Nortel Networks BCM50 manual To set Gasm dip switches, To set Gatm dip switches

94Chapter 8 Installing an expansion unit

To set GASM dip switches

1For the dip switches on the left side, at the rear of the module, set all the switches to on.

2For the dip switches on the right side, at the rear of the module, set the switches according to Table 17 and Table 18.

Table 17 GASM dip switch settings (switch 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	Set when the firmware is	OFF — if you want the GASM to download the firmware
	downloaded from the BCM50	when the firmware version in the BCM50 is different than the
	(for enhanced mode only)	version in the GASM (default)
		ON — if you want the GASM to download the firmware
		whenever there is a cold start of the BCM50
Switch 3	Enable/disable echo	OFF — Enables echo cancellation (default)
	cancellation	ON — Disables echo cancellation

Table 18 GASM dip switch settings (switch 4–8)

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

	Switch 4	Switch 5	Switch 6	Switch 7	Switch 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

3After you have set the switches, proceed to “Installing a media bay module in an expansion unit” on page 95.

To set GATM dip switches

1For the dip switches on the left side, at the rear of the module, set all the switches to on.

2For the dip switches on the right side, at the rear of the module (country profile switches), set all of the switches to off. The GATM downloads the country profiles automatically.

3After you have set the switches, proceed to “Installing a media bay module in an expansion unit” on page 95.

N0027152 01