Multitech BL-Series Manual de usuario descargar pdf (Pagina 11)

AT Commands for the MT5656ZDX, MT5600ZDX, MT5600BA/BL-Series Modems

Multi-Tech Systems, Inc. Commands Reference Guide (PN S000273D)

Command: &Mn Communications Mode

Values: n = 0–3

Default: 0

Description: This command determines the DTR operating mode. The modem treats the &M command

as a subset of the &Q command.

&M0 Selects direct asynchronous operation. Command sequence &M0\N0 selects normal

buffered mode, but command sequence \N0&M0 selects direct mode. This is

because the \N0 command is analogous to the &Q6 command.

&M1 Selects synchronous connect mode with asynchronous offline command mode.

&M2 Selects synchronous connect mode with asynchronous offline command mode.

Same as &M1 except that &M2 enables DTR dialing of directory slot 0. The modem

disconnects if DTR is low for more than the period stored in S25.

&M3 Selects synchronous connect mode. This mode allows DTR to act as a talk/data

switch. A call is manually initiated while DTR is inactive; when it becomes active, the

handshake proceeds in originate or answer mode according to S14 bit 7.

Command: &Pn Make/Break Dial Ratio

Values: n = 0, 1, 2, 3

Default: Varies by country

Description: &P0 Make/Break dial ratio of 39/61 at 10 pps

&P1 Make/Break dial ratio of 33/67 at 10 pps

&P2 Make/Break dial ratio of 39/61 at 20 pps

&P3 Make/Break dial ratio of 33/67 at 20 pps

Command: &Qn Sync/Async Mode

Values: n = 0-3, 5, 6

Default: 5

Description: This command is an extension of &M and is used to control which connection modes are

permitted. It is used in conjunction with S36 and S48. (See also the \N command.)

&Q0 Selects direct asynchronous operation. See &M0.

&Q1 Selects synchronous connect mode with asynchronous offline command mode.

See &M1. Serial interface operation only.

&Q2 Selects synchronous connect mode with asynchronous offline command mode;

enables DTR dialing of directory 0. See &M2. Serial interface only.

Note: MT5600ZDX does not support synchronous mode.

&Q3 Selects synchronous connect mode with asynchronous offline command mode;

enables DTR to act as a talk/data switch. See &M3. Serial only.

Note: MT5600ZDX does not support synchronous mode.

&Q5 The modem will try to negotiate an error-corrected link. It can be configured using

S36 to determine whether a failure will result in disconnecting or falling back to a

non-error-correction connection. See also \N3.

&Q6 Selects asynchronous operation with speed buffering and no error correction.

Same as \N0.

Command: &Rn Clear to Send (CTS) Control

Values: n = 0 or 1

Default: 1

Description: &R0 Let the CTS state follow the RTS state when online..

&R1 Force CTS high (ON).

Note: This command applies only in synchronous mode.

MT5600BA LCD:

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 59 60

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Multitech BL-Series Manual de usuario Pagina 11

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