ASTER Real-Time Data Flow
Physical connections
A diagram of the physical connections sometimes used is here.
ADAM Internal Data Flow
A VxWorks/VME ADAM consists of three micro-processor boards in a VME chassis.
- Matrix CPU is the main processor
- Ironics serial processor
- Datel analog-to-digital processor, with optional multipluxer
These processors commumicate via shared memory over the VME backplane.
ADAM to Base System Data Flow
The sync process on the ADAM establishes a socket connection over
the network to an ingest process on the base system. Time tagged,
raw, high rate samples are sent to the ingestor over this socket.
Ingest Client Data Flow
Data clients then establish socket connections to the ingest process
on the base server.
Ingest Clients
Archive
The archive process archives the raw, high rate data samples.
Covar
Covar computes reduced statistics and writes them to standard out in
ASCII form or to NetCDF files via a nc_server process.
