Chapter 6 - S-Registers

S30

Inactivity Timer

Unit:

1 min.

Range:

0-255

Default:

0

Description:

S30 causes the modem to disconnect if no data is transmitted or received for a

 

specified time. This timer runs during both Reliable and Normal error correction

 

connections. The timer restarts any time a data character is passed through the

 

serial port (either sent or received). If noise on the phone line causes an error to be

 

received during Normal mode, this also restarts the timer. The default value is off (0).

 

The inactivity timer is disabled by setting S30 to 0, which is the factory default

 

setting.

S32

Time Elapse for Escape Sequence

Unit:

1 second

Range:

0-255

Default:

20

Description:

S32 sets the time period to validate the escape sequence. If the time interval expires

 

before the escape sequence is employed (by hitting RETURN), the escape

 

sequence is aborted. The default is 20 units.

S34

Buffer Length of Command Mode...After On-line Escape Sequence

Unit:

ASCII Character

Range:

0-60

Default:

10

Description:

If the number of characters after AT exceeds the S34 buffer length value, the buffer

 

is cleared and the escape sequence is aborted.

S36

Time Between DTR Inactive and Modem Off-Hook

Unit:

1 Second

Range:

0-255 seconds

Default:

0

Description:

The DTR Busy-out feature uses S-Register S36 to set the time between DTR

 

inactive (low) and the modem going off-hook. S36 can be set in one-second intervals

 

from 0 to 255 seconds. With the default setting of S36=0, DTR Busy-Out is disabled

 

(i.e., DTR won't Busy-Out).

S37

Time Between DTR Active and Modem On-Hook

Unit:

1 Second

Range:

0-255 seconds

Default:

5

Description:

S37 sets the time between DTR being active and the modem going on-hook(not

 

busy). S37 will only function in conjunction with S36.

Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide

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Multi-Tech Systems MT2834BL, MT2834BA manual S30 Inactivity Timer, S32 Time Elapse for Escape Sequence