
The main purpose of the “Soyuz RM-4 Relay” module is discrete reading and output of information for controlling indicators, buttons and contactors for processing analog signals.
The Soyuz RM-4 relay module is made in an industrial building that allows to connect the expansion modules of the Soyuz model range.
Specification
| Parameters of electric power, V | From 20,4 to 26,4 | 
| Active power consumption, W, no more than | 10 | 
| Overall dimensions, mm: | |
| -height x width x depth | 122x115x25 | 
| Weight, kg, no more than | 300 | 
| Operating conditions: | |
| -ambient temperature range | 
 From -40 °С to +70 °С  | 
| -relative humidity of air, %, no more than | 80 | 
| – atmospheric pressure range, kPa | From 66,0 to 106,7 | 
| Average lifetime, years, not less than | 20 | 
| Error-free running period, hours, not less than | 50000 | 
