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T26 System Manual Part 1: Installation
2.1.3 With Info Module Mx2wire+ and MX-DoorMaster
To be able to use a bell wire already laid in the building to connect the T26 door station to the
network and supply it with power, the T26 version with Mx2wire+ technology is required. The
two-wire cable must be conducted from the door station info module to a second Mx2wire+
unit inside the building, to which data and power is supplied, for example, via a PoE+ switch.
Installing a MX-DoorMaster with decentralized access code memory makes it impossible
to open the door by bypassing the connection cable, and therefore protects against unau
-
thorized access. A battery, kept fully charged via MxBus at all times, supplies power to the
electric door opening mechanism (even in the case of a power failure).
Outside Inside
Door station
Switch box
Door
MX-DoorMaster
12 V DC
(for elec. lock)
Power supply
Door sensor
Door lock sensor
Door opener
The protection
Data and power via two-wire
connection
MxBus
48 to 57 V DC
(alternative)
Power supply
MxDisplay+
2
2
2
2
2
2
2
2
PoE+ switch
8
Mx2wire+ indoor
unit
The gure above the con-
nection sections represents
the number of cable wires
Black: YSTY 0.8 (recom-
mended) or 0.6 mm
Orange: Ethernet
Cat. 5 or higher
The external 12 V power sup-
ply including a cable from
the switch box is required
here for an electronic lock
(“Mediator”, optional)
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