3Com NBX 100, Administrator'S Manual

Page: 293 / 496

Configuring and Managing T1 Digital Line Cards 293
8 Click the On Line check box.
9 Enter 500 in each of the four AutoExt text boxes.
10 Click OK .
The NBX system now begins to create the group. If you connect the
telephone company’s T1 line to the T1 Digital Line Card, or if you connect
a loopback cable to the T1 card, the Nominal light turns on.
Verifying T1 Group Membership (DS1)
To verify that all channels are in the Member List of a T1 Digital Line Card:
1 Return to the Digital Line Cards tab (Figure 113).
2 From the Select Device Type list, select T1 Group List .
3 Click Apply .
4 From the list, select the group you want.
5 Click Membership. The Manage Group Membership dialog box
(Figure 116) appears.
Figure 116 Manage Group Membership Dialog Box
6 Scroll through the Member List to verify that all 23 channels are present
for each T1 Digital Line Card in the system.