Paradyne 3821PLUS manual Install the NIM, Cable the NIM, Procedure

COMSPHERE 3821Plus Modem

			STANDOFF
		P24
P26	P25	P20 P19	P23
J2	P22	J1	P21

TO P23

OR P25

TO P24

OR P26

Figure 2-1. Installing the NIM

NIM COVER

NETWORK INTERFACE MODULE (NIM)

495-14854

Install the NIM

A NIM can be installed on the left or right side of the back of the 3000 Series Carrier.

"Procedure

1.If you are installing a NIM on the right side of the carrier, press it onto the connectors P24 and P23. If you are installing a NIM on the left side of the carrier, press it onto the connectors P26 and P25.

2.Fasten the NIM to the carrier with the four standoffs provided. See Figure 2-1.

3.Position the NIM cover over the NIM.

4.Fasten the NIM cover in place with the four screws provided. See Figure 2-1.

Cable the NIM

Connect one end of the short ribbon cable to the 50-pin connector at the bottom of the NIM. Connect the other end to P21 (on the right side of the carrier) or P22 (on the left side of the carrier). See Figure 2-2.

Connect a network interface cable to the 50-pin connector in the middle of the NIM. Connect the other end to the dial or leased-line interface. This may be an RJ11 gang box or a 66A-punchdown block. Wiring for the 50-pin NIM cable is shown in Appendix E.

A 2-wire leased line connection to a JM8 interface requires a 6-position to 8-position crossover cable. See Appendix E.

NETWORK INTERFACE

CABLE

SHORT

RIBBON

CABLE

P21 or P22

495-14798

Figure 2-2. Cabling the NIM

2-2 January 1999 3821-A2-GB20-40