Axis 2460 User Manual

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Contents

AXIS 2460 User’s Manual Unit Connectors 65The I/O Terminal Block ConnectorTypically used in association with programming scripts fordeveloping applications for event triggering, alarm notification viae-mail, etc., the 16-pin I/O Terminal Block is located on the rearpanel and provides the interface to: a single relay switch output,four digital photo-coupled inputs, and an RS-485 interface. See page67 for more information about RS-485.This section describes the pinout, interface support and the controland monitoring functions provided by this connector.Connector PinoutThe pinout for the Terminal Block (illustrated above) and signaling details for each pin isfully described in the table below:Note: For compatible replacement connectors, please contact Axis. Alternatively, contacthttp://www.phoenixcontact.com, quoting: MC1.5/8-ST-3.81 (art no 1803633).Pin Function Description1 Not connected.2 Not connected.3 Digital Input 3 - Photocoupler Anode (+) Photocoupled Input 3: Electrically isolated from the chassis and connec-tors, this input can be supplied from an external DC voltage or the DCPower Input/Output on pins 9 and 10. Driven by 5-24V.4 Digital Input 3 - Photocoupler Cathode (-)5 Digital Input 4 - Photocoupler Anode (+) Photocoupled Input 4. As above.6 Digital Input 4 - Photocoupler Cathode (-)7 RS-485 - B (inverting) Serial Port 1- RS-485. A half-duplex RS-485 interface for controllingauxiliary equipment. Note: Serial Port 1 is programmed as eitherRS-232 (COM1 Connector) or RS-485 (Terminal Block Connector), viathe browser interface.8 RS-485 - A (non-inverting)9 DC + Power Output 12V This can drive the photocoupler inputs or other equipment; such as anIR-sensor. A maximum current of 50mA can be sourced from the DCoutput. Pin 10 is connected to the unit chassis and to Ground on eachserial port and video input. See the schematic diagram on page 68.10 DC - Power Output11 Digital Input 1 - Photocoupler Anode (+) Input 1 Photocoupler input. As for Input 3.12 Digital Input 1 - Photocoupler Cathode (-)13 Digital Input 2 - Photocoupler Anode (+) Input 2 Photocoupler input. As for Input 3.14 Digital Input 2 - Photocoupler Cathode (-)15 Relay Switch Relay switch - electrically isolated from chassis and connectors.16 Relay Switch