
WAN
ACT
Yellow
Blinking when the xDSL port receives or
transmits data.
Cisco 678
The ADSL port uses an RJ−11 connector.
ADSL Port Pinouts
Pin
Signal
3
Ring
4
Tip
Note: Pins 1, 2, 5, and 6 are not used.
WAN Link and Powerup Issues
This is the normal sequence of events when you power up the router:
The ALARM light comes on within five seconds, flashes for half a second, then goes off.1.
Between one and ten seconds after the ALARM light goes off, the WAN LNK light starts to blink.
This indicates that the router attempts to establish communication with the service provider modem in
the central office.
2.
After communication is established, the WAN LNK light remains on.3.
Under normal conditions, the ALARM light is off within six seconds of powering up the router, and within
one minute the WAN LNK light is on.
If the router does not establish communication with the service provider modem, the WAN LNK light goes
off. The router waits ten seconds. The WAN LNK light starts to blink when the router tries again to establish
communication.
If the WAN LNK light continues to blink after attempts to establish communication, turn off the power and
then turn it on. If the WAN LNK light still does not become solid within one minute, call your service
representative.
If the ALARM light flashes RED or lights RED and stays on, call your service representative.
Note: With the POWER light on, the WAN LNK light appears off under certain circumstances, even though
the Cisco 678 operates correctly. This condition occurs, for instance, if there is no data traffic across the WAN
LNK for two minutes or more. In this case, the PPP session times out. and the WAN LNK light goes off.
During subsequent requests for data across the link, the WAN LNK light starts to blink. This indicates that the
ADSL connection sequence has started.
Cisco 802 IDSL and 804 IDSL
If your wall jack has an RJ−11 connector, attach the RJ−45−to−RJ−11 adapter cable to the red cable. Connect
the RJ−11 connector to the IDSL wall jack.
Cisco − DSL Modem/Router Interface Pinouts and Status LED Descriptions
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