Nortel Media Gateway 1000E PRI Installation And Comissioning Manual page 35

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See
Table 5
LED functionality for the E1/T1 card
Group LED Name
Power (1 LED) PWR
Fan (1 LED) FAN
E1/T1 Spans (8 ENB/DIS
spans)
ENB/DIS
(24 LEDs)
RED
YELLOW
D-channels UL, UR, LL, LR
(4 LEDs)
UL, UR, LL, LR
UL, UR, LL, LR
Clock Synch CLOCK SYNC
(1 LED)
CLOCK SYNC
CLOCK SYNC
Media Gateway 1000E PRI Gateway Installation and Commissioning
Copyright © 2007, Nortel Networks
.
one LED per DDCH/DCHI daughterboard to indicate if the D-channel
is enabled or disabled. Each DCH LED is associated with one
daughterboard as follows:
— UL LED to DCH upper left daughterboard
— UR LED to DCH upper right daughterboard
— LL LED to DCH lower left daughterboard
— LR LED to DCH lower right daughterboard
one LED for clock controller functionality that indicates success or failure
of Clock Reference recovery
two LEDs for Ethernet (part of RJ-45 connector) indicating:
— link activity
— speed (100 Mbps or 10 Mbps)
Table 5 "LED functionality for the E1/T1 card" (page
Color
Green
Red
Green
Red
Red
Yellow
Off
Red
Green
Red
Green
Flashing
green
Nortel Communication Server 1000
NN43041-311 01.01 Standard
Release 5.0 30 May 2007
Functionality
Lit when power is OK
Lit when one of the fans in the cooling unit
is faulty
Lit when E1/T1 link is enabled and OK
Lit when E1/T1 link is disabled or not active
Lit when E1/T1 link has Near End alarm
Lit when E1/T1 link has Far End alarm
DCH is not equipped
Lit when DCH is disabled
For DDCH, lit when both DCH interfaces are
disabled
Lit when DCH is active (enabled but not
necessarily established)
Lit when clock controller disabled
Lit when locked to a reference or in free-run
mode
Flashing when in tracking mode
E1/T1 card 35
35).