Motorola MVME712B, MVME712A RTS4, GND Ground TRXC4, DTR4, CTS4, GND Ground DCD4, GND Ground RTXC4

Interconnect Signals

Table 3-4. Connector J2 Interconnect Signals (LCP2 Adapter) (Continued)

Pin	Signal	Signal Name and Description
Number	Mnemonic
48	RTS4	REQUEST TO SEND (serial port 4) - RTS is
		supplied by the terminal to the modem when it
		is required to transmit a message. With RTS off,
		the modem carrier remains off. When RTS is
		turned on, the modem immediately turns on the
		carrier.
49	GND	GROUND
50	TRXC4	TRANSMIT CLOCK (serial port 4) - this line can
		be conÞgured to clock output data to the
		modem from the terminal.
51	DTR4	DATA TERMINAL READY (serial port 4) - a
		signal from the terminal to the modem
		indicating that the terminal is ready to send or
		receive data.
52	CTS4	CLEAR TO SEND (serial port 4) - CTS is a
		function supplied to the terminal by the modem,
		and indicates that it is permissible to begin
		transmission of a message. When using a
		modem, CTS follows the off-to-on transition of
		RTS after a time delay.
53	GND	GROUND
54	DCD4	DATA CARRIER DETECT (serial port 4) - sent
		by the modem to the terminal to indicate that a
		valid carrier is being received.
55	GND	GROUND
56	RTXC4	RECEIVE CLOCK (serial port 4) - this line can
		be conÞgured to clock input data from a
		terminal to a modem.
57	GND	GROUND
58	TXD2	TRANSMIT DATA (serial port 2) - data to be
		transmitted is furnished on this line to the
		modem from the terminal.
59	GND	GROUND
60	RXD2	RECEIVE DATA (serial port 2) - data that is
		demodulated from the receive line is presented
		to the terminal by the modem.

3

MVME712A/D3 3-7