Korenix JetNet 3705, Руководство пользователя

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Connecting to PD
Port 1 to port 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 JetNet3705 and JetNet3705f follows 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).
Conductor
Alternative A
(MDI-X)
Alternative A
(MDI)
Alternative B
(All)
1 Rx & Negative Vport Tx & Positive Vport
2 Rx & Negative Vport Tx & Positive Vport
3 Tx & Positive Vport Rx & Negative port
4 Positive Vport
5 Positive Vport
6 Tx & Positive Vport
Rx & Negativen
Vport
7 Negative Vport
8 Negative Vport
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, Jetnet3705 will not recognize the PD and won’t
forward DC 48V power to PD, since the JetNet 3705 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.
PD Pinout
Conductor Mode A Mode B
1 Positive Vport, Negative Vport
2 Positive Vport, Negative Vport
3 Negative Vport,Positive Vport
4 Positive Vport, Negative Vport
5 Positive Vport, Negative Vport
6 Negative Vport,Positive Vport
7 Negative Vport,Positive Vport
8 Negative Vport,Positive Vport
Pin assignment of PSE