Motorola MVME712AM, MVME712A/D3, MVME712-12, MVME712B, MVME712-13 user manual A16

3

Support Information

Table 3-12. Connector P2, J11 Interconnect Signals (MVME712x) (Continued)

Pin Number		Signal	Signal Name and Description
P2	J11	Mnemonic
A16	32	RTS3	REQUEST TO SEND (serial port 3) - 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.
C17	33	DCD3	DATA CARRIER DETECT (serial port 3) - sent by the
			modem to the terminal to indicate that a valid carrier
			is being received.
A17	34	DTR3	DATA TERMINAL READY (serial port 3) - a signal
			from the terminal to the modem indicating that the
			terminal is ready to send or receive data.
C18	35	TXD1	TRANSMIT DATA (serial port 1) - data to be
			transmitted is furnished on this line to the modem
			from the terminal.
A18	36	GND	GROUND
C19	37	RXD1	RECEIVE DATA (serial port 1) - data that is
			demodulated from the receive line is presented to the
			terminal by the modem.
A19	38	GND	GROUND
C20	39	RTS1	REQUEST TO SEND (serial port 1) - 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.
A20,C21	40,41	GND	GROUND
A21	42	CTS1	CLEAR TO SEND (serial port 1) - 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.
C22	43	GND	GROUND
A22	44	TXD4	TRANSMIT DATA (serial port 4) - data to be
			transmitted is furnished on this line to the modem
			from the terminal.
C23	45	GND	GROUND

3-18 MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual