Connecting Powered Device (Pd) - Korenix JetNet 3810G Series User Manual

Note: This is a Class 1 Laser/LED product. Don't stare at the Laser/LED Beam.
Note: 100Base-FX SFP transceiver is optional and can be supported by different
settings
Note: The unit has to use UL recognized Laser Class 1 SFP transceiver.

2.8 Connecting Powered Device (PD)

Port 1 to port 8/4 provide PoE inject function with maximum 15.4w ability to power
up the powered device use the straight or cross-over Ethernet cable.
The JetNet 3810(Gf)/ 3806G/ 3710G follow the IEEE802.3af Alternative B mode
connector assignment. The following table shows pin assignment of alternative A and
B for the PSE (Power Source Equipment).
Alternative A
Conductor
1 Rx & Negative Vport
2 Rx & Negative Vport
3 Tx & Positive Vport
4
5
6 Tx & Positive Vport
7
8
Be sure the twisted pair cable is bound with the standard RJ-45 pin, especially the pin
4, 5, 7 and 8.
If the RJ-45 is bound with the wrong pin number, JetNet will not
recognize the PD and won't forward DC 48V power to PD, since the
JetNet 3810G series switch following the Alternative B mode.
In the IEEE 802.3af standard documents, it indicates the PD should
support mode A and B, and only receiver power from either mode A or mode B.
The following table shows the RJ-45 pin out for the PD.
(MDI-X)
Tx & Positive Vport
Tx & Positive Vport
Rx & Negative Vport
Rx & Negative Vport
PIN Assignment of PSE
Korenix
JetNet 3810(Gf)/ 3806G/ 3710G
Alternative A
(MDI)
Positive Vport
Positive Vport
Negative Vport
Negative Vport
Alternative B
(AII)
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