Terminal Description; Front Overview - ABB M21311P1-A Manual Del Usuario

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4

Terminal description

4.1

Front overview

Fig. 1 Front overview
No. Function
1 Light sensor
2 Infrared LED-a total of 6
3 Indicated LED-a total 3: ring, call and door open
4 Speaker and microphone integration
5 Round pushbutton
*If round pushbutton with ID card reader，see details in
chapter 5.3
6 Nameplate
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1
6
2
3
4
3
5
the
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