Furuno NAVNET 1933C-BB - Manual (Page 35)

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CABLE GLAND
Plate
Gasket
Flat
washer
Bolt
Vinyl sheath
within 4 cm
Tubing
Shield
How to fix signal cable in cable gland
6. Unfasten four screws shown in the figure below.
Four screws
Antenna unit chassis, cover opened
7. Pass the signal cable through the cable protector.
Cable
protector
Antenna unit chassis, cover opened