User Guide

Appendix D - The RS232 Interface AXIS 2400/2401 Administration Manual
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Appendix D - The RS232 Interface
As a complement to the information provided in Pan Tilt Settings, on page 32, this appendix
discusses the functionality of the RS232 serial interface and provides detailed instructions on how
to install a standalone Pan/Tilt device to the AXIS 2400/2401 Video Server.
Two 9 pin D-sub connectors provide the physical connection for the RS232 serial interface of the
AXIS 2400/2401. These connectors are provided for connecting accessory equipment; typically
standalone Pan/Tilt devices for remote positioning of connected video cameras.
The Physical Connector
A diagram of an RS232 connector and the AXIS 2400/2401 pin assignment table are detailed
below.
Notes: The pinout is different for each supported serial port
NC = Not connected
Camera Positioning
The AXIS 2400/2401 can control the position of connected cameras in three different ways:
• Pan Tilt Control using the Web Administration Tools: where, the position of the selected video
camera is controlled using a standard Web browser.
• Generic Control using CGI parameters: enter the positioning data as a CGI command directly
into your Web browser Location/Address (URL).
• Generic control using a TCP client: using a TCP client-application to control the position of
the chosen camera.
Pin
COM1
Function
COM2
Function
1 NC CD
2 - RXD - RXD
3 - TXD - TXD
4 RTS DTR
5 GND GND
6 DSR DSR
7 RTS RTS
8 NC CTS
9 NC RI
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