EIA-485, electrically isolated 
1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 
(depending on the configuration) 
120 Ohm, switchable with DIP switch 
Internal bus polarization 
270 Ohm pull-up/pull-down resistances, switchable with 
DIP switch 
Cabling (in-house cabling only) 
Cable length 
3-wire cable 
Max. 1000 m (3300 ft) 
Short-circuit proof 
Protection against faulty wiring with AC 24 V and 
DC 24 V 
USB interface (4G internet connection) 
Ambient conditions and protection classification 
Classification as per EN 60730 
Automatic action 
Control function 
Degree of pollution 
Overvoltage category 
Suitable for use in protection class I or II systems 
Degree of protection of housing to EN 60529 
Front parts in DIN cut-out 
Terminal part 
Climatic ambient conditions 
●  Storage / Transport (packaged for transport) as per 
IEC EN 60721-3-1 / IEC EN 60721-3-2 
 
●  Operation as per IEC/EN 60721-3-3 
 
 
●  Class 1K22 / 2K12 
Temperature -25...70 °C (-13...158 °F) 
Air humidity 5...95 % (non-condensing) 
●  Class 3K23 
Temperature -5...50 °C (23...122 °F)  
(for details see chapter Mounting) 
Air humidity 5...95 % (non-condensing) 
Mechanical ambient conditions 
●  Transport per IEC/EN 60721-3-2 
●  Operation as per IEC/EN 60721-3-3