Main prod. Group survey
deu
fra
esp
14
Electrical and electronics industry
Apparatus and installations for wire communications
Apparatus and installations for wire transmission
5171.17
Interface and adapter equipment
5171.21
Multiplexers (digital timer multiplexer)
5171.24
Network management and supervision systems
5171.27
Audio-frequency transmitter equipment for alarm, signalling and controlling installations
5171.34
Data transmission apparatus and equipment
5171.37
Amplifying equipment for communication engineering
5171.41
Current supply equipments for telecommunication
5171.78
Directional couplers