Cisco 1417 - 1417 Router - EN Manual de usuario descargar pdf (Pagina 6)

Note: In certain circumstances in which the Cisco 626 operates correctly, the WAN LNK light appears off

when the PWR/ALARM light is on. For example, this condition occurs when there is no data traffic across the

WAN LNK for a period of time. During subsequent requests for data, the WAN LNK light starts to blink.

This indicates that the ADSL connection sequence has begun.

Why the WAN LNK LED Turns Off

If the WAN LNK LED blinks continuously, the Cisco 626 never trains with the Cisco 6100/6200 digital

subscriber line access multiplexer (DSLAM). There are several reasons why this occurs:

The ADSL line is not connected to the Cisco 626.•

No available ATU−Cs with which the Cisco 626 trains up.•

The ADSL circuit is too long.•

Excessive noise on the ADSL circuit.•

If the WAN LNK LED turns off after the Cisco 626 has been transferring data, the Cisco 626 or the

6100/6200 has the SESSION timeout set. If the timeout is set, the Cisco 626 WAN LNK LED turns off after

that time period whether or not it is idle.

Cisco 627

The ADSL line port on a Cisco 627 uses a standard RJ−11 6−pin modular jack.

ADSL Port Pinouts

Signal

Ring

Tip

Note: Pins 1, 2, 5, and 6 are not used.

WAN LNK LED

If the WAN LNK light does not turn on when you power up the modem:

Wait approximately fifteen seconds.1.

If the light does not turn on, check all cabling and connections.2.

If the light still does not turn on, turn off the power and then turn it on again.3.

If the LED is not on, call your service representative.4.

Why the WAN LNK LED Turns Off

If the WAN LNK LED blinks continuously, the Cisco 627 never trains with the Cisco 6100/6200 DSLAM.

There are several reasons why this occurs:

The ADSL line is not connected to the Cisco 627.•

No available ATU−Cs with which the Cisco 627 trains up.•

The ADSL circuit is too long.•

Excessive noise on the ADSL circuit.•

Cisco − DSL Modem/Router Interface Pinouts and Status LED Descriptions

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Cisco 1417 - 1417 Router - EN Manual de usuario Pagina 6