Service Class 1 Commands - Multitech SocketModem MT5600SMI-32 Developer's Manual

Service Class 1 Commands

Command: +FAR
Description:
Defined Values:
Reporting Current or Selected Values:
Reporting Supported Range of Parameter Values:
Command: +FCL
Description:
Defined Values:
Reporting Current or Selected Values:
Reporting Supported Range of Parameter Values:
Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer's Guide
Adaptive Reception Control
If Adaptive Reception is enabled, the modem adaptively detects the selected
message carrier or V.21 control messages. If the expected carrier is detected,
the modem operates as specified in the respective +FRM=<mod or
+FRH=<mod commands. If V.21 flag preamble is detected instead, the
modem issues a +FRH:3 intermediate result code, and then executes an
implied +FRH=3 command.
<value> Decimal number corresponding to the selected option.
0 Disable Adaptive Reception. (Default.)
1 Enable Adaptive Reception.
Command: +FAR?
Response: +FAR: <value
Example: +FAR: 0 For the default setting.
Command: +FAR=?
Response: +FAR: (<value> range )
Example: +FAR: (0,1)
Carrier Loss Timeout
This parameter allows the DTE to select the modem's loss-of-carrier delay
between initial loss-of-carrier and qualified loss-of-carrier, when the modem
will give up and exit a receive mode. Intermediate (less than FCL timeout)
loss-of-carrier should be indicated by insertion of the SQ-BAD signal quality
indicator in the received data stream.
In unframed receive modes, if the modem detects RTC as described in
Recommendation T.30 prior to initial loss of the high speed carrier, or if the
modem detects V.21 carrier after initial loss of high speed carrier, then the
modem immediately accepts the loss-of-carrier as qualified, without waiting for
the FCL timer to expire.
In HDLC receive modes, if the modem detects HDLC abort prior to initial loss
of the high speed carrier, or if the modem detects V.21 carrier after initial loss
of high speed carrier, then the modem l immediately accepts the loss-of-
carrier as qualified, without waiting for the FCL timer to expire.
<value> Decimal number representing the loss-of-carrier delay time in units of
100 ms. The range is 0 - 255.
Command: +FCL?
Response: +FCL: <time
Example: +FCS: 0 For the default setting.
Command: +FCL=?
Response: +FCL: (time range)
Example: +FCL: (0-255)
Chapter 6 – Fax Class 1 and Class 1.0 Commands
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