Nautel NX400, Installation Manual

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NX400 Installation Manual Unpacking and positioning
Page 2-4 Issue 1.0 2017-06-30
8. Install the RF output connector, which was partially disassembled for shipment, on top of
the antenna ground switch installed in Step 7 (see Figure 2.4 on page 2-7 ). Re-install the
antenna ground switch’s right-hand side cover.
9. Close and lock the filter panel and re-install the 23 retained M5 screws. Close the front door
of the transmitter. Continue with transmitter installation.
10. Verify that the RF antenna feed reaches the connector on top of the output cabinet.
11. Unlock and open the rear door of each cabinet. Locate the arc detector assembly (A64 in
racks 1 through 4) on the right-hand interior wall, near the low voltage power supplies (see
Figure 2.5 on page 2-8 ). Remove the packing material that has been used to protect it from
vibration damage during shipping. Close the rear doors.
12. Obtain four stiffener brackets [Nautel Part # 207-8296 (qty 1), 207-8296-01 (qty 1) and
207-8296-02 (qty 2)] for each transmitter cabinet from the ancillary kit. Install them on the
top of each cabinet as shown in
Figure 2.6 on page 2-9 . Use the existing hardware that
secures the exhaust duct's grill to secure the stiffener brackets. These brackets provide
additional mechanical strength to the top of the cabinet(s).
13. Locate the cable tray parts kit that was provided to support the cables that will connect ac
power between the ac power disconnect switch and the primary for the power transformer,
and also between the secondary of the power transformer and the transmitter cabinets.
These parts may have been ordered from Nautel (Cable Tray Parts List # 207-8385-**) or
purchased from an alternate vendor. Install the cable tray system according to your
transmitter system dimensions. If the cable tray kit was purchased from Nautel, refer to
Section 5 - Electrical Requirements of the NX400 Pre-installation Manual for standard
drawings and parts lists or to the provided system manual for custom drawings and parts lists
- to aid in the installation.
WARNING:
Take special care when removing the packing material from the arc
detector’s UV sensor so it does not receive impact shock. Do not allow
skin contact with the glass face. Wear clean gloves to ensure no oils from
your skin contact the surface of the glass.