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At+frm receive data, At+frs receive silence, At+fth transmit data using hdlc framing – Siemens MC35 User Manual

Page 51: 22 at+frm receive data, 23 at+frs receive silence, 24 at+fth transmit data using hdlc framing

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AT Command Set

MC35_ATC_01_V03.02

Page 51 of 228

13.03.2002

3.22 AT+FRM Receive Data

Test command

AT+FRM=?

Response

(List of supported modulation modes s)

OK

Parameter

See write command

Write command

AT+FRM=>

This command causes the TA to enter the receiver-mode using the modulation
defined below. An ERROR response code results if this command is issued while
the modem is on-hook.

Response

CONNECT
If error is related to ME functionality:
ERROR

Parameter

96

V.29

9600 bps

72

V.29

7200 bps

48

V.27ter

4800 bps

24

V.27ter

2400 bps

Reference

TIA/EIA-578

Note

Used for Faxclass 1 only

3.23 AT+FRS Receive Silence

Write command

AT+FRS=

+FRS=n causes the TA to report an OK result code to the TE after 10 mil-
lisecond intervals of silence have been detected on the line. This command is
aborted if any character is received by the DTE. The modem discards the abort-
ing character and issues an OK result code. An ERROR response code results if
this command is issued while the mode is on-hook.

Response

OK
If error is related to ME functionality:
ERROR

Parameter

0 – 255 no. of 10 millisecond intervals

Reference

TIA/EIA-578

Note

Used for Faxclass 1 only

3.24 AT+FTH Transmit Data Using HDLC Framing

Write command

AT+FTH=

This command causes the TA to transmit data using HDLC protocol and the
modulation mode defined below. An ERROR response code results if this com-
mand is issued while the modem is on-hook.

Response

CONNECT

Parameter

3 V.21 Ch2

300 bps

Reference

TIA/EIA-578

Note

Used for Faxclass 1 only