T
Thrane & Thrane
T
TT-3020B C p a ra
Capsat Transceiver
I
t l
o
l
Installation Manual
P g
Page 2
42
5
30MAY95
4.2
The first login (commissioning)
The
i
i
first login
attempt from the unit (which is automatically performed by the
Transceiver) will be recognized by the Network Coordinating Station (NCS) and served
normally, (downloading a Land Earth Station (LES) network table into the Transceiver)
and inform the Network Database the new unit is present and being commissioned.
After the NCS has logged the unit into the Inmarsat-C Network, it instructs an
predefined LES to start a Link Test with the unit. The LES ID is stored in Inmarsat's
database of mobile units.
When the Link Test is done, the TT-3020B Capsat Transceiver is logged in and
commissioned.
4.3
Overview of a Link Test
The Link Test consist of three parts:
²
Message Reception Test
²
Message Transmission Test and
²
Distress Test.
The TT-3020B will ask you to perform a manual Distress Test but if you ignore the
request the Transceiver will automatically send the Distress Test after 2 minutes.
In the end of the test the Transceiver will receive the link test results.
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