User's Manual

Appendix D 4x16 wiring charts 343
BCM200/400 4.0 Installation and Maintenance Guide
Appendix D
4x16 wiring charts
You can connect up to 4 analog telephone lines and up to 16 digital telephones to the 4x16 media
bay module (MBM).
The analog telephones lines are connected to the 4x16 MBM through the RJ-11 jacks (labeled 1 to
4) on the front of the MBM (see Figure 192). Do not connect analog telephone lines to the
auxiliary jack on the front of the MBM.
The digital telephones, such as the Business Series Telephones, are connected to the RJ-21
connector on the front of the 4x16 MBM.
Figure 192 4x16 MBM connectors
Table 89 lists the wiring details for the RJ-11 jacks on the 4x16 MBM. This wiring applies to the
numbered ports and the auxiliary ports.
Table 89 4x16 RJ-11 port wiring
Pin Signal
1 No connection
2 No connection
3Ring
4Tip
5 No connection
6 No connection
RJ-21 pin-out
RJ-21 connector
4x16
6 5 4 3 2 1
RJ-11 pin-out
RJ-11 jacks