The C-Bus is used for communication between
terminals and central units and has a loop architecture.
That means every node (central unit or terminal)on
the C-Bus has the ability to disconnect the incoming
wires from the outgoing and to terminate these wire
ends if needed.

Technical details
VSE-C4 Datasheet

• Fiber module agilent HFCT-5205
• Connection type SC duplex
• Cable 9 µm single mode (1300 nm)
• Distance up to 15km ( long distance version up to 50km)
• C-Bus copper cable segment-length (G51, 0.8 mm2) up to 500m
• 18-36V AC/DC power supply input, power consumption 3.5W
• Easy DIN mount
• LED indicators