The Twisted Pair Adapter supports power input from either a standard 24 VAC or 24 VDC source.
To supply power to the adapter, you can use either a transformer or a DC power source:
Class 2 (EN 60742) transformer delivering a nominal 24 VAC at 50/60 Hz
DC power supply providing a nominal 24 to 30 VDC with sufficient output capacity
For more information, see Twisted Pair Adapter .
The power supply can be the same as the one used for the BACnet/IP controller (MP or RP controller) or automation server (AS-P-3, AS-P or AS-B server). See the following figure for example.
For RP-C 230 V controller models, the 24 VAC output can be used to power the adapter. See the following figure for example.
The adapter features an isolated design for error-resistant installation.
The adapter is based on a half-wave rectified, isolated design, which is complemented with electronic protection components for transient protection, overload protection, and EMC compliance. The design provides galvanic isolation. This helps minimize the risk of damage due to earth currents.
The adapter does not supply power to the twisted pair network.