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2. WIRING
2-6
2.2.2 FAR-2837SW (RSB-104/105)
The signal cable MPYCY-12 (Japan Industrial Standard cable or equivalent), power cable
TPYCY-2.5 (Japan Industrial Standard cable or equivalent) and microwave coaxial cable
(LHPX-20-ASSY) are used between the antenna unit and transceiver unit.
MPYCY-12 single cable
Conductor
S = 1 mm
= 1.29 mm
2
MPYCY-12
Armor
Sheath
= 19.0
mm
Sheath
Insulator
MPYCY-12 cable, sectional view
Antenna switch
Signal cable (MPYCY-12)
Power cable
Antenna unit, front view
1. Remove the right-hand side cover from the antenna unit by unscrew ten bolts (13 mm).
2. Unfasten the clamping gland (for signal cable), and remove the gasket, flat washers and
cover.
3. Fabricate MPYCY-12 cable as below.
20 mm
Armor
Vinyl sheath
Vinyl sheath
360 mm
5 mm
6 mm
4. Slide the clamping gland, flat washer, gasket and flat washer in that order on to the
cable. (See the figure on the next page.)
5. Fold back the armor by 5 mm, then put it between washers.