Multitech MT9234ZBAUSBCDC Guía de usuario descargar pdf (Pagina 23)

Chapter 1 – AT Commands, S-Registers, and Result Codes

Multi-Tech Systems, Inc. AT Commands for the MultiModem & SocketModem MT9234 Series (S000434H) 23

Result Codes: OK if <v8o> = 1, 6 and <v8a> = 1, 5 and <v8cf> = 0 to FF and <v8b> = 0 to 2.

ERROR if <v8o> ≠ 1, 6 or <v8a> ≠ 1, 5 or <v8cf> ≠ 0 to FF or <v8b> ≠ 0 to 2.

OK if <signal> = 0–10 and <sig en> = 0, 1 and <msg en> = 0, 1 and <supp delay> =

0,1.

ERROR if <signal> ≠ 0 to 10 or <sig en> ≠ 0, 1 or <msg en> ≠ 0, 1 or <supp delay> ≠

0,1.

+A8T Send V.8 bis Signal and/or Message

Description: Use this command to send a V.8 bis signal or message from the local DCE. This

command is only supported when V.80 is enabled.

Syntax: AT+A8T=<signal>,<1st message>,<2nd message>,<sig en>,<msg en>,<supp delay>

<signal> Values: 0 None

1 Initiating Mre.

2 Initiating MRd.

3 Initiating CRe, low power

4 Initiating CRe, high power

5 Initiating CRd

6 Initiating Esi

7 Responding MRd, low power

8 Responding MRd, high power

9 Responding CRd

10 Responding Esr

<sig_en> Values: 0 Enable detection of initiation signals. Default.

1 Enable detection or responding signals

<msg_en> Values: 0 Disable detection of messages. Default.

1 Enable detection of V.8 bis messages

<supp_delay> Values: 0 No delay inserted. Default.

1 Insert 1.5 second delay between transmitted V.8 bis signal and the subsequent

V.8 bis message

Reporting: +A8T? Reports current or selected values.

+A8T=? Reports supported parameter values.

Result Codes: OK if <signal> = 0 to 10 and <sig en> = 0, 1 and <msg en> = 0, 1 and <supp delay>

= 0,1.

ERROR if <signal> ≠ 0 to 10 or <sig en> ≠ 0, 1 or <msg en> ≠ 0, 1 or <supp delay> ≠

0,1.

+DCS Select V.42bis or V.44 Data Compression

Description: Use this command to configure the available compression algorithms. The <v42bis>

parameter enables or disables the V.42 bis and the <v44> parameter enables or

disables V.44. This command works in conjunction with the %C command and the

result of either the %C command or the +DCS command replaces the current data

compression configuration.

Syntax: AT+DCS=<v42bis>,<v44>

Values: 0,0 V.42bis and V.44 data compression are both disabled.

0,1 V.42bis is disabled; V.44 data compression is acceptable.

0,2 V.42bis is disabled; V.44 only when connected to a V.92 server.

1,0 V.42bis is acceptable; V.44 data compression is disabled.

1,1 V.42bis is acceptable; V.44 data compression is acceptable.

1,2 V.42bis is acceptable; V.44 only when connected to a V.92 server.

Reporting: +DCS? Reports current or selected values.

+DCS=? Reports allowed parameter values.

Result Codes: OK if <v42bis> = 0, 1 and <v44> = 0 to 2.

ERROR if <v42bis> ≠ 0, 1 or <v44> ≠ 0 to 2.

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Multitech MT9234ZBAUSBCDC Guía de usuario Pagina 23

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