Motorola MVME712B - Manual (Page 39)

Support Information
3-6 MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual
3
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.
35 TXD1 TRANSMIT DATA (serial port 1) - data to be
transmitted is furnished on this line to the
modem from the terminal.
36 GND GROUND
37 RXD1 RECEIVE DATA (serial port 1) - data that is
demodulated from the receive line is presented
to the terminal by the modem.
38 GND GROUND
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.
40,41 GND GROUND
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
motmots follows the off-to-on transition of RTS
after a time delay.
43 GND GROUND
44 TXD4 TRANSMIT DATA (serial port 4) - data to be
transmitted is furnished on this line to the
modem from the terminal.
45 GND GROUND
46 RXD4 RECEIVE DATA (serial port 4) - data that is
demodulated from the receive line is presented
to the terminal by the modem.
47 GND GROUND
Table 3-4. Connector J2 Interconnect Signals (LCP2 Adapter) (Continued)
Pin
Number
Signal
Mnemonic
Signal Name and Description