36 Chapter 2 Telephony hardware
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DIP switches

The six DIP switches that you use to set the DS30 bus blocks and offsets are found either on the
bottom of the module or on the rear, behind the power con nector. Figure 14 shows the possible
locations of the DIP switches on the modules.
For more information about setting DIP switches, refer to Chapter 8, “Installing media bay
modules,” on page 107.
Figu re 14 DIP switch positions on the modules
The Global Analog Trunk Module (GAT M), intr oduced in BCM 3.5, and the (Global) Anal og
Station Modu le (ASM8+) , intr oduced with BCM 3.6, have a second set of DIP switches that can
be set to a specific c ountry setting to set to allow automatic firmware upgrades to the module,
based on the country profile chosen for the system during startup.
Wa rning: Media bay module wire shorts
The wires that connect the media bay module daughter board to the module can become
pinched between the module and the BCM1000 media bay if you insert t he modules o ff
the s trai ght or wi th to o much forc e. Thi s will cause a sh ort in the equipment and co uld stop
the Business Communications Manager from restarting.
Note: Some of the new modules, such as the DECT module, do not have this wiring
configuration. However, inserting the module carefully and corr ectly is still important to
securely connect the power connector on the module to the backplane of the media bay.
Rear of module
DIP switches
Underside of module
Top of module