User Manual

Weight excluding packaging HMH3.1/A

HML3.1/A

70 g

100 g

Weight including packaging HMH3.1/A

HML3.1/A

120 g

150 g

Connection diagrams

Device connection

Microcontroller

RS485

Room bus

GND 12V

UP UN

12V

RESET

LED1

Address

switch

UG UR

LED2 LED3

Reflective sensor

12V

3-tone

chimes

Loudspeaker

connection

654321

L -

L +

Pin Signal

1 UP Data signal +

2 UN Data signal –

3 UG System neutral (GND)

4 UR Supply voltage DC +12 V

5 L+ External speaker

6 L– External speaker

Ext. speaker Room bus

Connection

terminals

Pin 6 is marked with a 2 mm-high number on the copper plating.

Pin 1 is on the outer edge of the device.

Pin 1 is also marked on the connector.

5/6

Siemens HMH3.1/A, HML3.1/A – Magnetic card holder / Magnetic card holder with doorbell speaker CM2N6335en

Building Technologies 01.09.2008