Transas T214, Technical Manual

Page: 81 / 115

AIS Base Station Т 214 test functions
Chapter 6. Commissioning.Internal configuration
79
RcCnt C: batch counter on channel C ;
TrCnt/DW/RW: transmitted packet counter / direct power / reflected power;
Memory: memory (used/free) ;
Fragmentation: free memory fragmentation number : range of minimal
fragmentation – range of the biggest fragmentation.
Characterizes the work of memory manager (heap) ;
Occ.Slots: slot organization (on channel A/B). Number of slots
allocated by another stations: number of slots where
transmission has already planned: counter of the slots till
ending of listening VDL when SOTDMA is used: counter of
slots till ending of SOTDMA schedule deployment;
Slot pool(u/f):
used/free memory available to store information about slots;
Rrq/Fspare: number of RATDMA requests in queue/number of free
FATDMA slots which can be used for transmission of
unscheduled messages
Rep.rate: Position Reporting rate (Msg4) when SOTDMA or RATDMA
are used;
Bckg RSSI:
Interference environment (RSSI, averaged for one minute in
slots where messages are absent (channel A/ channel B).
ПРИМЕЧАНИЯ :
1. Synchronization type meanings:
No – no synchronization;
Lost – synchronization is lost;
Direct – “Direct” synchronization with PPS;
I:<MMSI> – synchronization to messages received from “Direct”
synchronized AIS equipment; B:<MMSI> – synchronization to Base
Station which has “Direct” synchronization mode; S:<MMSI> –
synchronization to messages received from vessel AIS which is not
"Direct" mode.
2. Channel number; W – bandwidth of 25 кГц , N-12.5 кГц ; E – reception
/transmission is allowed, D – reception/transmission is prohibited.
6.11.5
Alarms and Status information
To view current Alarms and Status information select “press” Alarms/Status button
on main screen: