Nortel Networks BCM50 - Manual (Page 96)

96 Chapter 8 Installing an expansion unit
NN40020-302
To set G4x16 or G8x16 dip switches
1 Set the Module Select dip switches to on (up). See the figure G4x16/G8x16 dip switch
location on page 96.
2 Set the Mode/Country Select dip switches to off (down); this setting allows the MBM to
automatically download the country profile settings.
Figure 47 G4x16/G8x16 dip switch location
For information about line and DN settings, see the table G4x16/G8x16 lines and DNs settings
on page 96.
To set GASM dip switches
1 For the dip switches on the left side at the rear of the module, set all switches to on.
2 For the dip switches on the right side at the rear of the module, set the switches according to
the table
GASM dip switch settings (switch 1–3) on page 96 and the table GASM dip switch
settings (switch 4–8) on page 97.
Table 17 G4x16/G8x16 lines and DNs settings
Expansion unit Module Card Lines DNs
1 05 01 065-068 (G4X16)
065-072 (G8x16) 253-268
2 07 01 095-098 (G4X16)
095-102 (G8X16) 285-300
Table 18 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
downloaded from the BCM50
(for enhanced mode only) OFF—if you want the GASM to download the firmware when
the firmware version in the BCM50 is different from the
version in the GASM (default)
ON—if you want the GASM to download the firmware
whenever a cold start is performed for the BCM50
Switch 3 Enable or disable echo
cancellation OFF—Enables echo cancellation (default)
ON—Disables echo cancellation
Mode/Country Select
1 2 3 4 5 6 7 8
Rear of MBM
OFF
ON
Module Select
OFF
ON
1 2 3 4 5 6