Motorola V.34-SDC, and V.32bis, 326X V.34 manual Telco, Line, AT Form, Pulse Cycle

Table A-1.

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

AT	Parameter &
Command	Option	Description
AT&I3	Modem ID# 1	Product code
AT&I4	Modem ID# 1	Network control address (optional)
AT&I5	Modem ID# 1	Device serial number
	Telco	Dial Line Jack Type
AT&J0/	=RJ11C	This 6-pin modular jack type is the most common permissive data mode (voice) jack
AT&J1		arrangement found in the home or office and operates on a single-line bridged tip-and-ring
		voice or low-speed data application service.
AT&J2	=RJ45S	This 8-pin modular jack type is the most common programmable jack arrangement and permits
		the use of an exclusion key telephone. This jack also operates on a single-line bridged tip-and-
		ring voice or low-speed data application service.
		NOTE: When installing the modem in a PBX environment, the interface to the PBX should be
		a voice grade jack (RJ11). Although an RJ11 jack is installed, Motorola recommends that
		Telco=RJ45S. This optimizes modem performance the when operating at high data rates over a
		PBX. In a normal Telco-supplied loop situation, the telco options setting should match the jack
		type installed.
AT&J3	=RJ16CS	This 6-pin modular jack type is a special permissive data mode jack arrangement that allows
		use of an exclusion key telephone.
AT&J4	=RJ4MB	This 8-pin modular programmable data mode jack arrangement supports Make Busy operation.
		Using this jack type, you can make the modem appear to be off-hook to the central telephone
		office. Note: In modems in the U. S. A. and Canada, the Make Busy function operates only in
		nest card modems. (Make Busy settings display in standalone modems, but are not active.)
	Line	Line Type
AT&L0	=Dial	The modem communicates over dial lines in dial applications only.
AT&L1	=2W Lease	The modem communicates over a 2-wire leased line. The ACUs (AT and V.25bis) are not
		functional when the modem is connected to a leased line.
AT&L2	=4W Lease	The modem communicates over a 4-wire leased line. The ACUs (AT and V.25bis) are not
		functional when the modem is connected to a leased line.
	AT Form	AT Data Format
		Determines the format of the data when ACU Select is set to AT.
AT&M0	=Async	The modem communicates asynchronously in command and data mode.
AT&M1	=Sync Data	The modem communicates asynchronously when in command mode (disconnected from the
		dial line), and synchronously when in data mode.
AT&M2	=DTR Dial	When an off-to-on DTR transition is detected, the modem dials the number stored in the
		memory location designated by the Default Dial option. Once connected, the modems transmit
		data synchronously. If DTR transitions from on-to-off, the modem hangs up and returns to the
		asynchronous command mode.
AT&M3	=Man Dial	DTR signals toggle between talk and data mode. With DTR off, numbers can be dialed from a
		telephone. Once an answer tone is heard, the telephone is hung up, and DTR is raised; the
		modems connect and send data sychronously.
	Pulse Cycle	Pulse Cycle
AT&P0	=40%	The make/break ratio is 40:60.
AT&P1	=33%	The make/break ratio is 33.5:66.5.
AT&P2	=38%	The make/break ratio is 38.5:61.5.

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

Configuration

Quick-Reference

Configuration Quick Reference A-11