Nortel Networks AN/DC Back-Panel LEDs, Meaning Ethernet/Second Ethernet interface Xcvr or UTP

Operating the AN/DC and ANH-8/DC

Back-Panel LEDs

The LEDs on the AN/DC back-panel differ depending on the AN/DC model that you have. Table 4-2 describes all of the available AN/DC back-panel LEDs. These LEDs indicate the status of the AN/DC’s network connections.

Table 4-2. Back-Panel LEDs

LED

Meaning

Ethernet/Second Ethernet interface (XCVR or UTP)

TX (Transmit)	Lights when the AN/DC is transmitting data over the network.
RX (Receive)	Lights when the AN/DC is receiving data from the network.
CL (Collision)	Lights when the AN/DC detects a collision on the network.
Synchronous interfaces (COM1 and COM2)
RLSD1	Lights when Received Line Signal Detection is active on
(Received Line	COM 1.
Signal Detection 1)
RLSD2	Lights when Received Line Signal Detection is active on
(Received Line	COM 2.
Signal Detection 2)
ISDN/BRI interfaces

ISDN BRI

Lights when S/T interface is active; turns off when interface is inactive.

312410-A Rev 00 4-5