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Contents
1. Table 1 lists the front panel features of TETRA 42x0 modules refer to figure 1 Connector pin assignments i are detailed in section 4 A TETRA 42x0TX O O o o oo Ei DATA TYPE SELECT Q gt SC UPC connector Optical video data out optical D SWITCHES data in x 1 BNC connector 1 8 Composite video in TETRA 42x0 RX y gt SC UPC connector Optical video data in all optical data out H gt BNC connector 1 8 Composite video out W TETRA 42x0 TX and RX Og 2x Front panel screws ik Status indicator LEDs SYNC red No sync from optical in Figure 2 Location of Data Type Select Line Bias and or no internal syne a Termination Dipswitch orange No sync from remote optical in green All sync OK DC green DC power OK NV red TX no video in RX no video out Table 1 TETRA 42x0 front panel features 3 Configuration To access the internal Data Type Select Line Bias and Termination Dipswitch remove the two screws on the ETRA RY front panel as indicated in figure 3 and slide out the se On circuit card assembly B t AE fF LS oc O Owe eee REMOVE THESE SCREWS TO ACCESS SWITCH ls WD Figure 3 Access to internal configuration dipswitch SURVEILLANCE SOLUTIONS Data Type Select Line Bias and Termination Dipswitch Settings Data Interface Compatibility Selection Set switch positions through 5 of the Data T2. The data channel I O compatibility RS 232 RS 422 RS 485 4W and RS 485 2W and termination configuration is selectable via an on board 10 position dip switch See Data Configuration Front panel status LEDs indicate DC power OK video signal presence local and remote link synchronisation TETRA 42x0 units are single width 7TE Eurocard sized modules and should be used in combination with MC 11 or similar power supply cabinets Stand alone models SA option see supplementary SA 2 manual need separate 12 Vdc power supplies A Sigura PSA 12 DC 25 would be suitable Siqura 2015 Version 090902 1d TETRA42x0TX amp RX MW10 Figure 1 Tetra 42x0 RX Front Panel TX panels look similar with video inputs instead of outputs See Table 1 ee a SURVEILLANCE SOLUTIONS 2 Indications and connectors
3. TETRA 42x0 Four Channel Digital Video Multiplexer with Two Way Data USER MANUAL 1 General description TETRA 42x0 4210 for multimode and 4250 for single mode digital optical multiplexer demultiplexer systems can transmit signals through four unidirectional independent composite video channels and one bi directional data channel using one optical fiber per system Video and data audio input signals are sampled and digitised with 10 bit accuracy TETRA 42x0 TX unit receives input via the four BNC connectors It then converts and combines the four channels of composite video with the data channel into one digital data stream This in turn is converted into an optical signal with a wavelength of 1310 nm The TETRA 42x0 TX also converts and decodes an incoming 1550 nm digital optical signal from the mating RX unit that includes the data in the opposite return direction The TETRA 42x0 RX receives converts and decodes the video and data signals arriving through the optical fiber via a 1310 nm optical carrier It also converts and serializes the incoming data signal and transmits this information optically in the opposite direction towards the complementary TX using an optical wavelength of 1550 nm The composite video channels are digitally clamped after being AC coupled at the inputs The digital clamp is compatible with NTSC and PAL sync timing The video channels are not compatible with non video NTSC and PAL signals
4. W Line Receiver Input Bias BR Switch positions 7 and 8 when ON connect 390 ohm bias resistors on the and inputs The input is biased towards V and the input is biased towards V GND This bias ensures that the input line receiver interprets the state of the differential bus as a logical zero while all the drivers attached to the differential bus are in a Hi Z state There must be at least one device on the differential bus with the Line Receiver Input Bias BR enabled Switch s 7 and 8 ON Typically BR is enabled along with the termination at one end only of the bus However if other devices occupy the end positions on the bus and are terminated it needs to be ensured that there is adequate bias on the bus for proper operation Sometimes other devices provide bias If not enable BR on one of the TETRA 42x0 units on the bus To determine if adequate bias is present while there is no data activity on the bus disable the master unit if required attach the lead of a VOM to the lead of the bus and connect the lead to the lead of the bus and take a voltage measurement For optimum operation the reading should be at least 200 mV If it is less and there are operation problems enable BR by setting switches 7 and 8 in the ON position on one TETRA 42x0 connected to the bus RS 485 4W Line Driver Output Bias BD Switch positions 9 and 10 when ON connect 390 ohm bias resistors on the
