Cisco Systems IGX 8400 Manual De Usuario

 Trunk Cards 4-43

EIA/TIA-449 data connector

DB-37 female connector

X.21 data connector

DB-15 female connector

V.35 data connector

34-pin female MRAC connector

LOS light (red)

Loss of signal at the local end

Bad CLK light (red)

Loss of clock or clock out of range

Yellow alarm light (yellow)

Loss of packet alignment (NTM) or frame alignment at remote end

DSR light (green)

The DSR lead is high (ON)

DTR light (green)

The DTR lead is high (ON)

RXD light (green)

The receive data line shows activity

TXD light (green)

The transmit data line shows activity

Fail light (red)

An error occurred. First, reset the card with resetcd f. If the LED comes on
again, contact the Cisco TAC through Customer Engineering

Active: light (green)

The card is in service and has active circuits

BC-SR

RS 449/MIL188

X.21

V.35

Fail (red)

H8318

Active (green)

LOS (red)
Bad Clk (red)
Yellow alarm (yellow)
DSR (green)
DTR (green)
RXD (green)
TXD (green)