3460 Fast’R

Configuring Modems for Restoral

You can configure the modem to automatically respond to deteriorating leased-line conditions by switching operation to a back-up dial line.

For further details on the parameter options listed here, refer to the 3460 Fast’R Reference Guide (part no. T0022).

If you normally operate the modem on a leased line, you can set the following options to enable it to switch operation to a backup dial line when conditions warrant. The following example shows the default options.

Parameter

Option

Comment

Answer Restoral

AT*AS0=LL Fail

 

Answering modem:

Lease to Dial

AT*DI1=Low/Fast

Threshold

 

When connected to the leased line, the modem answers a dial call only if the leased line fails.

This parameter does not apply when AT*RE=0 (Off).

The originating modem uses this option to determine the threshold for initiating restoral. Low/Fast is the most sensitive option–if three retrains occur within five minutes, the modem initiates restoral.

Hold Dial Line

AT*HD0=Off

The originating modem uses the

 

 

HD option to determine how to

 

 

hold a dial connection while

 

 

testing a leased line. Off means

 

 

that the modem disconnects from

 

 

the dial line as soon as it connects

 

 

to the leased line.

 

 

This parameter works only when

 

 

the Initiate/Terminate Restoral

 

 

parameter (*RE) is set to

 

 

NM/Fast’RVu/Auto (option 4).

Parameters and options shown shaded gray vary by country. For details, refer to Appendix B of the 3460 Fast’R Reference Guide .

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Motorola 3460 Configuring Modems for Restoral, Parameter Option Comment, AT*DI1=Low/Fast, Dial line as soon as it connects