5. al has been designed and tested according to the UL IEC EN 60950 1 safety requirements If there is any doubt regarding the safety of the equipment do not put it into operation This might be the case when the equipment shows physical damage or is stressed beyond tolerable limits e g during storage and transportation Before opening the equipment disconnect it from all power sources The equipment must be powered by a SELV power supply When this unit is operated in extremely elevated temperature conditions it is possible for internal and external metal surfaces to become extremely hot Optical safety This optical equipment contains Class 1M lasers or LEDs and has been designed and tested to meet IEC 60825 1 1993 A1 A2 and IEC 60825 2 2004 safety class 1M requirements Optical equipment presents potential hazards to testing and servicing personnel owing to high levels of optical radiation When using magnifying optical instruments avoid looking directly into the output of an operating transmitter or into the end of a fiber connected to an operating transmitter or there will be a risk of permanent eye damage Precautions should be taken to prevent exposure to optical radiation when the unit is removed from its enclosure or when the fiber is disconnected from the unit The optical radiation is invisible to the eye Use of controls or adjustments or procedures other than those specified herein may result in hazardous radiation exposur
6. and outputs The output is biased towards V and the output is biased towards V GND This bias ensures that the input line receivers in other RS 485 4W devices connected to the bus interpret voltage level on the bus as a logical zero while the TETRA 42x0 RS 485 4W output is in the Hi Z state Sometimes other devices provide this bias If not enable BD on one of the TETRA 42x0 units on the bus by setting switches 9 and 10 in the ON position To determine if adequate bias is present while there is no data activity on the bus disable the master unit if required attach the lead of a VOM to the A lead of the bus and connect the lead to the B lead of the bus and take a voltage measurement For optimum operation the reading should be at least 200 mV If it is less and there are operation problems enable BD by setting switches 9 and 10 in the ON position on one TETRA 42x0 connected to the bus SURVEILLANCE SOLUTIONS 4 Data Port Connector Pin Assignments 6 Technical specifications In the following Optical Specifications section a 4210 refers to an TETRA 4210 TX and TETRA 4210 RX pair for multimode operation b 4250 refers to an TETRA 4250 TX and TETRA Lite 4250 RX pair for single mode operation ation a Optical 4210 4250 Unit TX Output Wavelength 1310 1310 nm RX Output Wavelength 1550 1550 N
7. e The installer is responsible for ensuring that the label depicted below background yellow border and text black is present in the restricted locations where this equipment is installed The locations of all optical connections are listed in the Indications and Connectors section of this manual Optical outputs and wavelengths are listed in the Technical Specifications section of this manual LASER RADIATION DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS MAGNIFIERS CLASS 1M LASER PRODUCT CAUTION DISCONNECTED OPTICAL CONNECTORS MAY EMIT OPTICAL ENERGY DO NOT VIEW BEAM WITH OPTICAL INSTRUMENTS MAGNIFIERS This product contains Class 1M lasers or LEDs Class 1M laser product according to IEC60825 1 1993 A1 42 CAUTION Use of controls or adjustments or procedures other than those specified herein may result in hazardous radiation exposure Precautions should be taken to prevent exposure to optical radiation when the unit is removed trom its enclosure or when the fiber is disconnected from the unit Laser radiation may be present on a fiber connection to this unit even when the power has been removed tram the unit This unit is intended for installation in locations where only trained service personnel have access to the fiber connections The locations of all optical connections are listed in the Connection Locations and Function section of this manual Optical outputs and wavelengths are listed in the Specifications sect
8. ion of this manual SURVEILLANCE SOLUTIONS EMC The equipment has been tested and found to meet the CE regulations relating to EMC and complies with the limits for a Class B device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against interference to radio communications in any installation The equipment generates uses and can radiate radio frequency energy improper use or special circumstances may cause interference to other equipment or a performance decrease due to interference radiated by other equipment In such cases the user will have to take appropriate measures to reduce such interactions between this and other equipment Any interruption of the shielding inside or outside the equipment could cause the equipment to be more prone to fail EMC requirements Non video signal lines must use appropriate shielded CATS cabling S FTP or at least an equivalent If system components such as cabling e g coaxial cable data audio cc wiring and or the units are used outdoors ensure that all electrically connected components are carefully earthed and protected against surges high voltage transients caused by switching or lightning ESD Electrostatic discharge ESD can damage or destroy electronic components Proper precautions should be taken against ESD when opening the equipment 9 SELV conforming to IEC 60950 1 lt 60 Vdc output output voltage galvanically isolated f
