APPENDIX E: S-Register Summary

S-REG.

UNIT

 

 

RANGE

DEFAULT

DESCRIPTION

S24

 

 

 

 

 

 

 

50 mSec

0-255

 

20

Sets DSR/CTS/CD

 

 

 

 

 

 

 

dropout time. Default

 

 

 

 

 

 

 

(20) equals one second.

S25

100 mSec

0-255

 

0

Sets DTR dropout time.

 

 

 

 

 

 

 

0 default equals

 

 

 

 

 

 

 

50 mSec.

S26

Failed

0-255

 

0

Specifies number

 

Attempts

 

 

 

of failed password

 

 

 

 

 

 

 

attempts allowed.

S29

1

 

 

1-255

 

20

Specifies the amount of

 

 

 

 

 

 

 

idle time can elapse

 

 

 

 

 

 

 

between AT commands

 

 

 

 

 

 

 

after the SETUP

 

 

 

 

 

 

 

password has been

 

 

 

 

 

 

 

entered

S30

Minutes

0-255

 

0

Inactivity timer used to

 

 

 

 

 

 

 

disconnect modem.

S32

100mSec

0-255

 

20

Sets time that modem

 

 

 

 

 

 

 

waits for a <RETURN> to

 

 

 

 

 

 

 

be entered during

 

 

 

 

 

 

 

escape sequence

 

 

 

 

 

 

 

execution.

S34

Chars.

0-60

 

10

Buffer size for number

 

 

 

 

 

 

 

of characters in AT

 

 

 

 

 

 

 

command string after

 

 

 

 

 

 

 

on-line escape sequence,

 

 

 

 

 

 

 

before buffer is cleared

 

 

 

 

 

 

 

and escape sequence

 

 

 

 

 

 

 

aborted.

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Black Box MD1640A, MD1641A manual S24