Training, Installation & Service Manual - Livewire Connections Ltd

For more information about power supply and power requirements
see Connecting power on page 5-1.
3.4.2 Grounding the ACU (bulkhead)
Make sure that the grounding requirements are met. This is
important to protect the ACU against lightning. See the appendix
Grounding and RF protection on page F-1 for details about
grounding.
Installation of the ACU (bulkhead)
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3.4.2.1 ADU cable
The ADU is connected to the ACU with the ADU cable (coax cable)
with an N connector at both ends. For information on ADU
grounding, see Grounding the ADU on page 3-23.
At the ACU end, it is strongly recommended to ground the ADU
cable. Use a short cable from the ACU to a grounding point and
connect the short cable to the ADU cable at this grounding point,
making sure the shield of the connector is properly connected.
Installation
3.4.2.2 Ground stud
To ensure that the ACU is grounded – also if the cable is
disconnected from the ACU, connect an extra ground wire to the
ground stud on the ACU. This ground wire must be a heavy wire or
braid cable with a larger diameter than the coax cable (minimum
cross section: 4 mm 2 ).
Ground stud
Figure 3-25: SAILOR 900 VSAT ACU, bulkhead version, ground stud
98-133966-E2 Chapter 3: Installation 3-27