ewexport2ringserver collects time series packets from an Earthworm export process, converts the data to 512-byte miniSEED records and transmits the records to a ringserver (via DataLink). The ringserver program is commonly configured to serve the data via the SeedLink protocol.

A SeedLink server for Earthworm

Due to the differences between Earthworm Tracebuf packet lengths and miniSEED records, the program maintains a small internal buffer for each time series. This allows the program to create full and efficient miniSEED records, but also introduces a slight delay or latency in the data transmission. The amount of delay depends on the sample rate of the data and the compressability of the series, for most purposes it is inconsequential.