Appendix D: S-Register List

S30.......DTE CTS

Controls the operation of the DTE connector CTS line.

 

 

0

= Follows RTS

 

 

1

= Forced CTS (default)

S31.......DTE RTS

Controls operation of the RTS line.

 

 

0

= 1 ms delay (default)

 

 

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 (default)

 

 

1

= DSR active only during a call

 

 

2

= DSR active only when network interface is on

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 (default)

 

 

2

= LOCD

 

 

3

= Off Link Down

S34

DTE DTR

Determines how the ISU 2x64 responds to changes in

 

 

DTR.

 

 

0

= Ignore DTR (default)

 

 

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

 

 

40

= Dial #0 if on

 

 

60

= Dial/Answer if on

 

 

72

= Off on dial #0

S35

DTE CONN

Determines which is the current operating DTE con-

 

 

nector.

 

 

0

= RS-530 connector (default)

 

 

1

= V.35 connector

 

 

2

= EIA-232

S40.......BOND TXINIT

Specifies the number of seconds the originating end-

 

 

point attempts to detect the BONDING negotiation

 

 

pattern from the answering endpoint before deter-

 

 

mining the BONDING call has failed.

 

 

0 to 256, 10 sec is default

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ISU 2x64 Dual Port ISDN Service Unit User Manual

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ADTRAN ISU 2X64 user manual Dte Cd, = Locd, Dte Dtr, DTE Conn, S40.......BOND Txinit