3Com T1/PRI Network Card User Manual


 
Configuring the Card
2-15
Menu Option 2 Restoring configuration from NVRAM
This option allows you to return the NAC to configuration settings stored
in NVRAM.
Menu Option 3 Restoring the default configuration
After saving configuration changes to NVRAM, you may decide at a later
date that changes need to be made. An easy way to implement this new
configuration is to return the NAC to the default configuration and start
fresh.
Menu Option 4 Assigning timing source priority
Each span line provides a timing source for the synchronization of data
transfer. This option allows you to set the priority of each span’s timing
source.
The source with the highest priority is the primary timing source for the
span lines. The span with the lowest priority acts as a secondary timing
source should the primary be lost.
Menu Option 5 Configuring chassis slot devices
This allows the user to configure NACs in slots 1–16 of the Total Control
chassis. Only the following types of cards are configurable:
Quad Modem Card
Quad I-Modem Card
NETServer PRI Card (ISDN-GW)
Use the following syntax to assign a device to a chassis slot:
dev:s#
(for single assignments)
dev:s#,s#,s#,...
(for multiple assignments)
Where:
dev
= device type (
q
for Quad Modems,
i
for Quad I-Modems,
g
for ISDN gateways, or
n
for none)
s#
= chassis slot number (1–16)