User Manual

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System data
Bus connection
Cable type YCYM 2 × 2 × 0.8 mm
2
one wire pair (red, black) for signal
transmission and power supply,
one wire pair (yellow, white) for additional
applications (SELV or voice)
Cable lengths
Total length of one line
(wire diameter: 0.8 mm)
max. 1,000 m
(including all branches)
Length between two
bus devices
max. 700 m
Length between a bus
device and the power
supply
max. 350 m
Length between
power supplies
mounted side by side
(applies for Siemens products)
Bus devices
Number of areas max. 15
Number of lines per area max. 15
Number of bus devices
per line
max. 255
Topology linear, star or tree structure
Power supply
System voltage DC 24 V (safety extra-low voltage ‒ SELV)
Power supply per line one power supply
(160, 320, 640 mA or 2 x 640 mA)