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T24 System Manual Part 1: Installation
© MOBOTIX AG • Security-Vision-Systems • Made in Germany
2.1.4 Recommendation For Cabling
Depending on the model, the door station and its remote stations require one of the
following cabling configurations. Please take note of our cabling recommendations and
the maximum cable lengths. Both the network cable and other cables must be stripped
at the door station ends.
Network cable from the Ethernet terminal board behind the camera module
to the switch/injector
• Recommendation: Category 5 (Cat 5) Ethernet installation cable or higher; Cat
7 cable is designed for 10 Gbit Ethernet (max. future compatibility)
• Max. cable length: 100 m
Two wires from the door station to the T24-DoorMaster for the MxBus connector
• Recommendation: YSTY (telephone) solid wire, core diameter 0.6 to 0.8 mm
• Max. cable length: 50 m
Cables from the T24-DoorMaster to the electric door opener, the door contact
and the door lock switch
• Recommendation: YSTY (telephone) solid wire, core diameter 0.6 to 0.8 mm
• Max. cable length: depending on the manufacturer, max. 50 m
Two wires from the T24-DoorMaster to an additional power supply (for
example, 12 V for Mediator operation)
• Recommendation: YSTY (telephone) solid wire, core diameter 0.6 to 0.8 mm
• Max. cable length: depending on the manufacturer
Two wires from the keypad to the 230 V light relay (if present)
• Recommendation: YSTY (telephone) solid wire, core diameter 0.6 to 0.8 mm
• Max. cable length: depending on the manufacturer
Two-wire cable from the T24-Info2wire+ info module to the indoor unit (as
an alternative to the outdoor station being directly connected to the network)
• Recommendation: existing, previously laid bell wire (core diameter 0.6 to
0.8 mm)
• Max. cable length: 200 m (JY, A2Y, YR), 300 m (NY), 500 m (Cat 7)
Two wires from the door station to the T24-DoorMaster for connecting the
MOBOTIX anti-theft protection (for unlocking when exchanging modules)
• Recommendation: black two-wire cable already fitted to the frame, possibly
extended with YSTY (telephone) solid wire, core diameter 0.6 to 0.8 mm
• Max. cable length: 50 m
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