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AXIS 2400/2401 Admin Manual
Appendix F - The RS-232 Interface
The AXIS 2400/2401 has two 9-pin D-sub connectors, providing the physical interface for
two RS-232 ports, used for connecting:
• accessory equipment; such as stand-alone Pan/Tilt devices for remote positioning of con-
nected video cameras
• any standard modem for use in remote applications, as described on page 11
• the AXIS 2191Audio Module, as described on page 31.
As a complement to the information provided in Pan Tilt Settings, on page 26, this
appendix describes how to install a standalone Pan/Tilt device to the AXIS 2400/2401
Video Server.
Physical Connector
A diagram representative of both RS-232 connectors, complete with an accompanying pin
assignment table, is shown below.
Pin
Function
1
2
3
4
5
6
7
8
9
Notes:
The pinout is different for each supported serial port.
Pin 4 on COM1 is connected to Pin 7 (RTS).
NC = Not connected
COM1
COM2
Function
NC
CD
- RXD
- RXD
- TXD
- TXD
DTR
DTR
GND
GND
DSR
DSR
RTS
RTS
NC
CTS
NC
RI
The RS-232 Interface
1
2
3
4
5
6
7
8
9
51
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