Test Procedure For Optional Sig.distributor; System Signal Flow; Final Inspection - JRC JLN-900 Installation And Instruction Manual

5

Test procedure for optional Sig.Distributor

Check that the Sig.Distributor enters normal operation mode and presents the correct speeds to
different users.
It should also be noted that there are numerous settings to be done on the Sig.Distributor in order to
configure outputs etc. This is described in the Sig.Distributor manual section of this manual.

5.1 System signal flow

The different sections of the manual covers installation and also describes testing procedures for each
sub-unit. Especially the section about the Sig.Distributor (if this is included) contains useful
information about testing large installations.
If correct operation of all connected indicators and users (radar etc) was not verified during the tests
described in the previous sections, the following procedure can be used to verify signal flow
throughout the system:
a) On the STW part of the log, WTU: go to the menu for simulated speed using the Speed Log
Master Display and enter a value of +10 knots.
b) All connected indicators and/or display in Sig.Distributor (if present) should display STW
speed 10 knots ahead. If not, NMEA connection from Sig.Processor should be checked.
Also all connected external equipment (via relay or opto-coupler pulses or IEC 61162-
1/NMEA 0183 serial data) should display STW speed 10 knots ahead.
c) Put the STW log back to normal operation mode.
d) Set the SOG unit to internal test mode by entering menu T1 in the SOG unit menu system. The
SOG part of the Sig.Processor now generates simulated speeds and depth according to T1
e) All connected indicators and/or display in Sig.Distributor (if present) should display according
to values in menu T1. If not, NMEA connection from Sig.Processor should be checked. Also
all connected external equipment (via relay or opto-coupler pulses or IEC 61162-1/NMEA
0183 serial data) should display these values.
f) Put the SOG log back to normal operation mode.
6

Final inspection

When the system have passed all tests the protocol is signed with signature and date. Send one
copy to JRC for reference purposes.
13-9