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
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
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