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2.10 Making PoE PSE Connections
This section describes how to make a connection between a PSE port and a PoE Powered D device (PD). All
copper ports are equipped with PoE PSE function. The ports are enabled to deliver power together with
network signal to a connected powered device via Cat.5 cable. To make a PoE connection, the connected PoE
PD must be a IEEE 802.3af IEEE 802.3at or IEEE 802.3bt-compliant device for safety reason. Incompliant
devices are not supported by the PoE switch model. The following table lists the power levels of IEEE 802.3
standard:
IEEE 802.3 standard: PoE Classification for the Compliant PD Types and Power Level
Compliant
PD classes
802.3af
Class 1
Class 2
Class 3
Class 4
Class 5
Class 6
Class 7
Class 8
RJ-45 Pin Assignments of the device's PSE Port
Pin
PoE power
1
V
+
poe
2
V
+
poe
3
V
-
poe
4
V
+
poe
5
V
+
poe
6
V
-
poe
7
V
-
poe
8
V
-
poe
V
: PoE power voltage on TP port
poe
The PSE ports are equipped with the following capabilities:
1. Detection for an IEEE 802.3af /802.3at/802.3bt compliant PD.
2. No power is supplied to a device which is classified non-IEEE 802.3 compliant PD.
3. No power is supplied when no connection exists on the port.
IEEE std.
802.3at
802.3bt
1000Base-T
BI_DB+
BI_DB-
BI_DA+
BI_DD+
BI_DD-
BI_DA-
BI_DC+
BI_DC-
PSE output
PD available
power max.
power min.
4W
3.84W
7W
6.49W
15.4W
13W
32W
25.5W
45W
40W
60W
51W
75W
62W
90W
71.3W
10/100Base-TX
RX+
RX-
TX+
-
-
TX-
-
-
-22-
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