HRT82MF-CH Installation Guide.doc
2018-09-21
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Fig. 3 Connection to controller without 12VDC power supply output
3.2 Power supply
HRT82MF-CH requires 12VDC nominal power supply. The power must be connected to 12V and
GND terminals. Additionally, the GND terminal is used as reference potential for the RACS CLK/DTA
bus. HRT82MF-CH power supply can be provided by connection to buffer power supply unit (e.g.
PS-15DR, PS20) or connection to AUX output of HRC402DR controller (see fig. 2). Backup battery
connected to power supply unit or directly to HRC402DR controller can be used in order to ensure
operation in case of 230VAC power failure.
Note: All devices connected to the same RACS CLK/DTA bus must be connected to common
reference potential (GND).
3.3 RACS CLK/DTA communication bus
RACS CLK/DTA is the addressable bidirectional communication standard developed and applied in
Roger controllers in order to enable their communication with peripheral devices. Addresses of all
devices connected to CLK and DTA lines must be properly configured in range of 00..15. Standard
unshielded signal cables (e.g. U/UTP cat. 5) with maximal length of 150m can be used for RACS
CLK/DTA communication.
3.4 Front panel
HRT82MF-CH front panel includes card holder. At the holder entry, white backlight is by default
switched on and it is also possible to switch green and/or red light below the holder. This additional
backlight can be switched by HRC series controller.
3.5 Wall mounting and installation guidelines
HRT82MF-CH consists of front panel and base which are factory assembled and require manual
disassembly prior to installation according to fig. 4.
Installation guidelines
Install device on wall far from sources of heat and moisture
It is recommended to install device on Ø60mm flush mounting box
Front panel and base must be properly oriented in order to ensure functioning of tamper
resistance.
All electric connections must be made with power supply switched off
Run connection wires through hole in device base and then connect wires to screw terminals
If device and controller are supplied from different power supply units then it is necessary
connect GND terminals of both devices
Front panel can be regularly cleaned with wet cloth and mild detergent. Do not clean by means
of abrasive materials and strong cleaners like alcohols, solvents, etc.
