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Documentation Number 11401198 Manual

 

B&B Electronics  --  PO Box 1040  --  Ottawa, IL  61350 

PH (815) 433-5100  --  FAX (815) 433-5105

 

S1-1 through S1-4: Data Rate Setting 

Switches S1-1 through S1-4 are set in combination to determine 

the asynchronous and synchronous data rate for the Model 1140. 

 

S1-1 S 

1-2 S1-3  S1-4  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 

 
 

S1-5 and S1-6: Clock Source 

Switches S1-5 and S1-6 are set in combination to determine the 

transmit clock source for the Model 1140. 

 

 SI-5 S1-6 Setting 
 

On On Internal 

transmit 

clock 

 

Off 

On 

Receive recover clock 

 

On 

Off 

External transmit clock 

 
 

S1-7: Asynchronous/Synchronous Mode 

The setting for switch S1-7 determines whether the Model 1140 

is in asynchronous or synchronous operating mode. 

 
S1-7   Setting 
On  

Asynchronous 

 Off 

 Synchronous 

Содержание 1140

Страница 1: ...ith V 54 Diagnostics Model 1140 Documentation Number 11401198 B 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 ord...

Страница 2: ...ough S1 4 Data Rate Setting 6 S1 5 and S1 6 Clock Source 6 S1 7 Asynchronous Synchronous Mode 6 S1 8 Carrier Control Method 7 3 3 CONFIGURATION SWITCH SET S2 7 S2 1 and S2 2 Word Length 7 S2 3 Extende...

Страница 3: ...lation 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 u...

Страница 4: ...must have a Return Materials Authorization number on the outside of the shipping container This number may be obtained from B B Electronics Customer Service at 815 433 5100 Packages received without...

Страница 5: ...DESCRIPTION The B 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...

Страница 6: ...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 acc...

Страница 7: ...d 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 Figure 2 Close up of DIP switches showing ON and OFF positions 3 2 CONFIGURATIO...

Страница 8: ...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 S1 5 and S1 6 Clock Sou...

Страница 9: ...ltipoint and or hardware handshaking applications S1 8 Setting Off Constantly On On Switched Carrier 3 3 CONFIGURATION SWITCH SET S2 The DIP switches on S2 set word length extended signaling rate RTS...

Страница 10: ...1140 will tolerate S2 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 t...

Страница 11: ...r 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...

Страница 12: ...uate 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 p...

Страница 13: ...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 betwee...

Страница 14: ...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 error...

Страница 15: ...ntinuous 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 Opt...

Страница 16: ...14 Documentation Number 11401198 Manual B B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 APPENDIX B PIN CONFIGURATIONS...

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