INSTALLATIONS
2-4
③ Cable layout
Refer to the interconnection diagrams in chapter 1, the external dimensions and equipment
overview in this chapter, and the following recommendations to install the cables.
• Keep the cables as short as possible.
Note) As mentioned above, the maximum allowable distances between the MF/HF transceiver
(NTD-2150) and the MF/HF controller (NCM-2150) and between the MF/HF transceiver
(NTD-2150) and the antenna tuner (NFC-2150) are 70 meters and 30meters,
respectively.
• Be sure to use twisted pair cable for control cables to connect the MF/HF transceiver
(NTD-2150), junction box (NQD-2253), connection box (NQD-2250), and the MF/HF controller
(NCM-2150).
• When cutting cables, allow enough slack to connect and disconnect them from the terminals and
move the equipment for maintenance.
• Install the cables as far as possible from the smokestack or things that are hot. Protect the
antenna cables with a heat shield if they might be exposed to hot gas from the smokestack.
• Keep the cables as far as possible from magnetic compasses. The minimum distance from a
magnetic compass is 2 meters for braided armor cables and 1 meter for other cables.
• Use TTYCS (twisted pair) cable wherever it is specified in the interconnection diagram, even
when replacing the radio equipment.
④ Equipment installation
Refer to the external dimensions and equipment overview in this chapter when installing the
equipment.
⑤ Wiring
Refer to the interconnection diagrams in chapter 1 and the external dimensions and equipment
overview in this chapter when wiring the equipment.
Note) After connecting the wires but before turning on the power, check cable connections, wires
to the terminals, and the connecting bar setting for the AC input voltage of the battery
charger (NBB-724).
Additionally, regarding initial settings and operation check, refer to the service manual.
To Next Page
Loading...
