User's Manual

1027145–0001 Revision D Installing indoor hub equipment 6–17Hub installation
Ground IDU chassis with a dc power supply as follows:
1. Use a 2–hole lug to connect a No. 14 AWG ground wire to
the ground terminals on the front of the power supply
(figure 6-12).
Figure 6-12 Ground terminals on dc power supply
hb049
DC power supply
Ground terminals
2. Connect the other end of the ground wire to the rack ground
bar. If the IDU chassis is not rack mounted, connect the
ground wire to a ground point such as a water pipe or
building steel.
WARNING
To avoid the risk of electric shock,
remove power from the power circuit
before connecting power cables to the
IDU chassis power supply.
WARNING
The IDU chassis must be solidly bonded to a
low–impedance ground (earth) source.
To avoid the risk of electric shock and/or
equipment damage, do not apply power to
the IDU chassis without a ground reference.
Grounding the dc IDU
chassis
Connecting dc power