User's Manual

130 Chapter 8 Installing a media bay module (MBM)
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DSM switch settings
There are different types of DSMs:
• DSM16/DSM16+ have one connector, which connects to 16 lines (telephones). These
modules require a full DS30 number each (single density) or half a bus (double density).
• DSM32/DSM32+ have two connectors, each of which connects to 16 lines (telephones).
These modules require two full, consecutive DS30 numbers (single density) or one full bus
(double density).
This section includes these charts:
• “DSM16/DSM32 single-density switch settings (upgraded system)” on page 130
• “DSM16+ and DSM 32+ double density switch settings (upgraded system)” on page 131
• “DSM16/DSM 32 single density switch settings (new system)” on page 132
• “DSM16+ and DSM 32+ double density switch settings (new system)” on page 132
DSM16/DSM32 single-density switch settings (upgraded system)
The following table shows the switch settings for DSM modules deployed as single density on a
system. For single-density modules, you set the first DS30 number on the DIP switches and the
system assigns the next DS30 bus. Note in Table 42 how the DSM32 module spans two DS30 bus
numbers and that there are only five possible DS30 settings for the DIP switches.
Note: Switch settings not shown in this table will default to the North American
profile.
Table 41 ASM8+ country select DIP switch settings
Manual settings
(pre-BCM 3.6 systems)
Country profile
Manual settings
(BCM 3.6 and newer systems)
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
off off off off off off off off North America on off off off off off off off
off off off off off off off
on
United Kingdom on off off off off off off on
Note: DSM modules deployed with 2.5 systems are all single density and cannot be set to
double density. The DSM 16+ and DSM 32+ modules can be set to either density.