3Com SuperStack 3 NBX, Administrator'S Manual

Page: 296 / 496

296 C
HAPTER
3: D
EVICE
C
ONFIGURATION
Configuring a T1
Digital Line Card for
ISDN PRI Signaling
These sections tell you how to use the NBX NetSet utility to set up your T1
Digital Line Card for ISDN PRI signaling:
■
T1 ISDN PRI Configuration
■
Configuring T1 Groups (ISDN PRI)
■
Verifying T1 Group Membership (ISDN PRI)
■
Completing the T1 Configuration (ISDN PRI)
Before you configure a T1 Digital Line Card for ISDN PRI (Primary Rate
Interface) signaling, read the cautionary note.
CAUTION: Wait 3 minutes for the T1 card to initialize and for the system
to update its database. You must wait this long because the T1 card
reboots twice during the initialization process. If you attach a console
cable to the COM1 port on the T1 card and use Hyperterm software to
view the text output from the card, you see status messages associated
with the two reboot processes. See
“Connecting a Computer to a Serial
Port” , in Chapter 10 .
Another way that you can be sure that it is safe to proceed is to examine
the status lights on the front panel of the T1 card. After the Auto
Discovery process has completed, and before you connect the T1 Digital
Line Card to the telephone company’s T1 line, the CF (Carrier Fail) light
should appear solid green.
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 In the NBX NetSet - Main Menu window (Figure 110), click
Device Configuration .
2 Select the Digital Line Cards tab (Figure 113).
3 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.
4 Click Modify. The Modify Board dialog box (Figure 118) appears.