Connecting cables to the model 3910 modems – Digicom COMSPHERE 3910 User Manual
Page 27

Modem Installation
2-3
3910-A2-GN32-40
September 1998
Connecting Cables to the Model 3910 Modems
Figure 2-1 shows how Model 3910 modems are connected to certain TELCO jack types using the
appropriate cables. For pin assignments, refer to Appendix C, Pin Assignments.
8-POSITION,
8-CONDUCTOR
PLUG FOR
LEASED-LINE
NETWORK
OPERATION
6-POSITION,
4-CONDUCTOR
PLUG FOR
PERMISSIVE
DIAL NETWORK
OPERATION
DB-25-P
CONNECTOR
FOR DATA
TERMINAL
EQUIPMENT
OPERATION
SUB-MINIATURE,
4-CONDUCTOR
PLUG FOR
NETWORK
MANAGEMENT
OPERATION
POWER
SUPPLY
DTE 2
DTE 3
DTE 4
DTE 1
LEASED DIAL
NMS
PWR
ON OFF
NOTE:
THE DIAL JACK IS ALSO USED
FOR 2-WIRE LEASED BACKUP.
Figure 2-1. Model 3910 Rear Panel and Power Supply
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