Figure 8-30: Q931 Bit Map Screen - Nortel Media Gateway 3200 User Manual

H.248 User's Manual
4. For the Clock Master (the trunk clock source) drop-down list, select either
'Recovered' (the clock is recovered from the trunk; default) or 'Generated' (the trunk
clock source is provided by the internal/TDM bus clock source) the above selection
depends on the parameter 'TDM Bus Clock Source'. Refer to ''TDM Bus Settings'' on
page 176.
5. For the Line Code drop-down list, select either B8ZS (bipolar 8-zero substitution) for
T1 trunks only; HDB3 (high-density bipolar 3) for E1 trunks only; or AMI for both T1
and E1.
6. After modifying any parameters, do one of the following:
•
To apply the changes to the selected trunk only, click the Apply Trunk Settings
button.
•
When configuring the device for the first time, or when no protocol is specified for
any trunk, To apply the changes to all trunks, click the Apply To All Trunks
button.
The screen is refreshed. Parameters become read-only (shown grayed). The Stop
Trunk button is displayed at the bottom of the screen.
To make a change to any of the parameters, click the Stop Trunk button to return the
screen to a modifiable state.
7. To commit the changes to the non-volatile (flash) memory, in the main menu on the
left, click the Save Configuration link. The Save Configuration screen appears.
8. Click the Save button. The configuration is saved to non-volatile (flash) memory.
Version SN09

Figure 8-30: Q931 Bit Map Screen

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8. MG 3200 Management
October 2006