Paradyne 3000 manual NIM Installation, Network Interface Module

COMSPHERE 3000 Series Carrier

NIM Installation

To install the NIM providing the dial interface for the dial backup devices (DBMs), dial/lease modems, or the switched 56 kbps network interface for either the 2-wire or 4-wire Switched 56 DBM:

.Procedure

1.For Slots 1± 8, seat the NIM on connectors P23 and P24 on the rear of the carrier (Figure 3-31).

2.Use the four screws provided with the module to secure it to the carrier.

3.Connect a 50-pin mass termination line cable to the module. Secure the cable with the cable tie that is provided.

4.For the dial interface, connect the line side of the cable to the dial circuit terminations assigned to the DBMs and dial/lease modems in carrier Slots 1± 8 (Figure 3-32).

For the switched 56 kbps network interface, connect the line side of the cable to the switched 56 kbps circuit terminations assigned to the Switched 56 DBM in carrier Slots 1± 8 (Figure 3-32).

If the NIM is equipped with two 6-position Service Line modular connectors (for use with dial/lease modems), connect the line side of the cable to the proper dial line or NIM modular connector (refer to Figure 3-31). The modular plugs are labeled 1 through 8, and they correspond to the devices in those carrier slot positions. For example, modular plug 1 is wired for the device in Slot 1; for Slots 9 through 16, modular plug 1 is wired for the device in Slot 9.

5.If any DBMs, DBM-Vs, DBM-Ss, DBM-Ds, or dial/lease modems are to be installed in

Slots 9 ±16, repeat Steps 1 through 4 for a second NIM, seating it on connectors P25 and P26 on the rear of the carrier.

Figure 3-31. Network Interface Module

3-44 December 1994 3000-A2-GA31-80