3Com SuperStack 3 NBX Administrator's Manual page 298

298 C 3: D
HAPTER EVICE
C
ONFIGURATION
Figure 119 ISDN PRI Channel List Dialog Box — T1 ISDN PRI
11 Verify that the highest channel in the Chan column is 23.
When you configure a T1 Digital Line Card for ISDN PRI signaling, one of
the 24 channels is allocated for signaling, leaving 23 for data (voice).
Connecting the T1 Line and Activating the Span
To connect the T1 line and activate the span:
1 Plug the T1 line into the T1 Digital Line Card.
2 Return to the Digital Line Cards tab (Figure 113).
3 From the Select Device Type list, select T1/ISDN Board List.
4 Click Apply.
5 From the list, select the new T1 Digital Line Card.
To identify the card, look for those cards that have PRI in the Type column
and use the MAC address to identify the specific card. You recorded the
MAC address before inserting the card.