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Siemens 3AD8 Instruction Manual page 10

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Item
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Figure 3: RCU mounted on pole
Figure 4: Main internal elements
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Description
RCU enclosure
Shade hood
Padlockable handle
Cable-entry glands
Pole-mounting bracket
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Item
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RCU external features
As shown in Figure 3, the RCU enclosure in
mounted to the pole using the pole-
mounting bracket. Various options for how
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the pole-mounting bracket connects to the
pole and the installation methods are
discussed in section RCU mounting on page
25. The RCU enclosure itself is
manufactured from powder-coated stainless
steel for long service life. Material options
are available at time of ordering including
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409- and 316-grade stainless steel.
The RCU enclosure has a handle with
internal three-point locking mechanism. An
external padlock can be fitted to restrict
access. The locking mechanism will accept
padlocks in the size range diameter .24-.39"
(6-10 mm) shank.
On the top of the RCU enclosure is a high-
grade UV stabilized plastic shade hood. This
shade hood fulfills two functions:
1. Reduces the affect of enclosure heating
2. Provides an aperture for the short-range
At the rear of the RCU enclosure, there is a
ground connection stud and a number of
apertures fitted with cable glands to allow
external wiring to access the internal of the
RCU for items such as:
Remote control internal features
The RCU enclosure provides a protective
shell for the electronics housing and radio
tray as shown in Figure 4.
Description
Electronics housing
Radio tray
from direct sunlight onto the top of the
enclosure.
radio in the RCU to send and receive
signals to and from the Fusesavers
above.
An auxiliary power supply or VT supply
Solar power supply
External antennas.

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