Axis Video Server AXIS 241SA User Manual

Also see for AXIS 241QA: Specifications Installation guide Specifications User manual User manual

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Axis Video Server AXIS 241SA User Manual Manual pdf 58 page image

58 AXIS 241QA/AXIS 241SA - Unit connectorsThe I/O terminal connectorThis section describes the pinout and interface support provided by the 12-pin I/O terminalconnector, which includes:• 4 digital transistor outputs• 4 digital inputs• an RS-485 interface• auxiliary power and GNDThe terminal connector is used in applications for e.g. motion detection, event triggering,time lapse recording, alarm notification via email, image storage to FTP locations, etc.• Inputs - e.g. a push button. If the button is pressed, the state changes, and theinput will be active (shown under Event Configuration > Port Status).• Outputs - e.g. an alarm device that can be activated from Output buttons on theLive View page or as an action to an Event Type. The output will show as active(in Event Configuration > Port Status), if the device is activated.The AXIS 241QA/AXIS 241SA includes one (green) 12-pin connector block. Connectinput/output devices to this block:1. Loosen the corresponding screw on top of the pin on the connector block (see thetable above to determine which pin to use).2. Push the cable into the connector block and secure it by fastening the screw.3. Once all devices are connected, connect the connector block to the video server’sterminal connector.Pin Function Description1 Auxiliary DC Power Input 7-20 VDC/min 8W. Electrically connected in parallel with the powerconnector, this provides an auxiliary connection for mains power tothe unit. If the product is powered via this pin, use a fuse (rating: 1ASlow).This pin can also be used to power auxiliary equipment, 9vDC max100mA.2 GND ground3 Digital Input 1 Connect to GND to activate or leave floating (or unconnected) todeactivate.4 Digital Input 25 Digital Input 36 Digital Input 47 Transistor Output With a maximum load of 100mA and maximum voltage of 24V DC, thisoutput has an open-collector NPN transistor with the emitterconnected to pin 2 (GND). If it is to be used with an external relay, adiode must be connected in parallel with the load for protectionagainst any voltage transients.8 Transistor Output9 Transistor Output10 Transistor Output11 RS-485 - A (non-inverting) A half-duplex RS-485 interface for controlling auxiliary equipment,e g. PTZ devices.12 RS-485 - B (inverting)