B&B Electronics 1140 User's Manual
Contents
1. FAX 815 433 5105 APPENDIX SPECIFICATIONS Transmission Line Dual optical cable Transmission Mode Async or sync half or full duplex Interfaces EIA RS 232 CCITT V 24 Data Rates 0 38 4 Kbps Distance 2 miles over continuous fiber RTS CTS Delay Switch selectable No delay 9 0 mS 79 5 mS Receiver Sensitivity 45 dBm Coupled Power Output 30 to 36 dBm Optic Wavelength 850 nm LED Indicators Carrier Detect and Fiber Optic Output Connectors DB 25 male or female on RS 232 side ST or SMA connectors on fiber side Power Supply No external power required uses power from RS 232 data and control signals Temperature Range 0 60 C 32 140 F Altitude 0 15 000 feet Humidity Up to 95 non condensing Weight 2 oz Dimensions 23 42 x 2 10 x 0 73 Documentation Number 11401198 Manual 13 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 APPENDIX CONFIGURATIONS 14 DIRECTION 3 RD Receive Data 4 RTS Request to Send 5 CTS Clear to Send 6 DSR Data Set Ready 7 SG Signal Ground To Model 1140 Data Term Ready DTR 20 8 DCD Data Carrier Detec DCE STANDARD SETTING DIRECTION 1 FG Frame Ground 2 TD Transmit Data To Model 1140 From Model 1140 To Model 1140 From Model 1140 From Model 1140 From Model 1140 Documentation Number 11401198 Manual B amp B Electronics PO2. This section describes the LED status monitors the V 52 and V 54 diagnostics and the power up process Leds 5 2 TEST MODES The Model 1140 offers two V 54 test modes to evaluate the condition of the modems and the communication link These tests can be activated physically from the front panel or via the interface NOTE V 54 test modes on the Model 1140 are available for point to point applications only 5 2 1 LOCAL ANALOG LOOP BACK LAL The Local Analog Loopback LAL test checks the operation of the local Model 1140 and is performed separately on each unit Any data sent to the local Model 1140 in this test mode will be echoed returned back to the user device For example characters typed on the keyboard of a terminal will appear on the terminal screen To perform a LAL test follow these steps 10 Documentation Number 11401198 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 A Activate LAL This be done one of two ways First by moving the front panel toggle switch DOWN to LAL Second by raising pin 18 on the interface NOTE Make sure DIP switch SW 1 8 is OFF Once LAL is activated the Model 1140 transmit output is connected to its own receiver The test LED should be lit B Verify that the data terminal equipment is operating properly and can be used for a test If a fault is indicated call a technician or replace the
3. Carrier Control Method 7 3 3 CONFIGURATION SWITCH SET 52 7 52 1 52 2 Word 7 52 3 Extended Signaling Rate 8 52 4 52 5 RTS CTS 8 52 8 V 54 Loopback Test 8 4 0 2 9 4 1 FIBER 9 4 2 RS 232 9 5 0 OPERATION essscscsvcevesctecsccsctacsivscteceees ctecaassctviascnss 10 5 2 MEST MODES iss 10 5 2 1 LOCAL ANALOG 10 5 2 2 REMOTE DIGITAL LOOPBACK 24 11 5 2 3 USING THE V 52 BER TEST INDEPENDENTLY 12 53 Sas 12 APPENDIX A SPECIFICATIONS 13 APPENDIX PIN 14 Documentation Number 11401198 Manual Table of Contents B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 1 0 WARRANTY INFORMATION B amp B Electronics warrants all Model 1140 components to be fre
4. 2 8 V 54 Loopback Test Enable To reset the V 54 circuit set switch 52 6 to the ON position then back to the OFF position 52 8 Setting Off V 54 Enable On V 54 Disable 8 Documentation Number 11401198 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 4 0 INSTALLATION Model 1140 is easy to install After configuring the DIP switches simply connect the two fiber cables and then connect the RS 232 interface Figure 5 shows the location of the fiber connections on the Model 1140 s rear panel Figure 5 Close up of ST and SMA connections 4 1 FIBER CONNECTIONS The Model 1140 short range modems are designed to work in pairs You will need one at each end of a dual fiber cable This cable connects to each Model 1140 using either an ST or SMA connector Figure 6 shows a close up of each of these connector types Alignment pin faces down Figure 6 Close up of ST and SMA connections 4 2 RS 232 CONNECTION Because the Model 1140 is designed to behave as either a DCE or a DTE device it does not need special cables to operate Always use a straight through RS 232 cable Documentation Number 11401198 Manual 9 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 5 0 Once you have configured each Model 1140 properly and connected the fiber and RS 232 cables you are ready to operate the units
5. Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105
6. E V 52 BER TEST INDEPENDENTLY The V 52 BER test can be used independently of the V 54 loopback tests This requires two operators one to initiate and monitor the test at the local Model 1140 and one at the remote Model 1140 To use the V 52 BER test by itself both operators should simultaneously follow these steps 1 Locate the 511 511 E toggle switch on the front panel of the 1140 and move it DOWN This activates the V 52 BER test mode and transmits a 511 test pattern to the other unit If any errors are present the receiving modem s red Error LED will blink sporadically NOTE For this test to function the 511 switch on both Model 1140s must be on 2 If the test indicates no errors are present move the V 52 toggle switch UP activating the 511 E test with errors present If the test is working properly the receiving modem s red Error LED will glow A successful 511 E test will confirm that the link is in place and that the Model 1140 s built in 511 generator and detector are working properly 5 3 POWER UP Once the Model 1140 is properly installed it should operate transparently as if it were a standard cable connection Since operating power is derived from the RS 232 data and control signals there is no ON OFF switch All data signals from the RS 232 interface are passed straight through 12 Documentation Number 11401198 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100
7. Not Recommended for New Installations Please contact Technical Support for more information Miniature Fiber Optic Modem With V 54 Diagnostics Model 1140 Documentation Number 11401198 B amp B Electronics Mfg Co Inc 707 Dayton Road P O Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 Internet http www bb elec com orders bb elec com support bb elec com B amp B Electronics March 1998 Documentation Number 11401198 Manual Cover Page B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 Table of Contents 1 0 WARRANTY INFORMATION 1 1 1 RADIO AND TV 1 12 2 2 0 GENERAL INFORMATION 3 2T ohne oa eas 3 2 2 DESCRIPTION A 3 3 0 CONFIGURATION 4 3 1 CONFIGURATION 4 3 2 CONFIGURATION SWITCH SET 818 5 51 1 through 51 4 Data Rate 6 51 5 S1 6 Clock 6 51 7 Asynchronous Synchronous Mode 6 51 8
8. duct has been thoroughly inspected and tested and is warranted for One Year parts and labor If any questions or problems arise during installation or use of this product please do not hesitate to contact B amp B Electronics Technical Support at 815 433 5100 2 1 FEATURES Supports async or sync communication over dual optical fibers V 52 and V 54 diagnostics Data rates to 38 4 Kbps Range to 2 miles Immune to RFI EMI noise ground loops and transient surges Easily accessible Diagnostic amp Configuration Switches Jumper selectable carrier control Requires no AC power or batteries Two easy to read status indicators Male or female DB 25 and SMA or ST connectors available 2 2 DESCRIPTION The B amp B Model 1140 miniature dual fiber optic modem brings fiber to the desktop Combining the inviolability of fiber with the troubleshooting capabilities of V 52 and V 54 diagnostics the Model 1140 is the best choice for your most critical RS 232 links The Model 1140 operates async or sync supports data rates to 38 4 Kbps and plugs directly into a workstation s RS 232 port Like all fiber optic modems the Model 1140 is inherently immune to RFI EMI noise ground loops and transient surges The carrier may be switch selected as either Continuously On or Controlled by RTS The RS 232 connector is configured as DCE Two easy to read LED indicators monitor the Error and Test modes Drawing all necessary power from the RS 232 interface t
