Westermo PII PoE Injector - Manual (Page 3)

The E.G. pin must be connected with Earth Grounding Screw and which makes connection
to the Power System’s Earth Grounding. If the E.G. pin is not connected to Earth Grounding,
then the Surge / Spark protective function will not be enabled. Besides, the connection of E.G.
and Earth Grounding must remove before performing Hi-Pot or Insulation Testing. If not, the
Surge protection circuit will be damaged during the Hi-Pot / Insulation testing, and the testing
result will fail.
The Front Panel
The PII-2G supports 2-channels Gigabit high power connection,
and there are several LED to indicate the system power, PoE1
and PoE2. The data flow on each channel is shown individually.
LED Status
Pwr Green on: power is applying
PoE
Green on: PoE power is applying
Slow Blinking: PoE over current or cable short
Green fast blinking: over voltage or over temperature
Port Description
PoE
Connects to PD (WiFi AP, IP Camera)
Port transmits Data and Power together
Speed: 10/100/1000Mbps connection
Data In
Connects to Ethernet Switch Device,
Port transmits data only
Speed: 10/100/1000Mbps connection
Power over Ethernet Connection
Each PoE channel supports 30W power budget with a compliance of IEEE 802.3af /
802.3at. If the PD device does not have power, please check PD’s powering method
whether it is in complies with IEEE 802.3af/at standard which has the same powering
mode as PII-2G.
If different pairs of the PD’s are used as feed in power, then the PoE connection will not be
constructed. As shown in the charts below the powering pair cables for you reference.
Note: If the PD can’t be powering by PII-2G, then it may not be fully compliant with the
IEEE802.3 PoE standard. It is recommended to use legacy power injector which feeds
power directly to the PD device.
Model Powering cable pair Note
PII-2G Alternative A 1,2,3,6 Data Pair powering
Power LED
PoE LED
Channel # 1
Data &
Power
Data
Channel # 2
Data &
Power
Data