IREL
RXTX transmission
RXTX limit-switch transmission modules type R25-TK4, TK8, TK16 and TK24.

RXTX transmission
RXTX modules type R25-TK4, TK8, TK16 and TK24 transmit limit-switch states between cooperating overhead cranes over radio.
TK xx STOP versions can also carry STOP signals with contact-weld monitoring and dual-path input transmission.
The set consists of two modules, each in its own housing with its own power supply. Depending on the version there are 4 to 24 inputs, whose states are sent to the other module and repeated on 4 to 24 relays — and the same the other way. All transmitted channels are independent.