18 3 2 2 Mounting Locations 002 18 3 3 Using an External Antenna 20 3 3 1 External GPS Antenna Option 01 20 3 3 2 Using the Grounding Block 20 3 3 3 Technical Details on External Antennas 20 3 3 4 Mounting an External Antenna 21 3 3 5 Optional Antenna Mounting Kit 21 4 Startup amp Configuring 23 4 GStart pD 25 5 se wate ee plete ee a dh hw ea te Q 23 4 1 1 Model 1095A Startup 0 24 4 1 2 Model 1095C Startup 0 25 4 1 8 Model 1095A Fault Display 26 4 1 4 Model 1095C Fault Display 2 26 4 2 1095 Utility Application s esias pane a aa E Ea 27 4 221 Establishing a Serial Connection 28 4 2 2 Reading Clock Configuration 30 4 2 3 The System Screen 31 4 2 4 The Communication Screen 33 4 2 5 The Time Screen 34 4 2 6 The IRIG B Screen 0 35 4 2 7 The Programmable Pulse A Screen 36 4 2 8 The Programmable Pulse B Screen 37 4 2 9 The Display Sereen 38 4 2 10 Saving a Configuration File 39 4 2 11 Uploading a Configuration 0 39 4 3 Using Terminal Emulation Programs 40 4 3 1 Using HyperTerminal 40 4 3 2 Using Tera Term Pro 00 2 41 viii 5 Timing Signals IRIG B a
94. sistance test below 7 1 13 External Antenna Clock Cable Testing The Arbiter GPS antenna has an Operate LED located at the base of the antenna See Figure 3 3 It will glow Green if the voltage to 66 the antenna is correct It will glow Orange if the voltage is low To check the antenna power disconnect the antenna cable and measure at the antenna connector With the clock powered ON measure 4 9 to 5 1 Vde between the center conductor and threads the of the antenna connector on the clock 7 2 GPS Surge Arrester Kit Arbiter Systems sells a surge arrester only for Model 1095A C with an external antenna There is no surge protection available for the Model 1095A C using the internal antenna Other methods must be used to afford protection against voltage and electrical transients If you have ordered the GPS surge arrester kit you should mount it in line with the antenna cable See Figure 7 2 Additional infor mation on grounding GPS antennas and grounding in general are available from Arbiter Kit P N AS0094500 Figure 7 1 illustrates the AS0094500 surge arrester A ARBITER s SYSTEMS Surge Arrester Grounding Block AS0094500A Receiver Antenna Figure 7 1 GPS Surge Arrester 7 2 1 Using a Surge Arrester These instructions cover the installation of the Arbiter Systems Model AS0094500 Surge Arrester The AS0094500 performs two basic func tions 1 Provides a solid and reliable groun
95. tatement are the normal values that are broadcast at the chosen rate y d h m and s are the two digit year Julian day hours minutes seconds followed by three fractional second digits and three spaces ASCII Quality Desired String lt soh gt ddd hh mm ssQ gt Input String Code T01 d h m s 01 4 r Input String Constructions Notes Note that the ordinary method of starting any broadcast is using the 1095 Utility see Section 4 2 4 This string is very similar to the Standard ASCII described earlier appended with a quality indicator Q All of the notes under ASCII Standard apply except that Q is an ordinal The ordinal will produce all of the necessary time quality values passed on by the clock The ordinal begins with a and ends with a 01 is the selected time quality value governing the output character Ordinals are a sequence conditional meaning that you have values separated by a OR and in this case at last is a ELSE For ASCII Qual there are four OR conditions specific time quality ranges followed by one ELSE worst quality range The initial ordinal is a space meaning maximum time quality followed by a a a and finally by the ELSE condition of a A carriage return line feed r ends the string ASCII Year Desired String lt soh gt yyyy ddd hh mm ssQ gt Input String Cod
96. the internal source resister dropping the available output voltage The open circuit voltage i e with no loads is approximately 4 5 Vpp so any connected loads will cause the available voltage to drop It is a simple task to compute the available output voltage Vpp with a known current See Calculation 5 2 5 2 Vpp 4 5 Vpp I x 19 6 Ohms source resistance Therefore if you had 10 mA of load current I load the available voltage Vpp would be 4 304 Vpp If the load current equals 100 mA then the available voltage would be 2 54 Vpp So you can see how increasing the load current i e number of loads affects the available drive voltage at the clock output See also Table 5 1 5 4 6 Wire Losses Wire losses affect the available timing signal voltage applied to the de vice receiving the signal Wire has a certain resistivity associated with it that is determined by its metallic composition and its resistance de termined by the diameter and length For example single strand 22 AWG bare enamel coated copper wire has a resistance of approxi mately 19 6 ohms per 1000 feet To compute the loss we must include both wires in the connection signal and return For coaxial cabling the 51 resistance of the center conductor is rated differently than the shield For a twisted pair both of them should essentially have the same re sistance per cut length If we use a twisted pair of 22 AWG copper as above then the available v
