JRC JLN-900 - 6 Test Procedure for Sig.distributor; 7 Speed Log Master Display in JLN-900 Speed Log

12-5
6 Test procedure for Sig.Distributor
Refer to and note in protocol on page 12-11!
x Note revisions and serial numbers of the Sig.Distributor and the three PCBs in the
protocol.
x Connect power to the Sig.Distributor wait for completed start-up and then use the
NWW-82 Master Display to access the menu system in the Sig.Distributor.
x Revisions of software and firmware can be inspected via the menu system (M8 and
M9). Note the revisions in the protocol.
x Refer to the manual to access the Sig.Distributor menu system via the NWW-82
Master Display. Generally default settings are used. If any customer or installation
options, then set and note accordingly, e.g. for Docking Log function.
x Actual speed and depth values from the speed log can be viewed on the start menu of
the Sig.Distributor. The next tests verify that the connections between the JLN-900
Speed Log speed log Sig.Processor and the Sig.Distributor are correct.
x Set the SOG speed log in speed simulation, i.e. default values in menus:
T1 BTLONG= +12.00KN, T2 BTTRANS= +0.09KN and T3 DEPTH= 10.0 M.
Check that same values are displayed in the start menu of the Sig.Distributor.
x Check that the NMEA-message contains same values and signs and corresponds with
the NMEA standard $VDVBW message as defined in Technical Document
i
i
11 .
x Verify that all NWW-82 indicators and external users of Sig.Distributor information
receive the simulated speed and depth (NMEA, pulse and analogue users).
x Restore the SOG to normal operation. If the depth below the hull is at least 2 metres,
the SOG shall lock to the depth and present zero or close to zero speed.
x A similar test procedure can be done from STW by entering the T1.1 menu as above
and verify STW speed to appear on all displays and users.
x Exit all Simulation modes and Menu mode and return to normal operation.
7. Speed Log Master Display in JLN-900 Speed
Log
Refer to and note in protocol on page 12-7!
x A set of labels, intended to identify the Speed Log Master Display function, is
provided for all JLN-900 Speed Logs and normally found in a plastic bag
attached to the Sig.Processor unit.
x Verify that these labels are applied accordingly to the dedicated NWW-82 Main
Display as connected to the Sig.Distributor for the Master Display function.
Refer to the manual for instructions.