Antenna Unit (X-Band, Tr-Down) - Furuno FAR-3210 Installation Manual

2. WIRING
2.3

Antenna Unit (X-band, TR-DOWN)

2.3.1 How to fabricate the cables
Three cables are connected to the antenna unit: the serial cable from the transceiver
unit, waveguide (FAR-3220W-BB/3320W) or microwave coaxial cable (FAR-
3230SW-BB/3330SW), and power cable for the de-icer (option).
TTYCYSLA-10 (for serial cable)
Clamp the armor with the cable clamp.
Outer sheath Armor
DPYCY-1.5 (for the optional de-icer)
• Before beginning any work on the Antenna Unit, turn off the breaker for the de-icer
at the mains switchboard. (Turning off the display unit has no effect.)
• The de-icer activates when the temperature becomes 0 °C, and shuts down when
the temperature reaches 5 °C.
Clamp the armor with the cable clamp.
Outer sheath Armor
Flexible waveguide
The connector at the antenna side is preattached to the flexible waveguide. The bend-
ing radius shown below must be observed to prevent damage to the waveguide.
E-bend: 200 mm, H-bend: 400 mm
2-14
490 490
40 40
5 5
Drain wire Drain wire
Inner sheath
Vinyl tape
10 10
35 35
Inner sheath
Vinyl tape
Pass the heat shrink tubing (local supply)
onto the drain wire.
945 945
Spiral tubing
6
6
Crimp-on lug
(unit: mm)
(unit: mm)
6
Crimp-on lug
(FV2-M4)