User’s Manual
PSE-SW5G2280HM
MSTRONIC CO., LTD.
6
The Link/Act LED (green or yellow) will light up when the cable is correctly connected. Refer to
the
LED Indicator
section for descriptions of each LED indicator.
If a port LED is off, go back and check for connectivity problems between that port and the network
device connected.
The maximum cable length for 10/100/1000BaseT with Cat 5 twisted pair cables is typically 100m
(328 ft).
*PD Device Wiring
Port 1 to 5 provide PoE inject function to power up the powered device use the straight-through or
cross-over Ethernet cable.
The PoE switch follows the IEEE802.3af/at Alternative B mode connector assignment. The
following table shows pin assignment of alternative A and B for the Power Source Equipment.
Conductor
Alternative A
(MDI-X)
Alternative A
(MDI)
Alternative B
(All)
1
Negative Vport
Positive Vport
2
Negative Vport
Positive Vport
3
Positive Vport
Negative port
4
Positive Vport
5
Positive Vport
6
Positive Vport
Negative Vport
7
Negative Vport
8
Negative Vport
Be sure the twisted pair cable is bound with the standard RJ-45 pin, especially the pin 1, 2, 3 and 6.
If the RJ-45 is bound with the wrong pin number, PoE switch will not recognize the PD and won’t
deliver DC power to PD. The yellow PoE LED will light up when the cable is correctly connected.
Refer to the
LED Indicator
section for descriptions of each LED indicator. If a port LED is off, go
back and check for connectivity problems between that port and the network device connected.
