Unitronics GW-BAC1 - Connecting Power to GW-BAC1; Figure 7: Required Current Draw for the GW-BAC1; Figure 8: Power Connections

Unitronics’s BACnet Gateway User Guide Page 11 of 28
Unitronics
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
Current Draw Type
GW-BAC1 Family
12VDC/VAC
24VDC/VAC
30VDC
FPC – N34 (Typical)
170mA
100mA
80mA
FPC – N34 (Maximum)
240mA
140mA
100mA
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
Power to GW-
BAC1
GW-BAC1
Pin #
Pin
Assignment
Power In (+)
Pin 4
V +
Power In (-)
Pin 5
V -
Frame Ground
Pin 6
FRAME GND