Multitech BL-Series User Manual download pdf (Page 26)

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

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

Command: +IFC DTE-Modem Local Flow Control

Description: This extended-format compound parameter controls the operation of local flow control

between the DTE and the modem during the data state when V.42 error control is used or

when fallback to non-error control mode is specified to include buffering and flow control. It

accepts two numeric subparameters.

Syntax: +IFC=[<modem_by_DTE>[,<DTE_by_modem>]]

Defined Values: <modem_by_DTE> Specifies method DTE will use to control flow of received data from the

modem.

0 None.

1 XON/XOFF on transmitted data; do not pass XON/XOFF characters to remote modem.

2 Circuit 133 (RR). (Default.)

3 DC1/DC3 on circuit 103 (TD) with DC1/DC3 characters being passed through to the

remote DCE in addition to being acted upon for local flow control <DTE_by_modem>

Specifies method modem will use to control flow of transmitted data from the DTE.

0 None.

1 XON/XOFF on received data.

2 CTS/RTS. (Default.)

Reporting Current or Selected Values:

Command: +IFC?

Response: +IFC: <modem_by_DTE>,<DTE_by_modem>

Example: +IFC: 2,2 For the defaults.

Reporting Supported Range of Parameter Values:

Command: +IFC=?

Response: +IFC: (<modem_by_DTE> range),(<DTE_by_modem> range)

Example: +IFC: (0-3),(0-2).

Command: +ILRR DTE-Modem Local Rate Reporting

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

+ILRR:<rate> information text is transmitted from the modem to the DTE.

Syntax: +ILRR=<value>

Defined Values: <value> Decimal number corresponding to the selected option.

0 Disables reporting of local port rate (+ILRR: is not transmitted). (Default.)

1 Enables reporting of local port rate (+ILRR: is transmitted).

Reporting Current or Selected Values:

Command: +ILRR?

Response: +ILRR: <current value> Example: +ILRR: 0 For the default setting

Reporting Supported Range of Parameter Values:

Command: +ILRR=?

Response: +ILRR: (<value> range) Example: +ILRR: (0,1)

Reported Rate: The <rate> reported is the current (negotiated or renegotiated) DTE-modem rate. If enabled,

intermediate result code is transmitted after any modulation, error control or data

compression reports are transmitted and before any final result code is transmitted. The

<rate> is applied after the final result code is transmitted.

The DTE-modem port rate changes only if neither buffered mode nor error controlled

means are enabled (+ES=x,0) and if the negotiated carrier rate (+MRR) does not match the

current DTE-modem port rate (autodetected from previous command line).

Syntax: +ILRR: <rate>[,<rx_rate>].

Defined Values: <rate> Decimal value representing the current (negotiated or renegotiated)

DTE-modem rate: 0, 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400

<rx_rate> Optional decimal value reporting the RXD rate, if it is different from the TXD rate: 0,

300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, or 230400

Example: +ILRR: 19200

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Multitech BL-Series User Manual Page 26

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