Control module with inbuilt electret microphoneand talk key.Components of these sets: 

 SET - Communication terminal with buttons S2138.1710S 

 SET - Communication terminal with buttonsand LCD node S3 138.1720S

Technical data 

 Current consumption (speech): approx.100 mA (mean value) 

 Contact rating of panels: OUT1: RL max.5.6 kΩ, OUT2, OUT3, OUT4, OUT5: Imax.25 mA 

 Current consumption per LED (LED1- LED5):Imax. 15 mA (at 24 V), activated at 0 V 

 Colour of LEDs can be set: yellow or colour ofthe button cap 

 Fuse: Littlefuse 0.5 A T 

Connection: suitable for plug-in terminals(spacing 5.8 mm) 

 Colour (housing): pure white (RAL 9010) 

 Material (housing): plastic (ABS) 

 Ambient temperature: 5 to 40 °C 

 Relative humidity: max. 85 %, non-precipitating 

 Dimensions (WxHxD): 88 x 88 x 25 mm 

 Weight: 65 g