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•
three LEDs indicators for each E1/T1 span:
—
—
—
•
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:
—
—
—
—
•
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:
—
—
See
Table 7
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
Media Gateway 1000E PRI Gateway Installation and Commissioning
ENB/DIS indicates if the span is enabled/disabled by the system
RED (local) alarm indicator
YELLOW (remote) alarm indicator
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
link activity
speed (100 Mbps or 10 Mbps)
Table 7 "LED functionality for the E1/T1 card" (page
Color
Green
Red
Green
Red
Red
Yellow
Off
Red
Green
Nortel Communication Server 1000
NN43041-311 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
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
Lit when E1/T1 link is disabled
Lit when E1/T1 link has Near End alarm
Lit when E1/T1 link has Far End alarm
DDCH/DCHI is not equipped
For DDCH/DCHI: Lit when MSDL/DDSL is
disabled. For DCHI-SW: Lit when at least one
DDSL (of a pair) is disabled.
"For DDCH/DCHI: Lit when MSDL/DDSL
is enabled. For DCHI-SW: Lit when all
configured DDSLs (of a pair) are enabled.
E1/T1 card 39
39).
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