Sonavision Ltd.
Aberdeen, Scotland
Issue 6
2392-31-0008
Page 11 of 19
2.4 ROUTINE MAINTENANCE
a.
Wash with fresh water after each recovery to remove sea water, mud,
silt and any other contaminants.
b.
Inspect the condition of the hood and mating connector and cabling at
regular intervals for oil leaks and / or signs of damage.
3.1 TABLES
TABLE 1
Wiring details – Sonar 6-way Impulse Connector LPMBH-6-MP (fitted as
standard to the sonar unit)
PIN
RS485
(two wire
mode)
RS485
(four wire
mode)
RS232
CABLE WHIP
COLOURS
5
0v
0V
0v
Blue
2
+24v
+24v
+24v
White
4
RS485 TX/RX-
Rx-
RXD
Green
3
RS485 TX/RX+
Rx+
COM
Red
1
Tx+
Black
6
Tx-
TXD
Brown
TABLE 2
RS232 System wiring – signal connections only. Use this data to check end to
end on an ROV to see that all signal connections are correctly made through
the umbilical and interconnects.
PC COM Port Pin No.
Signal Name
Sonar Conn. Pin No
N/C
1
+V Supply
2
5
GND (RS232)
3
3
RXD
4
0V
5
2
TXD
6
1.1.1 TABLE 3
RS485 System wiring (2 wire) using RS232 / RS485 converter – signal
connections only. Use this data to check end to end on an ROV to see that all
signal connections are correctly made through the umbilical and
interconnects.
RS485 System Wiring (2 wire)
232/485 Converter Pin
No.
Signal Name
Sonar Conn. Pin No
N/C
1