9. e from defects and will at our option repair or replace the product should it fail within one year from the first date of shipment This warranty is limited to defects in workmanship or materials and does not cover customer damage abuse or unauthorized modification If this product fails or does not perform as warranted your sole recourse shall be repair or replacement as described above Under no condition shall B amp B Electronics be liable for any damages incurred by the use of this product These damages include but are not limited to the following lost profits lost savings and incidental or consequential damages arising from the use of or inability to use this product B amp B Electronics specifically disclaims all other warranties expressed or implied and the installation or use of this product shall be deemed an acceptance of these terms by the user 1 1 RADIO AND TV INTERFERENCE The Model 1140 generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and television reception The Model 1140 has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection from such interference in a commercial installation However there is no guarantee that interference will
10. he Model 1140 requires no AC power or batteries to operate Measuring only 3 42 x 2 10 x 73 the Model 1140 is able to fit into tight installation spaces On the RS 232 side the Model 1140 comes equipped with either a male or female DB 25 connector on the fiber side it is available with a choice of SMA or ST connectors Documentation Number 11401198 Manual 3 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 3 0 CONFIGURATION OVERVIEW The Model 1140 is fairly simple to install and is ruggedly designed for excellent reliability just set it and forget it The following instructions will help you set up and install the Model 1140 properly If you have any questions don t hesitate to call B amp B s Technical Support Department at 815 433 5100 8 5 PM CST 3 1 CONFIGURATION SWITCHES The Model 1140 uses a unique set of 16 external mini DIP switches that allow configuration to an extremely wide range of applications These 16 DIP switches are grouped in two eight switch sets and are externally accessible from the underside of the Model 1140 see Figure 1 Since all configuration DIP switches are externally accessible there is no need to open the Model 1140 s case for configuration The configuration switches allow you to select data rates clocking methods V 52 amp V54 tests word lengths extended signaling rates async or sync mode The drawings text and tables on the followi
11. hes on S2 set word length extended signaling rate RTS CTS delay and V 52 and V 54 diagnostic test 52 SUMMARY TABLE Function Word Length Word Length Factory Default Off 10 bits Off Position 52 3 Extended Signaling Rate Off 2 5 to 2 3 82 4 RTS CTS Delay On 7ms 52 5 RTS CTS Delay On 82 6 Future Use 52 7 Future Use 62 8 V 52 V 54 Tests Figure 4 Summary of DIP switch default settings for S2 52 1 52 2 Word Length Switches 52 1 52 2 set in combination to determine the word length for asynchronous data 52 1 52 2 Setting Off On 8 bits On On 9 bits Off Off 10 bits On Off 11 bits Documentation Number 11401198 Manual 7 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 52 3 Extended Signaling Rate The setting for switch S2 3 determines the range of variability the Model 1140 looks for in asynchronous data rates the actual variance from a given frequency level the Model 1140 will tolerate 52 3 Setting Off 2 5 to 1 Basic On 2 5 to 2 3 Extended S2 4 and S2 5 RTS CTS Delay The combined settings for switches S2 4 and S2 5 determine the amount of delay between the time the Model 1140 sees RTS and when it sends CTS Options are no delay 7 ms and 53 ms 52 4 82 5 Setting On On 7 mS Off On 53 mS On Off No delay Off Off No delay S
12. ng pages describe all switch locations positions and Configuration Switches oo TA 1 52 rn WHA GOG 4 Figure 1 Model 1140 Configuration Switches External Position 4 Documentation Number 11401198 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 Model 1140 has two sets of eight switches yielding 16 total DIP switches The three sets will be referred to as S1 and S2 As Figure 2 shows the orientation of all DIP switches is the same with respect to ON and OFF positions ON A Toes ere o Seep eC OFF Figure 2 Close up of DIP switches showing ON and OFF positions 3 2 CONFIGURATION SWITCH SET S1 DIP switches 51 set data rate clock source async sync mode and carrier control method The default settings are summarized in the table below 51 SUMMARY TABLE Position Function Factory Default Data Rate Data Rate Data Rate 9 600 bps Data Rate Clock Source Internal Clock Source n Async Sync Carrier Control Constantly On Figure 3 Summary of DIP switch default settings for set S1 Documentation Number 11401198 Manual 5 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 51 1 through 51 4 Da
