Motorola V.34-SDC, and V.32bis, 326X V.34 Sync Idle, V25 Resp, LPDA2 Addr, LPDA2 Det, DL TX Level

Table A-2.

Front Panel Configuration Options (Continued)

	Parameter &
326X Menu	Option	Description
	Sync Idle	Applies to synchronous applications only (direct synchronous or SDC operating modes). Your
		modem sends Marks or Characters on EIA/TIA 232-D Pin 3 (V.24 Circuit 104) to the DTE when
		it has no messages to send.
	=Mark	Modem sends continuous Marks (or one bits) on EIA/TIA 232-D Pin 3 (V.24 Circuit 104) to the
		DTE when it has no messages to send.
	:Char	Applies to V.25bis, and LPDA2 ACUs.
		If the modem is configured for V.25bis and V25Form=Charsync, it sends a continuous stream of
		SYN (synchronizing) Characters on EIA/TIA 232-D Pin 3 (V.24 Circuit 104) when it has no
		messages to send. If V25Form=Bitsync, it sends continuous flags (7E hexadecimal) when it has
		no messages to send.
		If the modem is configured for LPDA2, it sends continuous flags (7E hexadecimal) when it does
		not have a message to send.
	V25 Resp	When using the V.25bis ACU, the modem always indicates a valid connection after the local
		modem and remote modem switch to data mode. You can receive an indication of call progress
		at your DTE. The V25 Resp option chooses the response you receive.
	=V25bis	The modem sends a VAL message upon receipt of the dial command and a CNX message once
		an answer-back tone is received from the remote modem.
	:V25rate	The modem sends a VAL message upon receipt of the dial command and a CNX message
		followed by the data rate once the modem switches to data mode.
	:VALOnly	The modem sends a VAL message when the modems switch to data mode.
	V25 Resp:	The modem does not send a message to the DTE.
	LPDA2 Addr	Lets you select the modem’s address. (See Chapter 2 of the 326X Series Modem Reference
		Guide for details.)
	LPDA2 ID	Allows the modem type to be returned in the data field response field.
	=326X	Sends 3260 in data response.
	:7855	Sends 7855 in data response.
	LPDA2 Det
	=Enab	LPDA2 commands are recognized in the data stream and the commands are processed.
	:Disab	LPDA2 command frames are not recognized as commands.
TELCO	DL TX Level	Displays the modem’s dial line transmit level, which is set for your country’s requirements.
OPT’S
	=0 to -15	The modem is set to transmit at a level in the 0 to -15 dBm range.

LL TX Level Displays the modem’s leased line transmit level, which is set for your country’s requirements.

=0 to -15	The modem is set to transmit at a level in the 0 to -15 dBm range.
	Adjustable Transmit Levels—V.34 Modulation Mode

In the V.34 modulation mode, the local and remote modems negotiate a transmit level (for the dial/leased line) during the training sequence. This allows the modems to select the lowest possible transmit level in order to maximize the signal to echo level in the receiver. A typical range for the reduction of the transmit level is 0 to -14 dBm.

NOTE: Although the modem negotiates a transmit level that may differ from the rate indicated for your country, the front panel DL TX and LL TX Levels options remain the same. The CQMS parameter, Tx Level, however, displays the actual transmit level in use for a connection.

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

Configuration

Quick-Reference

Configuration Quick Reference A-35