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Configuring and Managing T1 Digital Line Cards 249
T1 ISDN PRI Configuration
When you configure a T1 Digital Line Card for ISDN PRI operation, verify
that the Auto Discover Digital Line Cards check box is enabled (System
Configuration > System Settings > System-wide).
To configure the T1 card for ISDN PRI signaling:
1 On the Digital Line Cards tab select T1/ISDN Board List from the Select
Device Type drop-down list and click Apply.
2 From the list, select the new T1 Digital Line Card. Use the MAC address of
the T1 Digital Line Card to identify the card in the list. You recorded the
MAC address before inserting the card.
3 Click Modify. The Modify Board dialog box appears.
4 To change the name of the T1 Digital Line Card, enter a new name in the
Board Name field. You can use alphanumeric characters, hyphens, and
underscores. The maximum name length is 30 characters.
5 From the Card Type drop-down list, select ISDN PRI.
6 Click OK. The Digital Line Cards tab reappears.
7 Wait until the entry for this Digital Line Card in the Type column changes
to PRI. To see the change, you may need to wait a minute or two, and
refresh your browser window.
8 After the board type changes, from the Select Device Type drop-down
list, select ISDN PRI Channel List.
9 Click Apply. The dialog box is updated to show the ISDN PRI Channel List.
10 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 On the Digital Line Cards tab, select T1/ISDN Board List from the Select
Device Type list and click Apply.
3 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.