Installation guide

8-3
Cisco 10000 Series Routers Line Card Hardware Installation Guide
OL-6773-04
Chapter 8 6-Port Channelized T3 Line Card Overview
LEDs
LEDs
The 6-port channelized T3 line card LEDs are Figure 8-1.
Figure 8-1 6-Port Channelized T3 Line Card Faceplate Description
Table 8-3 provides a description of the 6-port channelized T3 line card LEDs.
1 Fail LED 3 Alarm LED
2 Loop LED 4 Carrier (carrier detect) LED
126716
CISCO
10000
CARRIER
ALARM
LOOP
FAIL
6XCT3–DS0
0
5
4
3
2
1
4
1 2
3
Table 8-3 LEDs Description
LED Label Color State Meaning
FAIL Yellow Off Off when line card is working properly.
On A major failure has disabled the line card.
LOOP Yellow Off Port is in a loopback state and not enabled for data traffic.
On On when some portion of the corresponding port data is in a
loopback state (T3 or T1) and is not enabled for data traffic.
ALARM Yellow Off Off when there is no alarm condition.
On On when an alarm condition (T3 or T1) exists at DS1, AIS,
DS1 remote, DS1 OOF, DSE OOF, DSE AIS, or DS3 FERF 1
level.
CARRIER
(carrier detected)
Green Off No carrier is detected; the port is not able to pass traffic.
On On when a carrier is detected; the port is able to pass traffic.