Dear Sirs,
Thank you for drafting international LRIT DC
specifications.
However, I think this document contains too many copies
from MSC210(81) - Performance standards and functional
requirements for LRIT(See attachment). As I stated some
weeks ago, copies from other official resolutions must be
avoided since this may cause conflicts between the two
documents. We can insert references to MSC210, but copies
must be deleted. The new information, which is not
contained in MSC210, is just the following CAPACITY
paragraph.
ADDRESS SYSTEM CAPACITY…
The International LRIT Data Centre shall be capable of
processing 50,000 SOLAS Class ships. Based on the
requirement for ships to transmit LRIT information four
times per day, this results in 50,000 x 4 reports per day
= 200,00 reports per day.
In this case, perperps amendments to the existing MSC210
should be proposed in IMO.
I think our task contained in the term of reference is to
develop "technical specifications". However, if there is
no need to develop additional documents, proposing
amendments to the existing MSC210 might be one of the
options.
Regards,
Sadatoshi Koike
--- "Cairns, William" <WCairns(a)comdt.uscg.mil> wrote:
Colleagues,
I have taken a first cut at re-packaging the
International LRIT Data Centre
functional spec (Note the doc name change with
date). Because of the many
changes, I have not presented this in track changes
mode...I accepted all
changes as I went through it. I am hopeful that you
will find this version
a "clean" place from which to continue. I welcome
your comments, additions,
etc. (Fresh ideas, too!)
Note the diagram in progress which should eventually
capture the data flows
(at a high level) for the IDC. If anyone feels
adept at powerpoint or some
other electronic crayon, feel free to make me look
bad and offer another
diagram!
Best regards
Bill Cairns, FRIN
Principal Engineer
Long Range Identification & Tracking
COMDT (G-PWN-3) USCG
Electronics Navigation Division
V: 202-372-1557
F: 202-372-1930
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