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Siemens Desigo Room automation - Engineering, mounting and installation CM111043en_14
Smart Infrastructure MS/TP networks 2020-10-30
· Grounding of the shield at ONE end of the network segment.
Key +, – Twisted pair
Reference wire
Shield
120 Ohm Bus terminating resistor (½ W 5%) at BOTH ends
PTC Special-thermistor (TRF250-120) at ONE end
· The next device has no power (AC 230 V) when a room automation station is
removed. The connection exists only on the board, but not on the terminal block.
· The BACnet MS/TP terminal block is not affected when a room automation
station has no power (AC 230 V or AC 24 V).
For more detailed information, see documents [10], [13] and [14] as well as
Knowledge base article 2556.
Note!
Availability
Additional information