H3C S12500X-2L, Quick Start Manual, Page: 22 / 27

3-12
2. Use screws to attach the DC input terminal block to the rack.
Figure 3-14 Attaching a DC input terminal block to a rack
To connect power wires to a DC input terminal block:
1. As shown by callout 1 in Figure 3-15 , insert the wires of the extension cable into the upper-row
terminals on the DC input terminal block, and insert the other ends of the wires into the
terminals on the power distribution cabinet.
2. As shown by callout 2 in Figure 3-15 , insert the wires of the DC power cord into the lower-row
terminals on the DC input terminal block, and insert the other ends of the wires into the
terminal block on the switch.
Figure 3-15 Connecting wires to a DC input terminal block
(Optional) Installing transceiver modules
CAUTION:
•
To prevent particles from entering the ports, install the dust plugs that come with the interface
modules in the QSFP+/QSFP28 ports if you are not to install transceiver modules or cables in
the ports.
1RU
Flat-head screwdriver
RTN
NEG
RTN
NEG
1
2