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2.6
Junction Box
The junction box connects the transceiver to the hull unit using (10) S10-19 cables
from the transducer (hull unit) to the junction box and (10) S10-20-5/10/20 cables
from the junction box to the transceiver unit.
1. Remove the junction box cover.
2. Remove the cable clamp and the metal PC board clamp.
Connect signal
cables (S10-19)
from Hull unit
Connect signal cables
(S10-20-5/10/20)
from transceiver
Upper: Cables from
Hull unit (S10-19)
Lower: Cables from
transceiver (S10-20-5/10/20)
Cable ends are labelled "To Junction Box"
3. Pass the signal cables through the cable clamp, then secure them to the edge
saddle and LWS clamp. The cables should be connected as shown in the diagram
above, with the "To Junction Box" label side connecting to the junction box.
4. Place the shielded section of the cables in the cable clamp.
5. Secure the cables with the cable clamp.
Secure a ground plate (local supply) to the junction box's earth, then connect the
junction box earth to the ship's earth.
JCTN20 board through to JCTN1 board
Cable clamp
10
9
8
7
6
5
4
10
9
8
7
6
5
4
JCTN1 board ~
JCTN 20 board
connections
20-B3
2-B3
19-A3
1-A3
3
2
1
3
2
1
Cable
Cable
No. 10
No. 1
Signal cables
from transceiver
(S10-20-5/10/20)
2. WIRING
JCTN1 board ~ JCTN 20
board connections
20-B1
2-B1
19-A1
1-A1
20-B2
2-B2
19-A2
1-A2
Cable
Cable
No. 10
No. 1
Signal cables
from Hull unit
(S10-19)
2-11
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