Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 398

Cisco T1/E1 Network Module LEDs
Cisco T1/E1 Network Module LEDs
The T1/E1 network module has 2 LEDs for each port that indicate the functionality of the T1 or E1
connection.
Figure 38-1
NM-
8CE1T1-
PRI
1
3
5
CD/LP LEDs are bicolor LEDs with both green and yellow emitters.
Table 38-1
LED
CD/LP
AL
EN
Cisco Network Modules Hardware Installation Guide
38-2
Figure 38-1 shows the front panel and LEDs. The LEDs are described in
8-Port T1/E1 Network Module Front Panel
CD/LP P7 AL CD/LP P6 AL CD/LP P5 AL CD/LP P4 AL
RJ-48C connector
CD/LP LED (bicolor LED)
EN LED
T1/E1 Network Module LEDs
Color
Green/Yellow
Yellow
Green
Chapter 38
CD/LP P3 AL CD/LP P2 AL CD/LP P1 AL CD/LP P0 AL
2 Port number
4
AL LED
Description
Off: No carrier detected
Green on (CD): Carrier detected
Yellow on (LP): Port in loopback mode
Off: No alarms
On: Port in alarm mode
Off: Network module does not pass self-test and is not available to
the router. There is a failure with either the module or the slot.
On: Network module has passed self-test and is available to the
router.
The network module may be removed from router when the
EN LED is off.
Connecting 8-Port T1/E1 Network Modules
Table 38-1.
3 4
1
EN
2 5
OL-2485-20