Model 3910 Rear Panel And Power Supply - Paradyne COMSPHERE 3910 Installation And Operation Manual

The rear panel of the Model 3910 modem (Figure 2-1) has the following switches and connectors:
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.
8-POSITION,
8-CONDUCTOR
LEASED-LINE
OPERATION
3910-A2-GN32-30
An ON/OFF power switch.
An 8-pin DIN type power receptacle (PWR) for the dc power supply.
An 8-pin modular keyed jack (LEASED) for 4-wire/2-wire leased lines.
An 8-pin modular keyed jack (DIAL) for backup lines (2-wire dial or 2-wire leased).
A 4-pin modular jack for the (NMS) network management system connection.
A 25-pin DB-25-S receptacle for the DTE interface.
DTE 2
LEASED DIAL
PLUG FOR
DB-25-P
CONNECTOR
NETWORK
FOR DATA
TERMINAL
EQUIPMENT
OPERATION
6-POSITION,
4-CONDUCTOR
PLUG FOR
PERMISSIVE
DIAL NETWORK
OPERATION
NOTE:
THE DIAL JACK IS ALSO USED
FOR 2-WIRE LEASED BACKUP.
Figure 2-1. Model 3910 Rear Panel and Power Supply
November 1996
DTE 3 DTE 4
DTE 1 NMS PWR
SUB-MINIATURE,
4-CONDUCTOR
PLUG FOR
NETWORK
MANAGEMENT
OPERATION
POWER
SUPPLY
Modem Installation
ON OFF
2-3