Rockwell RC336D, Command Reference Manual, Page: 59 / 168

Command Reference Manual
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Reporting Supported Range of Parameter Values
Command: +EB=?
Response: +EB: (<break_selection> range),(<timed> range), (default_length> range)
Example: +EB: (0),(0),(0)
3.2.5.3 +ESR - Selective Repeat
This extended-format numeric parameter controls the use of the selective repeat (SREJ) option in V.42.
Syntax
+ESR=[<value>] Decimal number 0 specifying that SREJ is not used.
Example:
+ESR: (0) For default settings.
3.2.5.4 +EFCS - 32-bit Frame Check Sequence
This extended-format numeric parameter controls the use of the 16-bit or 32-bit frame check sequence (FCS) option in V.42.
Syntax
+EFCS=[<value>]
Defined Values
<value> Decimal number 0 specifying the use of the 16-bit FCS specified in V.42.
Reporting Current or Selected Values
Command: +EFCS?
Response: +EFCS: <value>
Example: +EFCS: 0 For default setting.
Reporting Supported Range of Parameter Values
Command: +EFCS=?
Response: +EFCS: (<value> range)
Example: +EFCS: (0)
3.2.5.5 +ER - Error Control Reporting
This extended-format numeric parameter controls whether or not the extended-format "+ER: " intermediate result code is
transmitted from the modem to the DTE.
S95 bit 3 is reset to 0 for +ER=0 and is set to a 1 for +ER=1. The more recent setting of +ER or S95 bit 3, and the W
command setting, determines the actual error control result code reporting (see S95 Parameter and W Command).
+ER=[<value>]
Syntax
+ER=[<value>]
Defined Values
<value> A decimal number corresponding to the selected error control option:
0 = Error control reporting disabled (no +ER intermediate result code transmitted).
(Default.)
1 = Error control reporting enabled (+ER intermediate result code transmitted).
Reporting Current or Selected Values
Command: +ER?
Response: +ER: <current value>
Example: +ER: 0 for the default setting