Juniper E Series Hardware Manual page 120

E-series Hardware Guide
Table 12: LED identification and activity descriptions (continued)
LED Location LED Label
X.21/V.35 line ACTIVE
module
LOOPBK
ERROR
V.35
X.21
DCE
DTE
Other line SYNC
modules
YEL ALM
RED ALM
102 !
Understanding Status LEDs to Troubleshoot
LED Indicator LED Color
Port status Green
Port status Yellow
Port status Red
Port status Green
Port status Green
Port status Green
Port status Green
Port status Green
Port status Yellow
Port status Red
The following figures show a representative module for each of the three variations:
! SRP module (Figure 52)
Ethernet line module (Figure 53)
!
! Other line modules (Figure 54)
OFF to ON ON to OFF
Port configured Port not configured
Port in local loopback or Port not in loopback
remote loopback,
depending on the type of
connection. (See)
Port is enabled or comes Port is disabled or goes
online offline
V.35 cable connected V.35 cable disconnected
X.21 cable connected X.21 cable disconnected
DCE cable connected DCE cable disconnected
DTE cable connected DTE cable disconnected
In frame Not in frame
Far end receive failure No FERF present
(FERF) exists
Loss of sync/frame In frame