WSM6 Manual
Document Ref: UM-8270-000
Issue: A Rev 0
Section 5
30
October 2011
5.3.10
After Use
After in-water operations, the unit should be thoroughly soaked in warm fresh water, to dissolve salt
and wash off sand or silt, especially around the ON/OFF switch and the external connector. The
cable or dummy plug can be removed to wash the external socket. When dry, lubricate the
connector with a light coating of lubricant refer to
Section 6.6 - Lubrication
.
Switch
OFF
before charging or storing.
If the unit is believed to be serviceable, it should not require any attention apart from charging and
washing, and should therefore not be dismantled.
5.3.11
Acoustic Command Functions
The ‘Command’ concept refers to the remote control of the operating modes of a transponder by
coded acoustic signals, generally transmitted from a Sonardyne transceiver operated from a
surface vessel. The basic applications are to ‘
ENABLE’
and ‘
DISABLE’
the transponder. The
essential requirement is high security with a very low probability of false actuation. The traditional
technique is a pulse position code using three tone bursts of different frequencies. The three pulses
uniquely define the address of the commanded WSM6, and the command function to be executed.
The command address of the unit is a three or four digit number that is set using the test software
and a serial link cable. Refer to
Section 7.4.2 - General Status
The first two digits of the address are known as the command code. The preferred range is 33 to
47.
The Wideband Sub-Mini can accept acoustic commands from the following transceivers:-
7663 MF LCU with firmware 4.00 or greater,
7574 MF Directional LCU with firmware 4.00 or greater
8010 MF RovNav 5 with firmware V7.0 or greater
8021/3 Digital USBL with firmware V7.0 or greater
The Wideband Sub-Mini can accept acoustic commands from the following test units:-
7343 ANT with firmware V2.25 or greater,
8063 Deck test Unit (DTU).
The Wideband Sub-Mini cannot accept acoustic commands from the following transceivers unless
the first two digits of the address are changed to be in the range 01 to 15:-
Type 7145 PAN transceivers.
Type 7807 MF Mk4RovNav
Type 7842 MF Mini RovNav
Type 7769 analogue USBL
