3Com SuperStack 3 NBX, Administrator'S Manual

Page: 288 / 496

288 C
HAPTER
3: D
EVICE
C
ONFIGURATION
Configuring a
T1 Digital Line Card
for the DS1 Protocol
These sections tell you how to use the NBX NetSet utility to set up your T1
Digital Line Card for DS1 protocol:
■
T1 DS1 Configuration
■
Configuring T1 Groups (DS1)
■
Verifying T1 Group Membership (DS1)
■
Completing the T1 Configuration (DS1)
Before you configure a T1 Digital Line Card for DS1 protocol, 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 DS1 Configuration
To set up the T1 card for the DS1 protocol:
1 In the NBX NetSet - Main Menu window (Figure 110), click Device
Configuration .
2 In the Device Configuration window, click the Digital Line Cards tab
(Figure 113).