beautypg.com

ADTRAN Express XRT User Manual

Page 79

background image

Appendix A. AT Commands and S-Registers

61202.153L3-1

Express XRT User Guide

65

S31

DTE RTS

Controls operation of the RTS line.

0=1 ms delay

17=18 ms delay

S32

DTE DSR

Controls the operation of the Data Set Ready

signal on the DTE connectors.

0=Force DSR on always

1=DSR off OOS + Test

2=DSR off Link Down

S33

DTE CD

Controls the operation of the Carrier Detect

line on the DTE connectors.

0=Force CD on always

1=CD is active during a call (Normal Opera-

tion)

2=Off with LOCD

3=Off link down

S34

DTE DTR

Determines how the Express XRT responds

to changes in DTR. This is a bit-mapped reg-

ister.

0=Ignore DTR

1=Force AT command mode when DTR is

off

2=Dump incoming call when DTR is off

4=Hang up incoming call when DTR is off

8=Hang up outgoing call when DTR is off

16=Answer incoming call when DTR is on

28=Idle when off

32=Dial SN0 when DTR is on

64=Dial SN0 when DTR transitions from off

to on

S36

Inactivity Timer

0=Off

1-255=Number of idle minutes before dis-

connect

S37

Conference/Call
Waiting

Flash hook button defaults to:

0=Call waiting

1=Call conferencing

S40

BOND TXINIT

Specifies the number of seconds the origi-

nating endpoint attempts to detect the

Async BONDING negotiation pattern from

the answering endpoint before deciding the

Async BONDING call has failed.

0 to 255, 10 sec is default.