Appendix B Media bay module combinations 253

Installation and Maintenance Guide

Set D N s and po r t n um b e r s

The media bay module, based on the switch settings of the module, defi nes which DNs and port

numbers can be populated with telephones. If you have changed the default start DN for your

system, use Table 6 to identify the DNs and ports for your sets. I f you are using the default start

DN (211), a completed chart is provided under Table 37 on page 143 and Table 38 on page 144.

Table 6 Cross referencing ports and DNs

Pins Port* DS 30 bus
02 DNs DS 30 bus
03 DNs DS 30 bus
04 DNs DS 30 bus
05 DNs DS 30 bus
06 DNs DS 30 bus
07 DNs
26/1 X01
27/2 X02
28/3 X03
29/4 X04
30/5 X05
31/6 X06
32/7 X07
33/8 X08
34/9 X09
35/10 X10
36/11 X11
37/12 X12
38/13 X13
39/14 X14
40/15 X15
41/16 X16
Second-level DNs (DS 30 bus set to Full Doubl e Densit y)
Pins Port* DS 30 bus
02 DNs DS 30 bus
03 DNs DS 30 bus
04 DNs DS 30 bus
05 DNs DS 30 bus
06 DNs** DS 30 bus
07 DNs**
26/1 X17
27/2 X18
28/3 X19
29/4 X20
30/5 X21
31/6 X22
32/7 X23
33/8 X24
34/9 X25
35/10 X26
36/11 X27
37/12 X28
38/13 X29
39/14 X30
40/15 X31
41/16 X32