252 CHAPTER 3: DEVICE CONFIGURATION
T1 Card Status Lights The T1 card contains t hese status lights:
CF — Carrier Fail (when lit, indicates red alarm or blue alarm)
RA — Remote Alarm (yellow alarm)
LB — Loopback (when lit, indicates that the card is in loop-back
testing mode; does not indicate any of the red, blue, or yellow alarms)
Nominal — T1 card is framed
Modifying a T1 Card These sections d escribes how to modify a T1 card that is already installed
in the system.
Modifying the T1 Card Name or Type
Modifying a T1 Span
Configuring Partial T1 Lines
Modifying Audio Controls
Modifying the T1 Card Name or Type
You can change the name of a Digital Line Card at any time. You can also
set the type to T1 or ISDN PRI.
To modify a T1 card name or type:
1On the Digital Line Cards tab, select the board in the T1/ISDN Board List.
2Click Modify.
3To modify the name of the board, enter a new name in the Board Name
field. You can use alphanumeric characters, hyphens, and underscores.
The maximum name length is 30 characters.
4To change the type of card, in the Card Type field, select either T1 (for T1
DS1 protocol) or ISDN PRI (for T1 ISDN PRI).
5Click OK.
Modifying a T1 Span
To modify a span:
1On the Digital Line Cards tab, select either T1 Span List (forT1 DS1) or
ISDN PRI Span List (for T1 ISDN PRI) from the Select Device Type
drop-down list and click Apply.
2Select the span you want to modify from the Span List.
3Click Modify.