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