Miniature Fiber Optic Modem With V.54 Diagnostics Model 1140
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Miniature Fiber Optic Modem With V.54 Diagnostics
Model 1140
Documentation Number 11401198
Electronics Mfg. Inc.
Dayton Road P.O. 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
Internet: http://www.bb-elec.com orders@bb-elec.com support@bb.elec.com
Electronics March 1998
Documentation Number 11401198 Manual
Cover Page
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
Table Contents
WARRANTY INFORMATION
RADIO INTERFERENCE.1 SERVICE.2
GENERAL INFORMATION
FEATURES DESCRIPTION.3
CONFIGURATION OVERVIEW.
CONFIGURATION SWITCHES.4 CONFIGURATION SWITCH "S1" S1-1 through S1-4: Data Rate Setting.6 S1-5 S1-6: Clock Source S1-7: Asynchronous/Synchronous Mode S1-8: Carrier Control Method CONFIGURATION SWITCH "S2" S2-1 S2-2: Word Length.7 S2-3: Extended Signaling Rate S2-4 S2-5: RTS/CTS Delay.8 S2-8: V.54 Loopback Test Enable.8
INSTALLATION
FIBER CONNECTIONS RS-232 CONNECTION.9
OPERATION.
TEST MODES.10 5.2.1 LOCAL ANALOG LOOP BACK (LAL) 5.2.2 REMOTE DIGITAL LOOPBACK (RDL).11 5.2.3 USING V.52 TEST INDEPENDENTLY.12 POWER
APPENDIX SPECIFICATIONS APPENDIX CONFIGURATIONS.
Documentation Number 11401198 Manual
Table Contents
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
WARRANTY INFORMATION
Electronics warrants Model 1140 components free from defects, will, option, repair replace product should fail within year from first date shipment. This warranty limited defects workmanship materials, does cover customer damage, abuse unauthorized modification. this product fails does perform warranted, your sole recourse shall repair replacement described above. Under condition shall Electronics liable damages incurred this product. These damages include, limited following: lost profits, lost savings incidental consequential damages arising from inability this product. Electronics specifically disclaims other warranties, expressed implied, installation this product shall deemed acceptance these terms user. RADIO INTERFERENCE Model 1140 generates uses radio frequency energy, installed used properly-that strict accordance with manufacturer's instructions-may cause interference radio television reception. Model 1140 been tested found comply with limits Class computing device accordance with specifications Subpart Part rules, which designed provide reasonable protection from such interference commercial installation. However, there guarantee that interference will occur particular installation. Model 1140 does cause interference radio television reception, which determined disconnecting RS-232 interface, user encouraged correct interference more following measures: moving computing equipment away from receiver, re-orienting receiving antenna and/or plugging receiving equipment into different outlet (such that computing equipment receiver different branches).
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815 433-5100 (815) 433-5105
SERVICE warranty non-warranty repairs must returned freight prepaid insured Electronics. returns must have Return Materials Authorization number outside shipping container. This number obtained from Electronics Customer Service (815) 433-5100. Packages received without number will accepted. Electronics' technical staff also available answer questions that might arise concerning installation your Model 1140. Technical Service hours: CST, Monday through Friday.
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
GENERAL INFORMATION
Thank your purchase from Electronics. This product been thoroughly inspected tested warranted Year parts labor. questions problems arise during installation this product, please hesitate contact Electronics Technical Support (815) 433-5100. FEATURES Supports async. sync. communication over dual optical fibers V.52 V.54 diagnostics Data rates 38.4 Kbps Range miles Immune RFI/EMI noise, ground loops transient surges Easily accessible Diagnostic Configuration Switches Jumper-selectable carrier control Requires power batteries easy-to-read status indicators Male female DB-25 connectors available
DESCRIPTION Model 1140 miniature dual fiber optic modem brings fiber desktop. Combining inviolability fiber with troubleshooting capabilities V.52 V.54 diagnostics, Model 1140 best choice your most critical RS-232 links. Model 1140 operates async. sync., supports data rates 38.4 Kbps plugs directly into workstation's RS-232 port. Like fiber optic modems, Model 1140 inherently immune RFI/EMI noise, ground loops transient surges. carrier switch selected either "Continuously "Controlled RTS". RS-232 connector configured DCE. easy-to-read indicators monitor Error Test modes. Drawing necessary power from RS-232 interface, Model 1140 requires power batteries operate. Measuring only 3.42" 2.10" .73", Model 1140 able into tight installation spaces. RS-232 side, Model 1140 comes equipped with either male female DB-25 connector; fiber side available with choice connectors.
