Modem Installation
2-33910-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 1LEASED 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