97. this section including Figure 2 2 to identify and connect your chosen signal wires RS 232 COM1 Connect to terminals TxD RxD and GND or RJ11 Programming Port Configurable only with dip switches positions are indicated in Table 2 1 RS 232 COM2 Connect to terminals TxD RxD and GND Configure using the 1095 Utility Application see Section 4 2 RS 485 Transmit only Connection to RS485 A and RS485 B only half duplex Event Input Three input ranges 5 12 Vdc 24 48 Vdc 120 240 Vdc and RTN Inputs are isolated See Figure 2 2 Inlet Power Two terminals marked and Accepts 9 30 Vdc unregulated reverse polarity protection Prog Pulse A Two terminals marked and TTL CMOS level shift output 0 5V Prog Pulse B Two terminals marked and TTL CMOS level shift output 0 5V IRIG B Two terminals marked and TTL CMOS level shift output 0 5V IRIG B MOD Two terminals marked and 1 kHz sinewave at 4 5 Vpp 3 1 AM modulation ratio See Figure 2 2 GND Ground terminal 1 ea Relay Contacts Three terminals marked NC COM and NO Normally Closed Common Normally Open Conditions are when relay is de energized clock powered OFF The information below gives the contact condition for two states 1 Fault or Power OFF and 2 No Fault or Power ON 13 1 Fault or Power Off COM t
98. ting Response gt 8 11 3 Return Firmware Version Command VE VE returns the Firmware Revision date of the installed ROM Response dd mmm yyyy gt Where dd day of month mmm month yyyy year 93 8 11 4 Select Survey Mode Command mSS mSS sets the survey mode to either Turn Survey mode Off or to set for Power On Survey where m 0 for Turn Off Survey m 1 for Power On Survey SS returns current setting Response gt 8 11 5 Set Relay Output Mode Command mRM Sets the relay output mode where m 0 5 0 Fault 1 Out of Lock 2 Programmable Pulse A 3 Programmable Pulse B 4 Stabilized time 5 Event in RM returns the current setting Response gt 8 11 6 Set RS 485 Data Output Mode Command mDO mDO sets RS 485 data output mode where m 0 7 0 TxD A 1 TxD B 2 IRIG B 3 Programmable Pulse A 4 Programmable Pulse B 5 1 PPS 6 Unlocked 7 Event In DO returns current setting Response gt 8 11 7 Set Display Mode Command m nLE Sets the display mode on the Model 1095C only mLE m 0 5 sets the mode as follows m 0 Display off 1 Display on 2 Auto Brightness m nLE sets the brightness value with m 1 and n 1 180 must use both m and n for manual brightness control Response gt 94 Appendix A CE Mark Declaration Date of Issue October 1 2008 Directives 89 336 EEC Electromagnetic Compatibility 73 23 EEC Low
99. to cable interface 7 1 1 Length and Loss Considerations When ordering an external antenna with the Model 1095A C you will also receive a 6 meter 20 foot length of RG 6 type low loss coaxial cable terminated with male Type F connectors and a grounding block Optional lengths of RG 6 coax are separately available see Table 7 1 Cable Data and Accessory Information or call the factory 7 1 2 Effects of Cable Parameters To receive GPS signals and properly synchronize the clock the type and length of the cable are important Due to their effect on specific parameters described in the following paragraphs any changes to the length and or type of antenna cable should be made carefully Dam aged cables may also affect performance 7 1 3 Cable Delay The velocity factor and the physical length of the cable determine ca ble delay During the initial factory calibration of the clock a value for cable delay based upon the length and type of cable supplied is entered into the clock memory Firmware uses this figure to counter act the effect that the delay has upon GPS timing The value entered for a standard 6 meter cable is 24 nanoseconds For other cable op tions the delay is tabulated in Table 7 1 To calculate cable delay see Equation 7 1 1 7 1 T 1 7 1 ASKo ns Where T Cable delay in nanoseconds A Cable length in meters C Speed of light 3 x 108 meters per second Kv Nominal velocity of propagat
