Unitronics’s BACnet Gateway User Guide Page 11 of 28
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2.4 Connecting Power to GW-BAC1
Apply power to GW-BAC1 as show below in Error! Reference source not found.. Ensure that the power supply
used complies with the specifications provided in Appendix B.1.
GW-BAC1 accepts either 9-30VDC or 12-24 VAC on pins 4 and 5.
o The “Frame Ground” (pin 6) is not typically connected.
Power Requirement for GW-BAC1 at 9V through 30 VDC or 12-24 VAC
Note: These values are ‘nominal’ and a safety margin should be added to the power supply of the host system. A
safety margin of 25% is recommended.
Figure 7: Required current draw for the GW-BAC1
Figure 8: Power Connections
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