Appendix A. AT Commands and S-Registers

 

 

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

 

 

 

Operation)

 

 

2

= Off with LOCD

 

 

3

= Off link down

S34 ...

DTE DTR

Determines how the Express XR/XRT responds

 

 

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

 

 

ter.

 

 

 

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

S40 ... BOND TXINIT .. Specifies the number of seconds the originating endpoint attempts to detect the Async BOND- ING negotiation pattern from the answering endpoint before deciding the Async BONDING call has failed.

0 to 255, 10 sec is default.

S41 ... BOND TXFA ...... Specifies the number of seconds both endpoints

attempt to detect the async BONDING frame pattern when a call is connected before deciding the async BONDING call has failed. When operating with other manufacturer's async BONDING equipment it may be necessary to lengthen this timer so that it matches TXADD01. 0 to 255, 10 sec is default.

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Express XR/XRT Quick Start Guide

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ADTRAN 3360.9VU01, 1200153L2, 1200153L1, 336048VUR-2, XRT quick start S32, S33, S34