100. troduction The Model 1095A C Industrial GPS Clock is designed to be installed either inside or outside The Model 1095A has four annunciator LEDs for monitoring performance and the Model 1095C has four annunciator LEDs and a large six digit time display Interrogate and configure both models through RS 232 ports and included 1095 Utility software For indoor mounting both Model 1095A and 1095C may be ordered with an external GPS antenna cable and grounding block 6 2 Receiver Characteristics 6 2 1 Timing Accuracy Specifications apply at the 1 PPS and unmodulated IRIG B outputs with US Department of Defense Selective Availability SA OFF as of date of publication UTC USNO 250 ns peak lt 100 ns typical SA off 6 2 2 Position Accuracy 10 meters rms 90 confidence 6 2 3 Satellite Tracking 12 channel C A code 1575 42 MHz Receiver simultaneously tracks up to twelve satellites 6 2 4 Acquisition Acquisition times may be longer with a restricted view of the sky e 150 seconds typical cold start e 15 minutes 90 confidence cold start e 40 seconds with almanac less than 1 month old e 15 seconds with ephemeris less than 4 hours old 6 3 I O Configuration 6 3 1 Outputs Three high drive 5 Vdc 250 mA at gt 4 V and one analog modulated IRIG B 4 5 Vpp through 19 6 ohm source resistor all terminal strip connectors Output 1 Programmable Pulse A Output 2 IRIG BOOx level shift Output 3 Progr
101. u through the installation of the cabling through the sealing cable port to the connector block terminals Qe g PROG Od PULSE A 2 Ric B Q elm Oom PROG Q olom PULSEJM lt 20 IRIG B Q O olm MOD Q elm cno 1095 systems GPS INDUSTRIAL CLOCK m nc LB0045200 Qe m J2 180d Wed 4 118 dO1S 9 18 VIVO 8 ON LOWLNOO Away Figure 2 2 Connector Block Wiring 1 Remove the retaining nut washer and rubber seal from the sealing cable port housing inserting them over the cable 2 Strip back the cable jacket covering with enough wire length to reach all of the intended connections at the terminals 3 Strip each of the wires DO NOT tin with solder 4 Carefully insert the cable with nut washer and seal into the bottom of the sealing cable port housing and tighten the retaining nut until the cable is secure To protect cable from slipping provide external strain relief at mounting point 5 Connect the chosen wire pairs to the Connector Block and verify See Figure 2 2 12 6 7 See Section 6 4 3 for additional mechanical information on wiring to the terminal blocks See Section 2 3 4 for definitions of terminal connections and DIP switch settings 2 3 4 Signal Connections and Controls Listed below are the meanings of the various connections on the con nector block and configuration methods Use
102. ure 7 2 illustrates the recommended mounting of the AS0094500 with the F connectors facing downward Install drip loops in the cables to reduce the likelihood of moisture penetrating the device 7 2 4 Physical Dimensions Overall 59 mm x 38 mm x 18 mm 2 32 in x 1 49 in x 0 71 in Mounting Hole Dim 50 mm x 15 mm 1 97 in x 0 591 in Mounting Hole Dia 4 mm 0 157 in F Connector Dim 24 mm center to center Weight 48 2 g 1 7 oz 69 Structure To GPS Clock Receiver Figure 7 2 Suggested Mounting of the AS0094500 Surge Arrester 70 Chapter 8 Serial Command Reference 8 1 Introduction The Model 1095A C has two RS 232 ports and one RS 485 port with a set of serial commands for configuring and controlling clock opera tion While many users will choose to control clock operation with the 1095 Utility software see Chapter 4 others may wish to develop their own interface program Consult this appendix for information on how communicate with and configure the Model 1095A C without using the 1095 Utility COM1 settings are controlled mechanically by the 8 position dip switch in the center of the main board settings are indicated in Ta ble 2 1 COM2 settings are controlled by using the 1095 Utility Ap plication or using COM Port Settings as described in Section 8 2 4 The COM1 and COM2 do not use flow control and the RS 485 port functions in transmit only mode Use the two serial ports interchangeably for separate fun
103. utes mmmm 4 Seconds ss 5 Fractional seconds fff 6 N North or S South Longitude where i 1 Degree ddd 2 Minutes mm 3 Fractional minutes mmmn 4 Seconds ss 5 Fractional sec onds fff 6 E East or W West Carriage return and line feed String Type where ii 01 Status change re ceiver out of lock antenna short antenna open Seconds 00 59 On time character where xx is a hex value from 01 to FF Note Must be at the start or end of the string Unlock time 00 99 minutes Day of week 1 7 where 1 Sunday Day of week 1 7 where 1 Monday Year 00 99 Year 2000 2xxx Table 8 1 Characters used with Custom Strings 74 Table 8 1 Notes Conditionals can use any of the above with the exception of Cssnn and Txx in addition to any string characters Conditionals cannot be nested True False Condition ii lt t gt lt f gt where lt t gt True condition lt f gt False condition ii 01 Out of Lock 02 Status change 03 Locked with max accuracy 04 Fault 05 Daylight Saving Time change pending Ordinal Condition ii lt 0 gt lt n gt lt e gt where lt 0 gt lt 1 gt lt n gt ordinal position lt e gt Else condition ii 01 Time Quality 13 possible ordinals 02 Time Zone Indicator 3 possible 0 DST active 1 Not active 2 UTC 8 2 2 String Setup Examples and Tutorial
