Axis Communications 223M - Manual (Page 11)

AXIS 221/223M Installation Guide Page 11
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Unit connectors
Network connector - RJ-45 Ethernet connector. Supports Power over Ethernet. Using
shielded cables is recommended.
Power connector - Mini DC connector. 5.1V DC, max 3.6W. See product label for ±
connection.
Audio in - 3.5mm input for a mono microphone, or a line-in mono signal (left channel is
used from a stereo signal).
Audio out - Audio output (line level) that can be connected to a public address (PA) system
or an active speaker with a built-in amplifier. A pair of headphones can also be attached. A
stereo connector must be used for the audio out.
10 pin I/O terminal connector block
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 photocoupler and are electrically isolated
from the other internal circuitry.
The maximum load should not exceed 100mA and the max-
imum voltage should be not more than 50V DC. Note: Con-
necting AC to the output will damage the unit.
2 Output B
3 Digital Input 1
Photocoupler Anode (+) Photocoupled Input 1. Electrically isolated from the chassis
and connectors, 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