Axis Communications 2100 Appendix D The Unit Connectors, Serial Connector, Physical Connector

58 The Unit Connectors AXIS 2100 User’s Guide

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 a simple door switch and an LED output, as well as a more complete schematic diagram describing how the AXIS 2100 is connected for a typical application.

The Serial Connector

The serial connector can be used for several purposes. In the absence of a local network connection, the serial connector provides a physical interface for connecting a modem or computer to the AXIS 2100. 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. If you intend to use the AXIS 2191 Audio Module with your network camera, then this is the connector used for connecting it.

The Physical Connector

A single 9 pin D-sub connector provides the physical connection for the RS232 serial interface of the AXIS 2100. 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

1CD (Carrier Detect)

2	RXD (Receive Data)	A view of the RS232 Serial Port from the rear of the AXIS 2100
3	TXD (Transmit Data)
4	DTR (Data Terminal Ready)
5	GND (Ground)		9	8	7	6
6	DSR (Data Signal Ready)	5	4	3	2	1
7	RTS (Return To Send)
8	CTS (Clear To Send)

9RI (Ring Indicator)

For pinout information concerning the AXIS 2191 Audio Module, see page 48.