104. y Position identifiers To be able to use these extra bits of information protective relays RTU s and other equipment receiving the time code must be able to decode them Consult your equipment manual to determine if the IEEE 1344 feature should be turned ON in the clock To view details of the IEEE Std 1344 1995 please check with the IEEE NOTE To download a copy of of the IRIG B 2004 specification please use the link to the Arbiter web site and look under Timing and Fre quency then Application Notes http www arbiter com resources documentation php 5 3 4 1 Pulse Per Second 1 PPS A one pulse per second timing output signal is very simple in concept It is a digital bit transmitted every second with a pulse width of 10 milliseconds Probably the most critical part of this signal is that the rising edge is on time as compared with the signal from the Global Positioning System GPS To produce a 1 PPS signal from the Model 1095A C use either Prog Pulse A or Prog Pulse B See Figure 5 2 for a comparison between unmodulated IRIG B and 1 PPS 5 3 5 Programmable Pulse Prog Pulse Model 1095A C series clocks have an independent programmable pulse feature that requires some firmware configuration through COM1 or COM2 Programmable pulse modes include setting the pulse mode pulse width and time zone see Table 5 3 To configure please see Figures 2 2 4 13 and 4 14 48 Prog Pulse Mode Configured Feature
105. yy mm dd_hh mm ss fff cc gt Where yy mm dd the current date yy year of century 00 99 mm month 1 12 dd day of month 01 31 space ASCII 20H hh mm ss fff current time hh hours 0 23 mm min utes 00 59 ss seconds 00 59 or 60 while leap second fff milliseconds 000 999 cc checksum gt carriage return ASCII ODh Broadcast PATEK_PHILIPPE_MSG Configures to broadcast the Patek Philippe message Response T yy mm dd dw hh mm ss gt 81 Where dw day of the week 1 7 Broadcast KISSIMMEE_MSG Configures to broadcast the Kissimmee message used for the Telegyr 5700 RTU Response ddd hh mm ssQ lt LF gt lt CR gt Where Q quality indicator with indicators as follows _ space locked maximum accuracy ASCII 46 Error lt 1 microsecond ASCII42 Error lt 10 microseconds ASCII 35 Error lt 100 microseconds ASCII 63 gt 100 microseconds The string ends with a line feed prior to carriage return Using custom string characters this would be TOA HOD 8 2 4 Com Port Settings Configure COM2 Port Settings Command 2 b w s p cYB Sets the COM2 port settings as follows Setting Values b baud rate 0 1200 1 2400 2 4800 3 9600 4 19200 5 38400 6 57 600 7 115 200 w word length 0 7 bits 1 8 bits s stop bits 0 1 bit 1 2 bits p parity 0 off 1 even 2 odd c COM port 1 COM2 R
106. yyy gt 8 9 3 Return Local Time amp UTC Time Command TL TU TL returns the current Local time TU returns the current UTC time Response ddd hh mm ss gt NOTE The DL DU TL and TU command formats are identified as follows Format yyyy year dd day of month hh hour mm minute ss second mmm month JAN DEC ddd day of year 90 8 10 Programmable Pulse Commands 8 10 1 Set Pulse Width Command m nPW m nPW configures the Programmable Pulse output pulse width in sec onds where m 0 through 8 640 000 in 10 millisecond increments gives you from 0 to 24 hours n 0 for Prog Pulse A 1 for Prog Pulse B nPW returns current setting e g OPW returns PWA 100 which means 100 10 millisecond increments or 1 second Response gt 8 10 2 Set Programmable Pulse Output Mode Command m nPM m nPM configures the programmable pulse mode m and output port n Programmable Pulse A can accept modes m 0 and 1 Pro grammable Pulse B can accept four modes 0 1 2 and 3 nPM returns current setting Values for m and n are m 0 Pulse OFF 1 Pulse Mode 2 Frequency Mode 3 Aux IRIG Mode n 0 Timing Output A 1 Timing Output B Response gt 8 10 3 Set Alarm Time Mark Command d h m s hs oAL AL sets the date and time at which the Model 1095A C issues the programmable pulse d h m s and hs set the output pulse to be generated at the next occurrence of the specified ti

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