Chapter 7 Setting media bay module DIP switches 93
Installation and Maintenance Guide
Line and extension numbers for specific modules

The switch settings on the media bay module determine the line numbers and extension numbers

the modules use. The tables in this section show the correspondence between DS30 bus numbers,

switch settings, and the line/extension numbers for each type of module. The DS30 bus and switch

settings correspond with Table 11 on page 90.

DTM switch settings

Although DTMs have more than 16 lines, they occupy only one DS30 bus per DTM.

Table 13 shows the switch settings for each DS30 bus, and the resulting line assignments.

Table 14 shows the switch settings for each DS30 bus, and the resulting line assignments.

Tip: Create a label with the DS30 bus and DIP switch settings, and stick it to the front of

the module to provide ease of reference for maintenance activities.

Table 13 DTM switch settings (T1)
Select
DS30
bus #
Enter these switch settings To assign
these lines
Select
DS30
bus #
Enter these switch settings To assign
these lines
123456 123456
02 on on on on on on 211-234 05 on on on on 121-144
off off
03 on on on on on 181-204 06 on on on on on 91-114
off off
04 on on on on on 151-174 071on on on on 61-84
off off off
1 If your system is configured with a 3/5 DS30 split, DS30 07 is not available.
Table 14 DTM switch settings (North American PRI)
Select
DS30
bus #
Enter these switch settings To assign
these
lines
Select
DS30
bus #
Enter these switch settings To assign
these
lines
123456 12 3 4 56
02 on on on on on on 211-233 05 on on on on 121-143
off off
03 on on on on on 181-203 06 on on on on on 91-113
off off
04 on on on on on 151-173 071on on on on 61-83
off off off
1 If your system is configured with a 3/5 DS30 split, DS30 07 is not available.