Motorola MVME712B - Manual (Page 53)

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
Table 3-13 .
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.
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.
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.
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.
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