Motorola MVME712B - Manual (Page 51)

Support Information
3-18 MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual
3
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
Table 3-12. Connector P2, J11 Interconnect Signals (MVME712 x) (Continued)
Pin Number
Signal
Mnemonic
Signal Name and Description
P2 J11