Motorola MVME712A/D3 Benutzerhandbuch
Support Information
3-20
MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual
3
Connector J12 Interconnect Signals (MVME712-13, MVME712AM)
Connector J12 is an RJ-11 modular jack on the front panel of the MVME712-13
and MVME712AM. Each pin connection, signal mnemonic, and signal
characteristic for the connector is listed in
and MVME712AM. Each pin connection, signal mnemonic, and signal
characteristic for the connector is listed in
C31
61
CTS2
CLEAR TO SEND (serial port 2) - 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.
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.
A31
62
RTS2
REQUEST TO SEND (serial port 2) - 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.
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.
C32
63
DCD2
DATA CARRIER DETECT (serial port 2) - sent by the
modem to the terminal to indicate that a valid carrier
is being received.
modem to the terminal to indicate that a valid carrier
is being received.
A32
64
DTR2
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.
from the terminal to the modem indicating that the
terminal is ready to send or receive data.
Table 3-13. Connector J12 Interconnect Signals (MVME712-13/12AM)
Pin
Number
Signal
Mnemonic
Signal Name and Description
1
Not used.
2
TIP
Tip side of telephone line.
3
RING
Ring side of telephone line.
4
Not used.
Table 3-12. Connector P2, J11 Interconnect Signals (MVME712
x) (Continued)
Pin Number
Signal
Mnemonic
Signal Name and Description
P2
J11