Dsm16 And Dsm32 Wiring Charts - Nortel BCM200 Installation And Maintenance Manual

Appendix E

DSM16 and DSM32 wiring charts

Digital telephones, such as the Business Series Telephones, are connected to a digital station
module (DSM16 or DSM32) through the RJ-21 connectors on the front of the media bay modules
(MBM). The DSM16 has a single RJ-21 connector and the DSM32 has two RJ-21 connectors (see
Figure 194).
Figure 194 DSM16 and DSM32 RJ-21 connectors
RJ-21 connector
Table 90 lists the wiring details for the RJ-21 connectors on the DSM16 and DSM32.
Table 90 DSM16 and DSM32 RJ-21 connector wiring (Sheet 1 of 2)
Set Pin Connection
1 26 Tip
1 Ring
2 27 Tip
2 Ring
3 28 Tip
3 Ring
4 29 Tip
4 Ring
5 30 Tip
5 Ring
DSM16
White-Blue
Blue-White
White-Orange
Orange-White
White-Green
Green-White
White-Brown
Brown-White
White-Slate
Slate-White
Appendix E DSM16 and DSM32 wiring charts
RJ-21 pin-out
Wire color
BCM200/400 4.0 Installation and Maintenance Guide
DSM32
RJ-21 connectors
347