Chapter 4 Installing the R2MFC MBM 41

Figure 13 How to remove the expansion unit front bezel

BCM expansion unit

1. Push against the bottom

2. Pull out from the top

MBM latches

5Grasp the top and bottom edges of the R2MFC MBM. Remove the R2MFC MBM from the BCM expansion unit. Place the R2MFC MBM in a clean, safe, and static-free area.

Wiring an R2MFC MBM

This section describes how to wire the cables that connect to the R2MFC MBM. The R2MFC MBM is connected to the CO by either RJ48C or BNC connectors. The BNC connector is the default interface. The default connector can be changed either by setting the country - selection DIP switches or by creating a custom country code profile through the CLI. See “Configuring the MFCR2 (external) link” on page 49 for information on how to change the active interface.

If the 75 Ω BNC connector pair is used, two coax cables are required for transmit and receive.

If the 120 Ω RJ-48 connector is used, the cable pinout must be set up as follows:

Figure 14 R2MFC MBM RJ48 wiring array

R2MFC MBM

 

 

 

 

 

 

To network

To plug

 

connector

 

 

 

 

Receive from

1- Rtip

 

 

 

network

2

- Rring

 

 

RJ48 jack

 

 

 

 

3

- Rshield

 

 

 

Transmit to network

4-Ttip

 

 

 

 

5-Tring

 

 

 

 

6-Tshield

 

 

 

 

 

 

 

 

 

 

 

 

 

R2MFC Media Bay Module Installation and Configuration Guide

Page 41
Image 41
Nortel Networks manual Wiring an R2MFC MBM, How to remove the expansion unit front bezel