Training, Installation & Service Manual - Livewire Connections Ltd

Figure 3-30: ACU, LAN connector at the front: Service port
For information on wiring 24 VDC power see DC Input connector on
page 4-3. For more information about power supply and power
requirements see Connecting power on page 5-1.
Installation of the 19” rack version of the ACU
Service port
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3.5.2 Grounding the 19” rack version of the ACU
Make sure that the grounding requirements are met. See the
appendix Grounding and RF protection on page F-1 for details about
grounding.
Installation
3.5.2.1 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 in the
rack and connect the short cable to the ADU cable at this grounding
point, making sure the shield of the connector is properly connected
to the rack.
3.5.2.2 Ground stud at the ACU
To ensure that the ACU is grounded – also if the ADU cable is
disconnected from the ACU, connect an extra ground wire from the
rack 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.
Figure 3-31: ACU, 19” rack version, ground stud
98-133966-E2 Chapter 3: Installation 3-31