EverFocus EDR920 - Manual (Page 74)

APPENDIX
RS232
The pin assignment of the 9-pin D-SUB connector
D-SUB 9-pin connector
This Digital Video Recorder can be controlled by a computer or a terminal via a
standard D-SUB 9-pin RS-232 connector.
Transmission setting
There are 6 different speeds that can be used to transmit instruction or information through the
RS232 port on the device, 2400 baud, 4800 baud, 9600 baud, 19200 baud, 38400 baud,and
57600 baud. The default setting from the factory is 9600 baud.
Please refer to the CONTROL SETUP MENU 49 for the details.
NOT CONNECTED 9
NOT CONNECTED 8
NOT CONNECTED 7
NOT CONNECTED 6
GROUND 5
NOT CONNECTED 4
R x D (Received Data) 3
T x D (Transmitted Data) 2
NOT CONNECTED 1
NAME PIN #
Digital Video Recorder
NOT CONNECTED 9
NOT CONNECTED 8
NOT CONNECTED 7
NOT CONNECTED 6
GROUND 5
NOT CONNECTED 4
T x D (Transmitted Data) 3
R x D (Received Data) 2
NOT CONNECTED 1
NAME PIN #
HOST
APPENDIX A : RS232 specifications
73