13. not occur in a particular installation If the Model 1140 does cause interference to radio or television reception which can be determined by disconnecting the RS 232 interface the user is encouraged to try to correct the interference by one or more of the following measures moving the computing equipment away from the receiver re orienting the receiving antenna and or plugging the receiving equipment into a different AC outlet such that the computing equipment and receiver are on different branches Documentation Number 11401198 Manual 1 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 1 2 SERVICE All warranty and non warranty repairs must be returned freight prepaid and insured to B amp B Electronics All returns must have a Return Materials Authorization number on the outside of the shipping container This number may be obtained from B amp B Electronics Customer Service at 815 433 5100 Packages received without an RMA number will not be accepted B amp B Electronics technical staff is also available to answer any questions that might arise concerning the installation or use of your Model 1140 Technical Service hours 8AM to 5PM CST Monday through Friday 2 Documentation Number 11401198 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 2 0 GENERAL INFORMATION Thank you for your purchase from B amp B Electronics This pro
14. ta Rate Setting Switches 51 1 through 51 4 are set in combination to determine the asynchronous and synchronous data rate for the Model 1140 81 1 1 2 51 3 1 4 Setting On On On On 1 2 Kbps Off On On On 1 8 Kbps On Off On On 2 4 Kbps Off Off On On 3 6 Kbps On On Off On 4 8 Kbps Off On Off On 7 2 Kbps On Off Off On 9 6 Kbps Off Off Off On 14 4 Kbps On On On Off 19 2 Kbps Off On On Off 28 8 Kbps On On Off Off 38 4 Kbps Off On Off Off 57 6 Kbps 51 5 51 6 Clock Source Switches 51 5 51 6 are set in combination to determine the transmit clock source for the Model 1140 51 5 51 6 Setting Internal transmit clock Off On Receive recover clock On Off External transmit clock 51 7 Asynchronous Synchronous Mode The setting for switch S1 7 determines whether the Model 1140 is in asynchronous or synchronous operating mode 51 7 Setting On Asynchronous Off Synchronous 6 Documentation Number 11401198 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 51 8 Carrier Control Method The setting for switch S1 8 determines whether the carrier is constantly on or controlled by RTS This setting allows for operation in switched carrier rnultipoint and or hardware handshaking applications 51 8 Setting Off Constantly On On Switched Carrier 3 3 CONFIGURATION SWITCH SET S2 The DIP switc
15. unit C Perform a BER bit error rate test on each unit If the BER test equipment indicates no faults but the data terminal indicates a fault follow the manufacturer s checkout procedures for the data terminal Also check the interface cable between the terminal and the Model 1140 5 2 2 REMOTE DIGITAL LOOPBACK RDL The Remote Digital Loopback RDL test checks the performance of both the local and remote Model 1140s and the communication link between them Any characters sent to the remote Model 1140 in this test mode will be returned back to the originating device For example characters typed on the keyboard of the local terminal will appear on the local terminal screen after having been passed to the remote Model 1140 and looped back To perform an RDL test follow these steps A Activate RDL This may be done in two ways first by moving the front panel toggle switch UP to RDL Second by raising pin 21 on the interface NOTE Make sure SW1 8 is OFF B Perform a BER bit error rate test on the system C If the BER test equipment indicates a fault and the Local Analog Loopback test was successful for both Model 1140s you may have a problem with the twisted pair line between the modems You should then check the fiber line for proper connections and continuity Documentation Number 11401198 Manual 11 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 5 2 3 USING TH
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