Nortel Networks 1000 - Manual (Page 323)

Physical description 323
ENET LEDs
Two red LEDs indicate if the "ENET0" and "ENET1" portions of the card
are disabled. These LEDs are lit in the following cases:
• When the enable/disable switch is in disabled state (lit by hardware).
•
After power-up, before the card is enabled.
•
When the ENET port on the card is disabled by software.
Trunk Disable (DIS) LEDs
Two red LEDs indicate if the "trunk port 0" or "trunk port 1" portions of the
card are disabled. These LEDs are lit in the following cases:
• Upon reception of the "disable loop" message from the software.
•
After power-up.
OOS LEDs
Two yellow LEDs indicate if the "trunk port 0" and "trunk port 1" portions of
the card are out of service.
NEA LEDs
Two yellow LEDs indicate if the near end detects absence of incoming
signal or loss of synchronization in "trunk port 0" or "trunk port 1"
respectively. The near-end alarm causes a far-end alarm signal to be
transmitted to the far end.
FEA LEDs
Two yellow LEDs indicate if a far-end alarm has been reported by the far
end (usually in response to a near-end alarm condition at the far end) on
"trunk port 0" or "trunk port 1".
LBK LEDs
Two yellow LEDs indicate if a remote loopback test is being performed
on trunk port 0 or trunk port 1. The loopback indication is active when
the digital trunk is in remote loopback mode. Normal call processing is
inhibited during the remote loopback test.
DCH LED
When the dual colored LED is red, it indicates the on-board DDCH is
present but disabled. When the dual colored LED is green, it indicates the
on-board DDCH is present and enabled. If a DDCH is not configured on
the DDP2 card, this lamp is not lit.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.