User Manual
AirSynergy 2000 Installation Guide
Page 52 Commercial in Confidence UGD-D01001 Rev B
11 Appendix D – PSU for USA
To comply with US regulations that apply to outdoor deployments of mains power supplies, a
special US version of the AirSynergy power supply has been produced with the PSU module and
the electrical connecting blocks enclosed in a small NEMA approved enclosure. The electrical
power cable and 48V power cables are brought through the weatherproof glands provided. This
type of power supply (SYN-PSU-ODUL-AC-3) must be used for all deployments in the USA.
Figure 52 - PSU for USA
1. Remove the top cover of the PSU enclosure.
Figure 53 - Inside PSU with cable terminations
2. Feed the DC power cable through the gland nearest to the low voltage connection and
connect to the terminal strip, observing the correct polarity. (Blue wire in drop cable to
negative terminal and Black wire in the drop cable to positive)
3. Isolate the power supply and pass the power cable through the input gland and
terminate on the connection blocks provided. The termination blocks are clearly labeled
as Live, Neutral and Earth.
4. Choose a suitable position for the PSU enclosure. The PSU enclosure should be
screwed to a firm surface with screws in 4 positions which are only accessible with the
top cover removed.
5. Once the enclosure top cover has been re-fitted (4 screw positions) and the wiring
completed the power can be connected.