The I/O Terminal Connector; Connector Pinout - Axis 291 1U Installation Manual

8
AXIS 291 1U Video Server Rack

The I/O Terminal connector

The AXIS 291 server provides an I/O terminal connector for each Axis blade video server (see illustration on
page 4). This is used for connecting external equipment, in applications for e.g. motion detection, event
triggering, time lapse recording, alarm notification via email, image storage to FTP locations, etc.
Connector interfaces
The interfaces available via the 12-pin I/O terminal connector are as follows:
• 4 Digital inputs - used for e.g. a pushbutton. If the button is pressed, the state changes and the
input will be active (shown under Event Configuration > Port Status).
4 Transistor outputs - for e.g. alarm devices that can be activated from Output buttons on the Live
•
View page, or as an action to an Event Type. The output will show as active (in Event Configura-
tion > Port Status) if the device is activated.
RS-485 interface, for e.g. Pan/Tilt/Zoom devices (see www.axis.com for drivers)
•
• Auxiliary power

Connector pinout

Pin Function
1 Auxiliary DC Power Input
2 GND
3 Digital Input 1
4 Digital Input 2
5 Digital Input 3
6 Digital Input 4
7 Transistor Output
8 Transistor Output
9 Transistor Output
10 Transistor Output
11 RS-485 - A (non-inverting)
12 RS-485 - B (inverting)
To connect input/output devices to the I/O terminal connector:
1. Referring to the table above, loosen the corresponding screw on top of the pin on the green connector
block.
2. Push the cable into the connector block and secure it by fastening the screw.
3. Once all devices are connected, push the connector block into the terminal connector on the rear panel of
the AXIS 291.
For compatible replacement connectors, contact http://www.phoenixcontact.com, quoting: MC1.5/12-ST-3.81
(art no 1803675).
Description
This pin can be used to power auxiliary equipment, max 100mA
Connect to GND to activate or leave floating (or unconnected) to
deactivate.
With a maximum load of 100mA and maximum voltage of 24V DC, this
output has an open-collector NPN transistor with the emitter
connected to pin 2 (GND). If it is to be used with an external relay, a
diode must be connected in parallel with the load for protection
against any voltage transients.
A half-duplex RS-485 interface for controlling auxiliary equipment,
e g. PTZ devices.