Connecting A Two-Wire Mxbus Cable - Mobotix Q25M Manual

Network And Power Connection

2.9.7 Connecting a Two-Wire MxBus Cable

You can use such a cable to connect additional MOBOTIX
modules (e.g., the MX-GPS-Box or the MX-232-IO-Box) to
the Q25M.
Note that you can attach two MxBus cables (each having
two wires) to the MxBus connector (red circle in figure).
Take care not to switch the polarity of the wires. It is
recommended to use the same wire color for +/– for the
entire MxBus system (e.g., red = +, blue = –).
Procedure
1. In case the camera had already been installed, remove the camera so you can
access the connectors on the back.
2. Prepare the MxBus wires: Remove the blue single
wire plug. Strip 5 mm (1/5 in) of insulation from the
wire ends, then push each wire into one of the four
holes in the single wire plug (this prevents humidity
from entering the camera).
3. Connect MxBus wires: Push back the blue single
wire plug so that you can easily attach the MxBus
wires. Attach the MxBus wires by firmly pushing the
wires into the corresponding connectors.
If you need to remove one of the wires, unlock the
connector by pressing on the orange-colored area
using a small screwdriver, then pull out the wire.
4. Close the MxBus connector: Carefully press the
single wire plug into the connector socket and twist
the MxBus wire pairs.
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The length of the entire
MxBus wiring must not
exceed 50 m/55 yd.
Single-wire plug
MxBus connector