Motorola MVME712-10 User Manual page 38

Support Information
Table 3-5: I/O Connector J9 Interconnect Signals (Continued)
Pin Number
3
32
33
34
35
36
37
38
39
40
41
3-8
Signal
Mnemonic
SCTS1 CLEAR TO SEND (serial port 1) - CTS is a func-
tion supplied to the terminal by the modem, and
indicates that it is permissible to begin transmis-
sion of a message. When using a modem, CTS fol-
lows the off-to-on transition of RTS after a time
delay.
SDCD1 DATA CARRIER DETECT (serial port 1) - sent by
the modem to the terminal to indicate that a valid
carrier is being received.
SDSR1 DATA SET READY (serial port 1) - DSR is a func-
tion supplied by the modem to the terminal to
indicate that the modem is ready to transmit data.
GND GROUND
STXCI1 TRANSMIT CLOCK (serial port 1) - this line can
be conÞgured to clock output data to the modem
from the terminal.
SRXCI1 RECEIVE CLOCK IN (serial port 1) - this line can
be conÞgured to clock input data from a terminal
to a modem.
GND GROUND
STXD2B TRANSMIT DATA (serial port 2) - data to be
transmitted is furnished on this line to the modem
from the terminal.
SRTS2B REQUEST TO SEND (serial port 2) - RTS is sup-
plied 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.
SDTR2B DATA TERMINAL READY (serial port 2) - a sig-
nal from the terminal to the modem indicating
that the terminal is ready to send or receive data.
MVME712-10 Transition Module and I/O Distribution Set UserÕs Manual
Signal Name and Description