Motorola and V.32bis, V.34-SDC, 326X V.34 manual Parity, RTS Control, Auto Retrain

Configuration Quick-Reference

Table A-1.

AT Commands, Cross-Referenced to Front Panel Options (Continued)

AT	Parameter &
Command	Option	Description
AT*RE5	=FP/108.ACU	With this option, off-to-on transitions of this signal from the DTE activate the ACU. This lets
		the modem accept dial commands. With this option, either modem can enable the ACU when
		the connected DTE turns Circuit 116 from off to on.
AT*RE6	=FP/116.ACU	With this option, off-to-on transitions of this signal from the DTE activate the ACU. This lets
		the modem accept dial commands to initiate restoral. With this option, either modem can
		enable the ACU when the connected DTE turns Circuit 116 from off to on.
	Parity	Parity
		When using the ASCII character set, you must select the parity used by the modem and DTE.
		The Parity option applies to asynchronous and character-synchronous data formats.
		When set to V.25, the following applies:
		Async: 7 Data Bits, Parity=even, Stop Bits=1
		Bitsync: 7 Data Bits, Parity=space, Stop Bits=1 or 8 Data Bits, Parity=none, Stop Bits=1
AT*RP0	=V.25	Charsync: 7 Data Bits, Parity=odd, Stop Bits=1
AT*RP1	=Even	7 Data Bits, Parity=even, Stop Bits=1
AT*RP2	Parity=Odd	7 Data Bits, Parity=odd, Stop Bits=1
AT*RP3	=Mark	7 Data Bits, Parity=mark, Stop Bits=1 or 7 Data Bits, Parity=none, Stop Bits=2
AT*RP4	=Space	7 Data Bits, Parity=space, Stop Bits=1 or 8 Data Bits, Parity=none, Stop Bits=1
	RTS	RTS Control
		The AT*RS command determines how the modem interprets the RTS signal. The DTE
		signals the modem with RTS on EIA/TIA 232-D Pin 4 (V.24 Circuit 105).
AT*RS0	=Normal	The DTE controls data transmission with RTS.
AT*RS1	=High	The modem sets RTS high. Use this setting if the DTE does not provide RTS. If you are using
		Normal or Reliable data transfer mode and you are using RTS/CTS flow control, this setting is
		overridden and RTS operates as if RTS=Normal.
AT*RS2	=Remote	This setting applies to simulated half-duplex applications and works only if the remote modem
		also supports RTS/DCD signaling. For this application to work properly, the DCD option at the
		remote site must be set to Remote. Coordinate your setting with the remote site.
	Retrain	Auto Retrain
		Enables the auto-retrain feature. When enabled, the modem retrains if the specified bit error
		rate is exceeded. Enable Retrain for most applications because retrains allow the modem to
		compensate for changing line conditions.
AT*RT0	=Off	The modem does not automatically initiate retrains, but responds to retrains from the remote
		modem.
AT*RTl	=Low BER	The Low BER setting is more sensitive than the High BER setting.
		Using V.34, V.32bis, V.32, or V.32 Uncoded, the modem retrains when the bit error rate (BER)
		exceeds approximately 10-4for eight seconds.
		Using V.22bis, the modem retrains when the bit error rate (BER) exceeds approximately 10-4
		for one second.

Gray shading indicates country-specific options. See Appendix C for your country’s options.

A-28 Configuration Quick Reference