Huawei DBS3900 Installation Manual page 42

LampSite
Installation Guide
l Ensure proper grounding of the RHUB3908 using a PGND cable.
l When installing the PGND cable, tightly press the OT terminal in the correct direction, as
Figure 5-30 Correct direction of an OT terminal for the PGND cable
Procedure
Step 1 Route the PGND cable by referring to Requirements for Cable Layout.
Step 2 Use a torque screwdriver or Phillips screwdriver to secure the M4 OT terminal at one end of the
PGND cable to the ground screw on the RHUB3908 panel with a torque of 1.4 N•m. If the OT
terminal is a one-hole OT terminal, connect it to the ground screw on the lower part of the
RHUB3908 panel, as shown in
Issue 08 (2015-01-15)
NOTE
l If the PGND cable is provided by the customer, a copper-core cable with a minimum cross-sectional
2
area of 6 mm (0.009 in.
l The OT terminals at both ends of the PGND cable are assembled at the site.
l The M6 OT terminal has the default size. You can replace it with another OT terminal of the expected
size based on the site requirement.
NOTICE
shown in Figure 5-30.
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2
) or 10 AWG is recommended.
Figure 5-31.
5 Installing an RHUB3908
37