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Figure 2
Connector Array in Front in a 19-in. (482.6-mm) Rack
Installing 48-V Power and Ground to the ONS 15305
The power needs to be properly installed and grounded for operation of the ONS 15305. Figure 3
shows the location of the 48-V connector.
Figure 3
Location of the Power Connector on the ONS 15305 Faceplate (Connector Array)
The ONS 15305 cabinet shall always be tied to a suitable earth reference potential as described in the
“Installing External Ground to the ONS 15305” section on page 16. The 48-V power interface of
ONS 15305 is galvanically insulated from the cabinet. The positive pole of the 48-V supply (0 VDC)
shall always be connected to the same earth potential at the station battery on the PDP side. Use the
following procedure to install power and ground to the ONS 15305:
AC; 0 1A 50H
DC Power
OV -48DC-48DC
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Summary of Contents for ONS 15305
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