3Com SuperStack 3 NBX Administrator's Manual page 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.
Configuring and Managing T1 Digital Line Cards 293