Kongsberg Seatex Seapath 200, Installation Manual

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Seatex Seapath 200 Installation Manual, rev. 13 Installation
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3.4.2.1 MRU to Processing Unit cable wiring
The MRU can be connected to the Processing Unit in the following three ways:
•
A cable with the MRU connector in one end and a DB-15 male connector for the
Processing Unit in the other end.
•
A cable that is terminated in the MRU junction box in one end and with a DB-15 male
connector for the Processing Unit in the other end.
•
A cable that is terminated in the MRU junction box in one end and terminated in the
Processing Unit connection box in the other end.
For the first two alternatives the cable wiring is as follows:
Processing Unit Signal Pair no. MRU junct. box MRU connector
Pin no. Colour Pin no. Pin no.
1 screen chassis (x3 side) A
7 PGND 1 blue 2 (x1 side) B
14 +24 V 1 white 1 (x1 side) R
2 TX+ 2 white 3 (x1 side) C
9 TX- 2 blue 4 (x1 side) T
3 RX+ 3 white 5 (x1 side) S
10 RX- 3 blue 6 (x1 side) P
11 XIN 4 white 23 (x1 side) U
5 LGND 4 blue 24 (x1 side) a
For the last alternative with termination in the MRU junction box in one end and termination
in the Processing Unit connection box in the other end, the cable wiring is as follows:
Processing Unit Signal Pair no. PU connection box MRU junct. box
Pin no. Colour Pin no. Pin no.
1 screen 9 chassis (x3 side)
7 PGND 1 blue 2 2 (x1 side)
14 +24 V 1 red 1 1 (x1 side)
2 TX+ 2 yellow 3 3 (x1 side)
9 TX- 2 green 4 4 (x1 side)
3 RX+ 3 pink 5 5 (x1 side)
10 RX- 3 grey 6 6 (x1 side)
11 XIN 4 brown 7 23 (x1 side)
5 LGND 4 white 8 24 (x1 side)
The MRU is supplied with 24 VDC power from the MRU port on the Processing Unit.
Note
The shield around each pair in the cable has to be individually isolated in the DB-
15 connector. The outer shield is connected to pin 1 (screen) in this connector,
which is an open end (not connected to earth). In the MRU junction box both the
shield around each pair and the outer shield are terminated in pin 1 (chassis) on
the x3 side.