Motorola MVME760 User Manual page 35

Table 3-1. Connector P2 Interconnect Signals (MVME760) (Continued)
Pin
Number Signal
Mnemonic
P2
C25 DTR2
A25 GND
C26 RXD3
A26 RTXC3
C27 TXD3
A27 TRXC3
C28 RXD4
A28 RTXC4
C29 TXD4
A29 TRXC4
C30 -12V
A30 MXDI
C31 MXDO
A31 MXSYNC_
C32 GND
A32 MXCLK
Signal Name and Description
DATA TERMINAL READY (serial port 2) - a signal from the
terminal to the modem indicating that the terminal is ready
to send or receive data.
SIGNAL GROUND
RECEIVE DATA (serial port 3) - data that is demodulated
from the receive line is presented to the terminal by the
modem.
RECEIVE CLOCK (serial port 3) - this line can be
configured to clock input data from a terminal to a modem.
TRANSMIT DATA (serial port 3) - data to be transmitted is
furnished on this line to the modem from the terminal.
TRANSMIT CLOCK (serial port 3) - this line can be
configured to clock output data to the modem from the
terminal.
RECEIVE DATA (serial port 4) - data that is demodulated
from the receive line is presented to the terminal by the
modem.
RECEIVE CLOCK (serial port 4) - this line can be
configured to clock input data from a terminal to a modem.
TRANSMIT DATA (serial port 4) - data to be transmitted is
furnished on this line to the modem from the terminal.
TRANSMIT CLOCK (serial port 4) - this line can be
configured to clock output data to the modem from the
terminal.
-12Vdc Power
Serial MULTIPLEXER DATA IN - signal driven to the main
board.
Serial MULTIPLEXER DATA OUT - received from main
board.
MULTIPLEXER SYNC - Serial Multiplexer sync signal.
SIGNAL GROUND
MULTIPLEXER CLOCK - Serial Multiplexer clock signal.
P2 Connector
3
3-13