9. lled and earthed such that protection is provided against lightning and similar influences 2 Upon powering up the green DC LEDs and SYNC LEDs should glow green indicating link integrity If a SYNC LED shines red on either unit there is no incoming link synchronisation at that unit If SYNC problems occur after powering up first check the received optical power arriving at the unit with the red SYNC LED using an optical power meter 3 With the optical link in good order connecting a video signal should make the corresponding channel s TX and RX NV no video LEDs go out An RX NV LED still lit would indicate that no decode able video signal is arriving through the associated channel Number of channels Data format Data interfaces 1 full duplex Asynchronous serial RS 232 RS 422 RS485 2W or 4W Data rate DC to 256 kbit s RS 422 RS 485 DC to 115 2 kbit s RS 232 Sampling Rate 3 MSamples s Environmental and Safety Operating temp 40 to 74 C Relative humidity lt 95 no condensation MTBF gt 100 000 hrs Electrical safety AL IEC EN 60950 1 UL recognition file E242498 Laser safety IEC 60825 1 IEC 60825 2 EMC immunity EN 55024 EN 50130 4 EN 61000 6 2 EMC emission EN 55022 Class B FCC 47 CFR 15 Class B Electrical Supply voltages 12 15 SA Vdc Power consumption lt 2 6 W Current 200 12 V mA Mechanical Optical connector ST PC SC UPC Video connector BNC 75 Q Data connectors 5 pin screw te
10. m e J im J No of fibers fiber type 1 MM 1 SM E TX Output Power gt 4 gt 4 dBm RX Min Input Power 22 28 dBm iL SH GROWIN LD TX to RX Link Budget 18 24 dB Rx Output Power 7 7 dBm TX Min input power 22 25 dBm RX to TX Link Budget 23 27 dB Link Length Max 4 52 km Range may be limited by fiber bandwidth RS232 RS422 RS485 4W RS485 2W INPUT IN IN IN INPUT IN IN IN Table 5 TETRA 42x0 TX RX Optical Specifications The technical specifications of the TETRA 42x0 system are listed in table 6 below OUTPUT OUT OUT OUT OUTPUT OUT OUT OUT TETRA 42x0 feral Table 4 Pin assignments for the Data I O port five Video position pluggable screw terminal No of channels 4 Video format PAL NTSC Input Output level 1 nominal Vpp 5 Installation DC restore clamping Yes Bandwidth 3 dB 6 MHz 1 Plug the modules into the appropriate power supply Sampung Tesna ieg 10 bit 56 Mz binet or hook up the SA 2 models to correspondin Prenu kean ps 1 von p l p j 8 Differential phase lt l power supplies and connect suitable video and optical Group delay lt 20 aa fiber equipment using appropriate cabling SNR gt 63 wtd dB CLEAN THE OPTICAL FIBER CONNECTORS Data PRIOR TO INSERTION INTO THE OPTICAL PORT For long electrical data links twisted pair wiring should be used Through connecting the signal ground lines is recommended equipment and cabling should be insta
11. rminal Dimensions HxWxD 128 x35 x 190 mm Weight approx 480 g Table 6 TETRA 42x0 TX RX Technical Specifications SURVEILLANCE SOLUTIONS 7 Care and maintenance For reliable operation of TETRA 42x0 modules observe the following precautions Prevent dust from collecting on the equipment Protect the equipment against moisture Maintain sufficient free space around the equipment for cooling 8 Safety EMC ESD General The safety information contained in this section and on other pages of this manual must be observed whenever this unit is operated serviced or repaired Failure to comply with any precaution warning or instruction noted in the manual is in violation of the standards of design manufacture and intended use of the unit Installation adjustment maintenance and repair of this equipment are to be performed by trained personnel aware of the hazards involved For correct and safe use of the equipment and in order to keep the equipment in a safe condition it 1s essential that both operating and servicing personnel follow standard safety procedures in addition to the safety precautions and warnings specified in this manual and that this unit be installed in locations accessible to trained service personnel only Siqura assumes no liability for the customer s failure to comply with any of these safety requirements UL TEC EN 60950 1 General safety requirements The equipment described in this manu
12. rom mains All power supplies or power supply cabinets available from Siqura comply with these SELV requirements member of the TKH Group K 9 Product Disposal The unit contains valuable materials which qualify for recycling In the interest of protecting the natural environment properly recycling the unit at the end of its service life is imperative cd us CE
13. ype Select Line Bias and Termination Dipswitch to determine whether the data port operates in RS 232 RS 422 RS 485 4W or RS 485 2W compatibility mode Refer to Table 2 ON L E a E oi Kiel al ad nd sa OR oer Om ow ON Kel Kal Kal el al Table 2 Selecting the Data Port Interface Compatibility Note The Factory Default Setting is RS 485 4W Up is OFF and Down is ON RS 422 RS 4852W and RS 485 4W Manchester Line Bias and Termination In addition to selecting the data interface compatibility above set positions 6 through 10 to satisfy the proper line bias and termination conditions to insure proper operation Refer to table 3 er rIeo iM Gl nl Nal eee eee o GAM aaa Saal Gell lead Resa e eR BR Orr OFF Table 3 Data I O Configuration Termination and Biasing for the Data Port See text for the definition of T BR and BD Note The Factory Default Setting is All switches ON RS485 4W Terminated and Biased Up in Off and Down is On RS 485 Termination T When switch position 6 is OFF the RS 485 input is unterminated When it is the ON position the differential input is terminated with 120 ohms resistance For RS 485 installations there might be a number of RS 485 devices anywhere from 2 to 32 attached to the differential bus Normally the devices at the two extremes of the bus are terminated switch 6 ON while intermediate devices are not switch 6 OFF RS 485 2W and 4
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