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815 433-5100 (815) 433-5105
CONFIGURATION OVERVIEW
Model 1140 fairly simple install ruggedly designed excellent reliability: just forget following instructions will help install Model 1140 properly. have questions, don't hesitate call B&B's Technical Support Department (815) 433-5100 (8-5 CST). CONFIGURATION SWITCHES Model 1140 uses unique external mini switches that allow configuration extremely wide range applications. These switches grouped eight-switch sets, externally accessible from underside Model 1140 (see Figure Since configuration switches externally accessible, there need open Model 1140's case configuration. configuration switches allow select data rates, clocking methods, V.52 tests, word lengths, extended signaling rates, async. sync. mode. drawings, text tables following pages describe switch locations, positions functions.
Figure Model 1140 Configuration Switches External Position
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
Model 1140 sets eight switches, yielding total switches. three sets will referred Figure shows, orientation switches same with respect "ON" "OFF" positions.
Figure Close-up switches showing "ON" "OFF" positions
CONFIGURATION SWITCH "S1" switches data rate, clock source, async./sync. mode carrier control method. default settings summarized table below.
Figure Summary switch default settings
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
S1-1 through S1-4: Data Rate Setting Switches S1-1 through S1-4 combination determine asynchronous synchronous data rate Model 1140. S1-1 S1-3 S1-4 Setting Kbps Kbps Kbps Kbps Kbps Kbps Kbps 14.4 Kbps 19.2 Kbps 28.8 Kbps 38.4 Kbps 57.6 Kbps
S1-5 S1-6: Clock Source Switches S1-5 S1-6 combination determine transmit clock source Model 1140. SI-5 S1-6 Setting Internal transmit clock Receive recover clock External transmit clock
S1-7: Asynchronous/Synchronous Mode setting switch S1-7 determines whether Model 1140 asynchronous synchronous operating mode. S1-7 Setting Asynchronous Synchronous
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
S1-8: Carrier Control Method setting switch S1-8 determines whether carrier "constantly "controlled RTS". This setting allows operation switched carrier, rnultipoint and/or hardware handshaking applications. S1-8 Setting Constantly Switched Carrier
CONFIGURATION SWITCH "S2" switches word length, extended signaling rate, RTS/CTS delay V.52 V.54 diagnostic test.
Figure Summary switch default settings
S2-1 S2-2: Word Length Switches S2-1 S2-2 combination determine word length asynchronous data. S2-2 Setting bits bits bits bits
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
S2-3: Extended Signaling Rate setting switch S2-3 determines range variability Model 1140 "looks for" asynchronous data rates (i.e., actual variance from given frequency level Model 1140 will tolerate). S2-3 Setting -2.5% Basic -2.5% +2.3% Extended
S2-4 S2-5: RTS/CTS Delay combined settings switches S2-4 S2-5 determine amount delay between time Model 1140 "sees" when sends CTS. Options delay, S2-4 S2-5 Setting delay delay
S2-8: V.54 Loopback Test Enable reset V.54 circuit, switch S2-6 "ON" position, then back "OFF" position. S2-8 Setting V.54 Enable V.54 Disable
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
INSTALLATION
Model 1140 easy install. After configuring switches, simply connect fiber cables then connect RS-232 interface. Figure shows location fiber connections Model 1140's rear panel.
