Comtrol DM ATS-NTe - Manual (Page 29)

PC104 RocketPort Option 29
RocketPort Serial Port Connectors
RocketPort Serial Port Connectors
The following subsections illustrate the pinouts for the quad- and octacable
connector types and how to build loopback plugs for testing serial ports.
DB9 Connectors This illustrates
the pinouts for
DB9 quad- or
octacables.
Building Additional
DB9 Loopback Plugs Loopback connectors are DB9 female serial port plugs that you can use to test
serial ports. The ATS-NTE is shipped with a a single loopback plug (RS-232/422)
that corresponds to your quad- or octacable type.
Note: You can run loopback tests with Test Terminal.
Wire the following pins together to build additional plugs or replace a missing RS-
232 loopback plug:
• Pins 1 to 4 to 6
• Pins 2 to 3
• Pins 7 to 8 to 9
Wire the following pins together for an RS-422 loopback plug:
• Pins 2 to 3
• Pins 7 to 8
DB25 Connectors This illustrates the pinouts for DB25 quad - or octacables.
Pin 1 Pin 6
RS-232
RI
CTS
RTS
DSR
GND
DTR
TxD
RxD
CD
Pin 1 Pin 6
RS-422
Not used
RxD+
TxD+
Not used
Not used*
Not used
TxD-
RxD-
Not used
Pin 1 Pin 6
RS-485
Not used
Not used
TxD/RxD+
Not used
Not used*
Not used
TxD/RxD-
Not used
Not used
* Pin 5 is tied to ground on the board,
but is not used in the cable.
Pin 1 Pin 5
Pin 6 Pin 9
RS-232 Only
(Back View) The RS-232 loopback plug
also works for RS-422.
Pin 1 Pin 5
Pin 6 Pin 9
RS-422 Only
(Back View)
Pin 1 Pin 14
TxD
RxD
RTS
CTS
DSR
Signal Gnd
DCD
DTR
RS-232
Pin 1
Pin 14
Signal Gnd
RS-422
Pin 1 Pin 14
TxD/RxD-
TxD/RxD+-
Signal Gnd
RS-485
RxD+
RxD-
TxD+
TxD-
RI