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AXIS 2110 User’s Manual The Unit Connectors
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Appendix D - The Unit Connectors
This section provides a detailed overview of the two supported product connectors: the
Serial Connector and the IO Connector. It also includes connection diagrams for simple
door switch and an LED output, as well as a more complete schematic diagram describing
how the AXIS 2110 is connected for a typical application.
The Serial Connector
In the absence of a local network connection, the RS232 serial connector provides a
physical interface for connecting a modem or computer to the AXIS 2110. This means that
the AXIS 2110 can operate as a standalone unit - independent of any computer network.
When a local network connection is unavailable at the point of installation, connect your
PC to this connector using the supplied Null Modem Cable to initially configure your
product.
The Physical Connector
A single 9 pin D-sub connector provides the physical connection for the RS232 serial
interface of the AXIS 2110. This connector is dedicated for use with an external modem
and is suitable for speeds up to 115kbps.
A diagram of the RS232 connector’s pinout information is shown below.
Pin Function
1 CD (Carrier Detect)
A view of the RS232 Serial Port from the rear of the AXIS 2110
2 RXD (Receive Data)
3 TXD (Transmit Data)
4 DTR (Data Terminal Ready)
5 GND (Ground)
6 DSR (Data Signal Ready)
7 RTS (Return To Send)
8 CTS (Clear To Send)
9 RI (Ring Indicator)
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