User Manual
Product information and planning
9500 MPR Rel. 3.1
3DB18809AAAA Issue 1 137/980
Power Injector versions
Two versions are available:
1) Power Injector plug-in: installed in the MSS shelf and powered through the backplane.
Figure 56. Power Injector plug-in
The Power Injector plug-in is not managed by MSS. The Plug-in just needs an empty slot to 
be inserted in. As consequence, no specific commissioning activity is needed to insert a Power 
Injector plug-in on a existing MSS shelf.
2) Power Injector box: stand-alone box, powered through two connectors on the front providing 
power supply redandancy. The box can be mounted in a rack by means of a separate bracket. 
The bracket can support two boxes side by side. Height: 1,3 U.
Figure 57. Power Injector box
Connectors 
– Two DC connectors in the front (for box version), or power from the backpanel (for plug-in version).
– Two RJ45 for the data in (DATA)
– Two RJ45 for the data + DC out (DC+DATA)
LEDs
– Two LEDs indicate the presence of DC voltage on each Ethernet output. 
Figure 58. Power Injector front panel