Rear Panel Leds - Cisco 1601 Specifications

SER 0 ACT
Green
WIC CD/B1
Green
WIC
ACT/B2
Green

Rear Panel LEDs

The table below explains the rear panel LED functions.
LED
All Models
LNK (next to
ETHERNETØ
10BASET)
Green
OK (next to
FLASH PC CARD
slot)
Green
Cisco 1601
RDY
Green
Cisco 1602
LOOPBACK
Yellow
ALARM
Yellow
connection on the DSU/CSU
port.
The Cisco 1601 serial port is
sending or receiving data.
The Cisco 1602 DSU/CSU port
is sending or receiving data.
The serial WAN interface card
has an active connection on the
serial port.
~The ISDN WAN interface card
has an ISDN connection on
B−channel 1.
The WAN interface card serial
port is sending or receiving data.
The WAN interface card ISDN
port has a connection on
B−channel 2.
Color Description
Indicates 10BaseT link integrity.
This LED is not on when
connected to an Ethernet network
through the AUI port.
The Cisco 1605 has two LNK
LEDs, one for each Ethernet
10BaseT port.
The Flash PC card is correctly
installed.
A serial port cable connection has
been made to a modem or
DSU/CSU.
The DSU/CSU is in DSU or CSU
loopback mode.
An alarm condition exists on the
DSU/CSU port.