User Manual

Functions
The HMH3.1/A or HML3.1/A magnetic card holder communicates with the HRC3.. room
controller via a serial port, performing the following functions:
• Indicates the location of the card holder with 3 built-in LEDs, to guide those entering
the room in darkness
• Uses an optical sensor to detect the presence of a magnetic card in the card slot on
the front of the holder
• Transmits the room occupancy status to the HRC3.. room controller
• Enables the predefined room functions based on room occupancy status
(guest(s) in the room, hotel staff in the room, room empty)
• Controls 3 green LEDs (On/Off/Flashing at 1 Hz)
• External passive speaker (8 ohms, max. 2 W) can be connected to terminals
• Volume can be adjusted by potentiometer (card holder must be dismounted for access)
• Duration of chime can be set (1, 2 or 3 tones) via application parameters in the room
controller
• Hotel-room bell feature via built-in speaker (8 ohms, 2 W) for three-chime function
(HML3.1/A only)
Types
HMH3.1/A Magnetic card holder
HML3.1/A Magnetic card holder with doorbell speaker
Ordering
When ordering, please specify the quantity, product name and type code:
30 Magnetic card holders with doorbell speaker
HML3.1/A
Example
Compatibility
Please refer to the assortment overview, N6301.
Mechanical design
The HMH3.1/A magnetic card holder comprises:
• Component assembly (carrier, PCB with electronic circuit, LEDs, optical sensor,
terminal block and address switches)
• Front plate
• Operator panel
• The HML3.1/A has a speaker fitted to a mounting plate, which is snap-mounted on
the base of the card holder, and connected by two wires to the terminal block.
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Siemens HMH3.1/A, HML3.1/A – Magnetic card holder / Magnetic card holder with doorbell speaker CM2N6335en
Building Technologies 01.09.2008