Telenetics 56 - Manual (Page 100)

AT Commands
Page 92
The options are:
0 CRC generation and checking disabled (default).
1 In Framed sub-Mode, the 16-bit CRC is generated by the
modem in the transmit direction, and checked by the modem
in the receive direction.
<nrzi_en> Specifies if Non Return to Zero Inverted (NRZI) encoding is to be used by
the modem for transmit and receive data. The options are:
0 NZRI encoding and decoding disabled (default and fixed).
<syn1>, <syn2> Specifies the octet value(s) to be used while performing character-
oriented framing. <syn1> is to be commanded to 255 (FFh); <syn2> is
not to be commanded.
Reporting Selected Options
The modem reports the selected options in response to the following command:
+ESA?
The response is:
+ESA: <trans_idle>,<framed_idle>,<framed_un_ov>,<hd_auto>,
<crc_type>,<nrzi_en>,<syn1>,<syn2>
Example:
+ESA?
+ESA: 0,0,0, ,0,0,255, For the defaults.
Reporting Supported Options
The modem reports the supported options in response to the following command:
+ESA?
The response is:
+ESA: (list of supported <trans_idle> values), (list of supported
<framed_idle>values),(list of supported <framed_un_ov>
values), (list of supported <hd_auto>
values),(list of supported <crc_type> values), (list of supported
<nrzi_en> values), (list of supported <syn1> values), (list of
supported <syn2> values)
Example:
+ESA?
+ESA: (0),(0),(0-1), ,(0-1),(0),(255),
+H - Enable/Disable RPI
This command enables or disables Conexant Protocol Interface (RPI) processing and sets
the DTE speed.
Syntax +H=<value>
Defined Value
<value> Decimal number corresponding to the selected option.
0 Disable protocol interface and video ready mode.
1 Enable RPI mode and set DTE speed to
19200bps.
2 Enable RPI mode and set DTE speed to
38400bps.
3 Enable RPI mode and set DTE speed to
57600bps.
11 Enable RPI+ mode. When in RPI+ mode, a link is
established between the modem and the WinRPI
or WinRPI95 host PC software driver to allow the
modem to support protocol (V.42bis/LAP-M/MNP2-
5) connections with a remote modem. This
command should only be used when the WinRPI