Technical data

28 Chapter 3 Hardware installation

NN40170-308

To verify the MBM switches

1 Verify that the 6-pin dip switch is set to on for all MBMs that have the 6-pin dip switch.

2 To install a global analog trunk module (GATM):

a For the dip switches on the left side, at the rear of the module, set all the switches to on.

b For the dip switches on the right side, at the rear of the module (country profile switches),

set all the switches to off. The GATM automatically downloads the country profiles.

3 To install a global analog station module 8 (GASM8):

a For the dip switches on the left side, at the rear of the module, set all the switches to on.

b For the dip switches on the right side, at the rear of the module, set the switches according

to the table GASM8 dip switch settings (switches 1–3) on page 28 and the table GASM8

regional dip switch settings (switches 4–8) on page 28.

To install an MBM in an expansion unit

1 Attach one end of a grounding strap to your wrist and the other end to a grounded metal

surface.

2 With the face of the MBM toward you, insert the MBM into the expansion unit.

Table 10 GASM8 dip switch settings (switches 1–3)

Switch Description Setting

Switch 1 Firmware download capability OFF—Standard mode (firmware downloading not

supported)

ON—Enhanced mode (firmware downloading supported)

Switch 2 To download the firmware from

the BCM50 (for enhanced

mode only)

OFF—if you want the GASM8 to download the firmware

when the firmware version in the BCM50 is different than the

version in the GASM8 (default)

ON—if you want the GASM8 to download the firmware in

the event of a BCM50 cold start

Switch 3 Enable/disable echo

cancellation

OFF—Enables echo cancellation (default)

ON—Disables echo cancellation

Table 11 GASM8 regional dip switch settings (switches 4–8)

Switches 4 to 8 select the region for the GASM8 as follows:

Switch 4Switch 5Switch 6Switch 7Switch 8

North America OFF OFF OFF OFF OFF

United Kingdom OFF OFF OFF OFF ON

Australia OFF OFF OFF ON OFF

Poland OFF OFF OFF ON ON

Note: When switch 1 is ON (Enhanced mode), an available regional profile will be downloaded and override

the regional dip switch settings.

2 minutes