3Com SuperStack 3 NBX Administrator's Manual page 317

6 Fill in or change the fields in the appropriate Modify Channel dialog box.
See the Help for a description of each parameter. Enable the On Line
check box to bring the channel on line. Click Apply and then OK.
The channel does not come online unless the card and the span are
online.
Viewing the Status of a T1 Card Channel
To view the status of a channel on an installed T1 Digital Line Card:
1 On the Digital Line Cards tab, select, from the Select Device Type
pull-down list, either T1 Channel List (for T1 DS1 channels) or
ISDN PRI Channel List (for T1 ISDN PRI channels).
2 Click Apply.
3 Select the channel for which you want status information.
4 Click Status. A Channel Status dialog box appears.
5 The dialog box that appears depends on the channel list that you select.
Figure 135 shows the Channel Status dialog box for a T1 DS1 Channel
List. Figure 136 shows the Channel Status dialog box for the T1 ISDN PRI
Channel List.
Figure 135 Channel Status Dialog Box — T1 DS1
Configuring and Managing T1 Digital Line Cards 317