Antenna Unit For X-Band, Tr-Down Radar - Furuno FAR-2218 Installation Manual

2. WIRING
2.3

Antenna Unit for X-band, TR-DOWN Radar

2.3.1 How to fabricate the cables
Three cables are connected to the antenna unit: the serial cable from the transceiver
unit, waveguide, and de-icer power cable (option).
For how to connect the WAGO connector, see "WAGO connector" on page 2-5.
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 neck of the antenna unit becomes VERY HOT when the de-icer is working.
(The de-icer turns on when ambient temperature goes down to 5°C and heats to
55°C.)
Clamp the armor with the cable clamp.
Outer sheath
Flexible waveguide
The connector at the antenna side is pre-attached to the flexible waveguide. The
bending radius shown below must be observed to prevent damage to the waveguide.
Bending radius
2-14
490 490
40 40
5 5
Drain wire Drain wire
Inner sheath
Vinyl tape
945 945
40 40
10 10
Armor Inner sheath
Vinyl tape
E-bend: 200 mm, H-bend: 400 mm
Pass the heat shrink tubing (local supply)
onto the drain wire.
(unit: mm)
Crimp-on lug (FV2-M4), supplied
Spiral tubing
6
6
Crimp-on lug
6
(unit: mm)