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AXIS 223M - Unit Connectors
I/O Terminal connector pinout table
I/O Terminal connector schematic diagram
Example schematic diagram of the AXIS 223M terminal connector - showing possible
applications.
Pin Function Description
1 Output A On the external device output terminals (A and B), there is no distinction
between positive and negative (+ and -). The terminals use a photocou-
pler and are electrically isolated from the other internal circuitry.
The maximum load should not exceed 100mA and the maximum voltage
should be not more than 50V DC. Note: Connecting AC to the output will
damage the unit.
2Output B
3 Digital Input 1- Photocoupler Anode (+) Photocoupled Input 1. Electrically isolated from the chassis and connec-
tors, this input can be supplied from an external DC voltage or the DC
Power Input/Output on pins 9 (DC+) and 10 (GND).
4 Digital Input 1 - Photocoupler Cathode (-)
5 Digital Input 2 - Photocoupler Anode (+) Photocoupled Input 2. As above.
6 Digital Input 2 - Photocoupler Cathode (-)
7 RS-485-A (non-inverting) A half-duplex RS-485 interface for controlling auxiliary equipment.
8 RS-485-B (inverting)
9 DC + Power Output This can drive the photocoupler inputs or other equipment. The output
voltage level is 3.0 V. A maximum current of 100mA can be sourced from
the DC output.
10 GND Ground.
o
o
Control
Device
o
o
o
o
A
B
3
4
5
6
7
8
External Device
Active
_
+
o
o
1
2
RS-485
Mains Power
24V DC
Appliance
Optional
Relay
Switch
o
o
o
o
o
o
o
o
o
9
10
+
-
Switch, etc.