User's Manual

Table Of Contents
Technical Description & Configuration Guide Configuration and Management
LigoWave Page 18
Power over Ethernet Injection
You must have Power over Ethernet sourcing equipment (provided power>25W) to connect the laptop
to the LigoPTP 24 FODU. It is possible to use passive injectors, utilizing spare leads. Refer to chapter
Pinouts for detailed information on pinouts. Power over Ethernet injector can be purchased from
LigoWave as an optional accessory. Below is an example of a passive and active Power over Ethernet
injector, as well as its application scheme.
Figure 8 Passive Power over Ethernet Injector (P/N I0ATPI01)
Figure 9 Power over Ethernet Passive Injector Application
This passive injector features shielded RJ-45 jacks. This along with the metal housing helps reduce
the effects of EMI. A ground lug and terminal is provided directly on the injector housing providing
superior grounding. The cast aluminum housing includes integral mounting feet for easy installation.
Figure 10 Power over Ethernet Active Injector (P/N I0ATPI02) Front and Back Views
This active injector is Power over Ethernet supply with integral DC injector, so separate power supply
and injector is not required. Injector is enclosed in impact resistant polycarbonate housing.