Omni 56K Plus Series User’s Guide

Table 4-16 Extended S-Registers "ATSn=x"

COMMAND

BIT

DEC

HEX

FUNCTION AND DESCRIPTION

REF.

 

 

 

 

 

 

 

6

64

40

Enables type 4 ring detection.

 

 

 

 

 

 

 

S41=

bit

dec

hex

Bit mapped register.

+000

 

 

 

 

 

 

 

0

1

1

Special MNP compatibility. (see also S27.0, S38.5)

&Kn

 

 

 

 

 

 

 

3

8

8

Enable CCITT signals 140 and 141 on EIA-232D

 

 

 

 

 

interface.

 

 

4

16

10

In X2-X7 setting, modem waits for S6 seconds before

 

 

 

 

 

dialing and ignores dial tone detection.

 

 

 

 

 

 

 

 

5

32

20

DSR follows DCD and pulses for 0.5 sec after DCD on-

&Sn

 

 

 

 

off transition.

 

 

 

 

 

 

 

 

6

64

40

Force S0>=2; doesn‘t answer on the first ring.

S0

 

 

 

 

 

 

 

7

128

80

Ignore calling tone, not to be used as fax detection.

 

 

 

 

 

 

 

S42=

bit

dec

hex

Bit mapped register.

+000

 

 

 

 

 

 

 

1

2

2

Enables throughput averaging.

 

 

 

 

 

 

 

 

2

4

4

CND message will be forced on even if ATQ2 is set.

 

 

 

 

 

 

 

 

3

8

8

Disable escape sequence code in answer mode.

 

 

 

 

 

 

 

 

4

16

10

Disable V.17 14,400 Fax in calling mode, no effect to

 

 

 

 

 

answering mod.

 

 

 

 

 

 

 

 

5

32

20

Disable Data/Voice button switch.

 

 

 

 

 

 

 

 

6

64

40

Disable ‘RINGING’ result code.

Xn

 

 

 

 

 

 

 

7

128

80

DCD forced on but pulse off for 0.5 seconds at carrier

&C0

 

 

 

 

loss.

 

 

 

 

 

 

 

S43=

bit

dec

hex

Bit mapped register.

+008

 

 

 

 

 

 

 

6

64

40

Enable 1.5 sec, pause between off-hook and modem

 

 

 

 

 

answering.

 

 

 

 

 

 

 

 

7

128

80

Modem hang-up if the line condition does not permit

 

 

 

 

 

modem to run at the highest speed set by ‘&Nn’

 

 

 

 

 

command.

 

 

 

 

 

 

 

S44=

bit

dec

hex

Bit mapped register.

+000

 

 

 

 

 

 

 

3

8

8

ATDSn initiates auto-dial of the stored numbers

DSn

 

 

 

 

consecutively until connection is made (cyclic dial).

 

 

 

 

 

 

 

 

4

16

10

DSR follows DTR. (See also S41.5)

&S1

 

 

 

 

 

 

 

6

64

40

When selected with ‘&B0’, DTE speed fixed at 38400

&Bn

 

 

 

 

when the link speed is above 9600. DTE speed fixed at

 

 

 

 

 

9600 if link speed is 7200. If it is below 7200, DTE

 

 

 

 

 

speed follows link speed. When selected with &B1, DTE

 

 

 

 

 

speed fixed at current rate when an ARQ connection is

 

 

 

 

 

made, when a non-ARQ connection is made, DTE

 

 

 

 

 

speed follows the link speed. (See also S18)

 

 

 

 

 

 

 

 

7

128

80

Enable UK (Australian, Singapore, Indian, etc.,) type

 

 

 

 

 

“short-short ring” ring-back detection.

 

 

 

 

 

 

 

S45=

 

dec

hex

Delay during which the CND silence detection is

+100

 

 

0-255

0-FF

disabled, in 20 ms units. (See also S46)

 

 

 

 

 

 

 

Command Sets

4-25