Installation Manual
H3C S7500 Series Ethernet Switches
Chapter 4 Hardware Installation
4-8
Figure 4-8
Connect the DC power cables of the S7506
4.6.3 Connecting PoE Power Cables
Follow these steps to connect the PoE power cables:
1)
Loosen the nuts on the PoE terminal block cover and remove the cover.
2)
Loosen the nuts of the PoE terminal block on the rear panel of the switch.
(
1
)
(
2
)
(
3
)
(1) NEG (-) terminal for connecting external
PoE power supply
(2) RTN (+) terminal for connecting external
PoE power supply
(3) COM port (for monitoring external PoE
power supply)
Figure 4-9
Rear panel of S7506 XGbus
3)
Connect the –48V OT terminal of the PoE power cable marked with “–48V” to the
NEG (-) terminal on the switch and fasten the nut. Connect the other end to the
NEG (-) terminal on the panel of the external PoE power supply.