Matrox 4Sight EV6 Installation And Hardware Reference page 79

The pins in the bottom DB-9 connector have the following pinout:
Pin Signal
1 CD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
The pins in the top serial port connector (RS-232/RS-485 standard) have the
following pinout:
Pin Hardware
signal name
1 NC
2 RXD
3 TXD
4 NC
5 GND
6 NC
7 RTS
8 CTS
9 NC
1. To set the RS-485 termination, see RS-485 termination connector subsection of the Pinout descriptions of internal connec-
tors section, later in this appendix.
Pinout descriptions of external connectors
1
6 9
I/O
RS-232 standard
I Not connected.
I Receive data.
O Transmit data.
O Not connected.
- Ground.
I Not connected.
O Request to send.
I Clear to send.
I Not connected.
5
Description
Carrier detect.
Receive data.
Transmit data.
Data terminal ready.
Ground.
Data set ready.
Request to send.
Clear to send.
Ring indicator.
Description
RS-485 standard with resistor
termination not activated
Not connected.
RXD -.
TX -.
Not connected.
Ground.
Not connected.
TX +.
RXD +.
Not connected.
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