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5-2
Book Title
78-13113-06 B0
Chapter 5 Troubleshooting the Uplink Cards
LEDs
LEDs
The following LED information is found in this section:
• DPT and POS/DPT Uplink Card LEDs, page 5-2
• RPR/SRP Uplink Card LEDs, page 5-4
DPT and POS/DPT Uplink Card LEDs
Information on both uplink card specific LEDs and system LEDs for the DPT and POS/DPT uplink cards
is in this section.
The LEDs located on the left side of the DPT and POS/DPT uplink card provide DPT and POS uplink
status information. (See Figure 5-1.) For POS/DPT uplink cards, the LED information is dependent on
whether the card is configured as POS or DPT. (See Table 5-1 and Table 5-2.)
See Table 5-3 for system LED information for the DPT and POS/DPT cards.
Figure 5-1 DPT and POS/DPT Uplink Card LEDs
Table 5-1 DPT Uplink Status LEDs
LED Activity Description
ACTIVE
Green Port is active.
Blinking red Fiber misconnect is detected (that is, side A connected to neighbor side A).
There is no TX optical power.
Off Port is not active.
CARRIER
Green Framer has locked onto the SONET frames.
Off Framer has not achieved lock.
RX PACKET
Green Packets are being received on the port.
1
1. Note that because of the SRP usage packets, this LED will remain permanently lit during normal SRP operation.
Off No packets are being received on the port.
WRAP or SRP WRAP
Green Wrap in system (for example, another station on the ring is wrapped).
Red Port is in local wrap.
Off No wrap (for example, port is operating normally).
PASSTHRU or SRP PASS THRU
Green Port is in passthru mode.
Off Port is operating normally.
66303
CONSOLE AUX
RESET
OVERTEMP
CARD FAIL
SYSTEM STATUS
POWER
ACTIVE
CARRIER
RX PKT
WRAP
PASS THRU
A B
10720-SR-LC
TX RX TX RX
ACTIVE
CARRIER
RX PKT
WRAP
PASS THRU
OVERTEMP
CARD FAIL
SYSTEM STATUS
POWER