CHAPTER 6: S-Registers

dropout time can be increased in 100-mSec intervals, up to a maximum of 25.5 seconds (S25 set to 255). The default S25 setting of zero corresponds to a dropout time of 50 mSec.

All other possible settings (1 through 255) correspond to their multiples of 100 mSec.

S26

Failed Password Attempts

Unit:

Failed attempts

Range:

0-255

Default:

0

Description:

S26 counts the number of times there has been

 

a failed password attempt. For example, if you

 

entered ATS26? and the message 003 were

 

displayed, it would mean that someone has

 

failed three times to gain access to your modem

 

using its password security system.

S29

Local Inactivity Timer

Unit:

Minutes

Range:

1-255

Default:

20

Description:

S29 defines the amount of idle time that can

 

elapse between AT commands after the SETUP

 

password has been entered. If this timer expires,

 

the LOGIN and SETUP passwords will have to

 

be re-entered. S29 only takes effect when the

 

modem has been sent a #DB1 command, which

 

secures the modem from local and remote con-

 

figuration or dialing (i.e., no AT commands can

 

be sent until the LOGIN and SETUP passwords

 

have been entered).

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Black Box MD1640A, MD1641A manual S26 Failed Password Attempts, S29 Local Inactivity Timer