Figure Close-up connections
FIBER CONNECTIONS Model 1140 short range modems designed work pairs. will need each dual fiber cable. This cable connects each Model 1140 using either connector. Figure shows close each these connector types.
Figure Close-up connections
RS-232 CONNECTION Because Model 1140 designed behave either device, does need special cables operate. Always straight-through RS-232 cable.
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
OPERATION
Once have configured each Model 1140 properly connected fiber RS-232 cables, ready operate units. This section describes status monitors, V.52 V.54 diagnostics power process.
TEST MODES Model 1140 offers V.54 test modes evaluate condition modems communication link. These tests activated physically from front panel, interface. NOTE: V.54 test modes Model 1140 available point-to-point applications only. 5.2.1 LOCAL ANALOG LOOP BACK (LAL) Local Analog Loopback (LAL) test checks operation local Model 1140, performed separately each unit. data sent local Model 1140 this test mode will echoed (returned) back user device. example, characters typed keyboard terminal will appear terminal screen. perform test, follow these steps:
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
Activate LAL. This done ways: First, moving front panel toggle switch DOWN "LAL". Second, raising interface. (NOTE: Make sure switch SW1-8 OFF). Once activated, Model 1140 transmit output connected receiver. "test" should lit. Verify that data terminal equipment operating properly used test. fault indicated, call technician replace unit. Perform (bit error rate) test each unit. test equipment indicates faults, data terminal indicates fault, follow manufacturer's checkout procedures data terminal. Also, check interface cable between terminal Model 1140. 5.2.2 REMOTE DIGITAL LOOPBACK (RDL) Remote Digital Loopback (RDL) test checks performance both local remote Model 1140s, communication link between them. characters sent remote Model 1140 this test mode will returned back originating device. example, characters typed keyboard local terminal will appear local terminal screen after having been passed remote Model 1140 looped back. perform test, follow these steps: Activate RDL. This done ways: first, moving front panel toggle switch "RDL". Second, raising interface. (NOTE: Make sure SW1-8 OFF). Perform (bit error rate) test system. test equipment indicates fault, Local Analog Loopback test successful both Model 1140s, have problem with twisted pair line between modems. should then check fiber line proper connections continuity.
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
5.2.3 USING V.52 TEST INDEPENDENTLY V.52 test used independently V.54 loopback tests. This requires operators: initiate monitor test local Model 1140, remote Model 1140. V.52 test itself, both operators should simultaneously follow these steps: Locate "511/511 toggle switch front panel 1140 move DOWN. This activates V.52 test mode transmits "511" test pattern other unit. errors present, receiving modem's "Error" will blink sporadically. NOTE: this test function, "511" switch both Model 1140s must test indicates errors present, move V.52 toggle switch activating "511/E" test with errors present. test working properly, receiving modem's "Error" will glow. successful "511/E" test will confirm that link place, that Model 1140's built-in "511" generator detector working properly. POWER Once Model 1140 properly installed, should operate transparently-as were standard cable connection. Since operating power derived from RS-232 data control signals; there "ON/OFF" switch. data signals from RS-232 interface passed straight through.
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
APPENDIX SPECIFICATIONS
Transmission Line: Dual optical cable Transmission Mode: Async. sync., half full duplex Interfaces: RS-232, CCITT V.24 Data Rates: 38.4 Kbps Distance: miles over continuous fiber RTS/CTS Delay: Switch-selectable: delay, 79.5 Receiver Sensitivity: Coupled Power Output: Optic Wavelength: Indicators: Carrier Detect Fiber Optic Output Connectors: DB-25 male female RS-232 side; connectors fiber side Power Supply: external power required; uses power from RS-232 data control signals Temperature Range: 0-60°C (32-140°F) Altitude: 0-15,000 feet Humidity: non-condensing Weight: Dimensions: 23.42" 2.10" 0.73"
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
APPENDIX CONFIGURATIONS
Documentation Number 11401198 Manual
Electronics 1040 Ottawa, 61350 (815) 433-5100 (815) 433-5105
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