Siemens MC55 AT 12.22 AT+FRH Receive Data Using Hdlc Framing, At+Frh=?, AT+FRH=mod, TIA/EIA-578

12.22AT+FRH Receive Data Using HDLC Framing

The AT+FRH command enables the TA to receive frames using the HDLC protocol and the modulation schemes defined in Section 12.1, FAX parameters. An ERROR response code results if the command is issued while the modem is on-hook. The test command can be used in off-hook mode to check the modulation schemes sup- ported by MC55.

Syntax

Test Command

AT+FRH=?

Response(s)

In off-hook mode only:

+FRH:(list of <mod>s)

OK

In on-hook mode:

ERROR

Write Command

AT+FRH=<mod>

Response(s)

CONNECT

If error is related to ME functionality

ERROR

Reference(s)

TIA/EIA-578

PIN	ASC0	ASC1	MUX1	MUX2	MUX3	Charge	 Last
!	%	!	%	!	!	!	! !

Note

•Used for Fax Class 1 only.

MC55_ATC_V04.00	Page 324 of 475	3/17/06
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