34 | The I/O Terminal Block Connector | AXIS 2130/2130R User’s Manual |
Appendix E - The I/O Terminal Block Connector
A
Pins | Function |
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OUT A | The two external device output terminals (A and B) are automatically switched to the |
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OUT B | connected or disconnected postion - there is no distinction between + and |
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| use optocouplers and are electrically insulated from the other internal circuitry. | A |
| The maximum load should not exceed 100mA and the maximum voltage should be no | |
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| higher than 50V DC. Note: Connecting AC to the output will damage the unit. |
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IN+ | The external device input terminals consist of a + terminal and a - teminal. The - terminal is | B |
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IN - | grounded on the inside of the main unit. Interupts are generated by connecting cables to | + |
| the terminals and shorting (ON) or breaking (OFF) the circuit. Sensors and switches should | |
| be connected to these terminals with electrically isolated GND and power supplies. |
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Input
Used for connecting external alarm devices and triggering images for specific
Output
The output can drive a maximum load of 50V DC at 100mA directly, and by connecting additional relay circuitry, it can drive even heavier loads. If the output is used with an external relay, a diode must be connected in parallel with the load for protection against any voltage transients.