= ODU -48VDC Power Cable = 

The typical configuration for powering the ODU consists of:

    * ODU mounted outdoors, on roof, with maximum of 4A required at -48VDC
    * outdoor power cable, two conductors, 12AWG, rated for outdoor use (e.g. 250-ft roll of 12/3 SJTW cable)
    * ODU Circular Connector
    * Lightning surge protector mounted on a barrier terminal block in a weather tight box on the roof.
    * One power supply for ODU, Mean Well SP-200-48, 110VAC input, -48VDC output, rated 4.2A or 200W

Disassemble the connector by unscrewing the small screw shown in Figure 1 with appropriate Allen wrench.

[[Image(ODU-Allen-Screw.jpg, width=300)]] 

The top of the connector has to be un-screwed from the protective body in order to expose the soldering contacts and the cable wires have to be soldered as shown in figures 2.

[[Image(ODU-Power-Connector.jpg, width=300 )]]

ODU Power Connector assembly is shown in figure 3. Once assembled and attached to the ODU, the connector has to be weatherproofed (as suggested on Page 51 of the [http://groups.geni.net/geni/attachment/wiki/WiMAXInteg/CampusInstallation/BS_INSTALLATION.pdf NEC Installation Manual for Base Station (IMN:BS)]).

[[Image(ODU-Power-Cable.jpg, width=400)]]

The other end of the cable is attached to the Mean Well power supply as shown in Figure 4 (note that grounding should wire should not be used if the ODU power supply is in the equipment room as shown in Figure 3-9 on Page 49 of [http://groups.geni.net/geni/attachment/wiki/WiMAXInteg/CampusInstallation/BS_INSTALLATION.pdf NEC Installation Manual for Base Station (IMN:BS)])

[[Image(ODU-MW-PS.jpg, width=300)]]