Multitech BL-Series Manual de usuario descargar pdf (Pagina 27)

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

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

Command: +IPR Fixed DTE Rate

Description: This numeric extended-format parameter specifies the data rate at which the modem will

accept commands during online operation. It may be used to select operation at rates at

which the modem is not capable of automatically detecting the data rate being used by the

DTE. Specifying a value of 0 disables the function and allows operation only at rates

automatically detectable by the modem. The specified rate takes effect following any

issued result code(s) associated with the current command line.

The <rate> specified does not apply in OnLine Data State if Normal Mode (Direct Mode) of

operation is selected.

Syntax: +IPR=<rate>

Defined Values: <rate> Specifies the DTE-modem interface operation rate in bits/s.

The available rates are: 0, 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, or

230400.

If unspecified or set to 0, automatic detection is selected and the character format is also

forced to autodetect, +ICF=0.

If the specified rate is not supported by the modem, an ERROR result will be returned.

Reporting Current or Selected Values:

Command: +IPR?

Response: +IPR: <rate>

Example 1: +IPR: 0 For automatic rate detection.

Example 2: +IPR: 115200 For 115200 bps.

Reporting Supported Range of Parameter Values:

Command: +IPR=?

Response: +IPR (<rate> range)

Example: +IPR: (0,300,1200,2400,4800,9600,19200,38400,57600,115200, 230400)

Command: +MR Modulation Reporting Control

Description: This extended-format numeric parameter controls whether or not the extended-format

+MCR:<carrier> and +MRR:<rate> intermediate result codes are transmitted from the

modem to the DTE. If enabled, +MCR:<carrier> and +MRR:<rate> intermediate result

codes represent the current (negotiated or renegotiated) modulation <carrier> and <rate>

that are transmitted at the point during connect negotiation (handshaking) at which the

modem has determined which modulation and rate will be used, i.e., before any Error

Control or Data Compression reports are transmitted, and before any final result code

(e.g., CONNECT) is transmitted.

S95 bit 2 is reset to 0 for +MR=0 and is set to a 1 for +MR=1 or +MR=2. The more recent

setting of +MR or S95 bit 2, and the W command setting, determines modulation result

code reporting (see S95 Parameter and W Command).

Syntax: +MR=[<value>]

Defined Values: <value> A decimal number corresponding to the selected option:

0 Disables reporting of modulation connection (+MCR: and +MRR: are not transmitted).

(Default.)

1 Enables reporting of modulation connection (+MCR: and +MRR: are transmitted with tx

rate, rx rate).

2 Enables reporting of modulation connection (+MCR: and +MRR: are transmitted with rx

rate only).

Reporting Current or Selected Values:

Command: +MR?

Response: +MR: <current value>

Example: +MR: 0 For default setting

Reporting Supported Range of Parameter Values:

Command: +MR=?

Response: +MR: (<value>range)

Example: +MR: (0-2)

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Multitech BL-Series Manual de usuario Pagina 27

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