Instructions
Table Of Contents
Specifications 
 akYtec GmbH · Vahrenwalder Str. 269 A · 30179 Hannover · Germany · Tel.: +49 (0) 511 16 59 672-0 · www.akytec.de 
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2.1  Environmental conditions 
The device is designed for natural convection cooling. It should be taken into account when choos-
ing the installation site. 
The following environment conditions must be observed: 
−  clean, dry and controlled environment, low dust level 
−  closed non-hazardous areas, free of corrosive or flammable gases 
Table 2.4 
Conditions 
Permissible range 
Ambient operating temperature 
-20…+55°C 
Storage temperature 
-25…+55°C 
Relative humidity 
up to 80% (at +25°C, non-condensing) 
Altitude 
up to 2000 m above sea level 
EMC immunity 
conforms to IEC 61000-6-2 
EMC emission 
conforms to IEC 61000-6-4 
2.2  Galvanic isolation 
a)
230V AC
DI1...DI4 DI5...DI8
2830 V 2830 V 2830 V
1780V
1780V
2830 V 2830 V
DO1 DO2 DO7 DO8
Internal bus Internal bus
b)
24V DC
DI1...DI4 DI5...DI8
2830 V 2830 V 2830 V
1780V
1780V
2830 V 2830 V
DO1 DO2 DO7 DO8
Internal bus Internal bus
Fig. 2.1 Galvanic isolation PRM-230 (a) and PRM-24 (b) 










