Multi-Tech Systems MTS2SA-T User Manual

Page 126

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Chapter 10

− Modem Mode AT Commands, S-Registers, and Result Codes

Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A)

126

Register Unit Range Default Description

S95

0

Extended Result Codes Control.

A bit set to a 1 in this parameter,

in conjunction with the W command, will enable the corresponding
extended result code. *

The +MR, +ER, and +DR settings also control S95 bits 2, 3, and 5,

respectively. The more recent settings of +MR, +ER, and +DR, or
host writing of S95 bits 2, 3, and 5, along with the W command
setting, determine the corresponding actual result code reporting (see
+MR, +ER, DR, and W commands).
Bit 0 CONNECT result code indicates DCE speed instead of DTE speed.
Bit 1 Append/ARQ to CONNECT XXXX result code in error-correction

mode (XXXX = rate).

Bit 2 Enable +MCR: XXXX result code (XXXX = modulation) and

+MRR: XXXX result code (XXXX = rate). (Also see +MR.)

Bit 3 Enable +ER: XXXX result code (XXXX = protocol identifier).
Bit 4 Reserved.
Bit 5 Enable +DR: XXXX result code (XXXX = compression type).

Bits 6-7 Reserved.

Note:

Bits 2-5 are reserved in V.22bis.

S210

0–255 13

(0Dh) V.34 Symbol Rate. The bits in this parameter control V.34 symbols

rates and enable/disable V.34 asymmetric rates. This parameter is
used for diagnostic purposes only.

Default: 13 (0Dh) (00001101b)

Bits 0 -2 Selects the range of allowed V.34 symbol rates.

2

1

0

Symbol Rates (baud)

0 0 0 2400

only

0 0 1 2400

only

(no

2734)

0 1 0 2400,

2800

0 1 1 2400,

2800,

3000

1 0 0 2400,

2800,

3000,

3200

1

0

1

2400, 2800, 3000, 3200, 3429 (Default.)

Bit 3 Enable/disable V.34 asymmetric rates.

0 =

Disable asymmetric rates

1 =

Enable asymmetric rates (Default.)

Bits

4-7

Reserved.

Examples

S210=13

Enable asymmetric rates with all symbol rates available

(Default.).

S210=5

Disable asymmetric rates with all symbol rates

available.

S210=8

Enable asymmetric rates with only 2400 baud available.

S210=11

Enable asymmetric rates with 2400 to 3000 baud

available.

* Register value may be stored on one of two user profiles with the &W command in all except V.22bis.

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