Telenetics 56 User Manual

Page 157

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AT Commands

Page 149

Command:

FIT?

Response: +FIT:

(<time>

range), (<action> range)

Example: +FIT:

(0-255),(0-1)

Table A-19. Inactivity Timer Start and Stop Events

On-line state

Start timer event

Stop timer event

Waiting for a command

modem sends final result code

DTE sends AT or “at”

Waiting for transmit data

modem sends CONNECT after
FTM or FTH command

DTE sends data

Waiting for transmit data

modem sends XO  or sets CTS
ON

DTE sends data

Waiting to deliver
received data

modem sends XOF  after FRM
or FRH command

DTE sends XO 

Waiting to deliver
received data

DTE sets V.24 Ckt 133 OFF after
FRM or FRH command

DTE sets V.24 Ckt 133
ON

+FPR - Fixed DTE Rate

This numeric extended-format parameter specifies the data rate at which the modem will
accept commands during on-line 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 the
issuance of any result code(s) associated with the current command line.

The <rate> specified does not apply in On

Line Data State if Normal Mode (Direct

Mode) of operation is selected.

Syntax

+FPR=<rate code>

Defined Values

<rate code> Specifies the DTE-modem interface operation rate in bits/s with

a rate code. The available rate codes are:

0 Automatic detection (default)

1 2400 bits/s (executes +IPR=2400)

2 4800 bits/s (executes +IPR=4800)

4 9600 bits/s (executes +IPR=9600)

8 19200 bits/s (executes +IPR=19200)

10 38400 bits/s (executes +IPR=38400)

18 57400 bits/s (executes +IPR=57400)

If unspecified or set to 0, automatic detection is selected and

the character format is also forced to autodetect, +ICF=0.
If the rate specified is not supported by the modem, an ERROR
result code will be returned.

Reporting Current or Selected Values
Command: +FPR?
Response: <rate

code>

Example 1:

0

For automatic rate detection.

Example 2:

18

For 57600 bits/s.

Reporting Supported Range of Parameter Values
Command: +FPR=?
Response:

(<rate code> range)

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