Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - ERX MODULE GUIDE REV 27-9-2010 Manual page 111

Table 18: LED Identification and Activity Descriptions (continued)
LED
Location LED Label
X.21/V.35 ACTIVE
line
module
LOOPBK
ERROR
V.35
X.21
DCE
DTE
Other line SYNC
modules
YEL ALM
RED ALM
Copyright © 2010, Juniper Networks, Inc.
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 1 on page 112)
Ethernet line module (Figure 2 on page 113)
Other line modules (Figure 3 on page 113)
OFF to ON
Port configured
Port in local loopback or remote
loopback, depending on the
type of connection.
Port is enabled or comes online
V.35 cable connected
X.21 cable connected
DCE cable connected
DTE cable connected
In frame
Far-end receive failure (FERF)
exists
Loss of sync/frame
Appendix B: Module LEDs
ON to OFF
Port not configured
Port not in loopback
Port is disabled or goes offline
V.35 cable disconnected
X.21 cable disconnected
DCE cable disconnected
DTE cable disconnected
Not in frame
No FERF present
In frame
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