3-4 CHAPTER 3: DUAL T1/PRI MAINTENANCE
Menu Option 11 Disabling red ALARM LEDs
The span line ALARM LEDs on the NAC’s front panel remain lit for the
duration of an alarm condition. In cases where th e alarm condition is
recognized and it is determined that the cause for this alarm is accounted
for, disable the LED with this option.
An example of such a condition would be when only one span is being
used. Since there is no span line physically attached to the NIC’s span 2
port at the time the NAC is installed, the ALARM LED for span 2 goes red.
You may wish to disable the LED because this is a normal operating
condition.
Menu Options
12 and 13 Connect/disconnect B-channel on span lines 1 and 2
This option allows you to connect and/or discon nect the B-channel on
span lines 1 and 2.
Menu Options
14 and 15 Changing individual DS0 service states
This option allows you to place an individual D S0 in or out of service
(locally). This is useful for troubleshooting or testing.
Use the following syntax when configuring this option:
SS:DS0# (for a single channel)
SS:DS0#,DS0#,... (for single, non-sequential channels)
SS:DS0#-DS0# (for a range of channels)
Where:
SS = service state (I for in-service, O for local out of service)
DS0# = DS0 number (1–23)
Menu Options
16 and 17 Changing span line service state
This option allows you to place the entire span line (1 and/or 2) in or out
of service (locally). This is useful for troubleshooti ng or testing.