Chapter 6 - S-Registers

S15

Callback Time Delay

Unit:

Seconds

Range:

10-255

Default:

20

Description:

S15 defines the time delay between Callback attempts after initial passwords have

 

been exchanged between modems. Refer to Chapter 7 for Callback Security

 

information.

S16

Callback Attempts

Unit:

1 Attempt

Range:

1-255, 1-2***

Default:

4, 2***

Description:

S16 defines the number of attempts allowed after initial passwords have been

 

exchanged between modems.

S17

Changing Break Time

Unit:

10 mSec.

Range:

0-2.5 sec

Default:

250

Description:

S17 defines the break time (space) sent to the local PC. The default is set for a 25 to

 

250 mSec break. The break time can be changed in 10 mSec increments by

 

increasing or decreasing the value of S17.

S18

Automatic Leased Line Restoral

Unit:

1 minute

Range:

10-255

Default:

30 minutes

Description:

When the modem is in dial backup mode, it periodically checks the lease line to see

 

if it is operational and tries to restore the lease line if possible. S18 defines how often

 

attempts occur. The default of S18 is 30 minutes and can be set in one minute

 

increments from 10 to 255 minutes. Setting the S18 restoral under 10 minutes

 

causes excessive breaks in dial-up operation.

S19

Dial-Back Timer

Unit:

1 minute

Range:

0-255

Default:

1

Description:

S19 is a timer that begins when the lease line goes down. S19 specifies the duration

 

of time the modem attempts to reestablish the lease line connection.

*Value for International and DOC units

**Value for International units only

***BLK models only

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Multi-Tech Systems BL-Series S15 Callback Time Delay, S16 Callback Attempts, S17 Changing Break Time, S19 Dial-Back Timer