The EDR, made by EARTH DATA (U.K.), is a digital recording system for stand-alone use,  but also for use with communication (e.g. real-time data via SEEDlink).
Adaptor cables are available for all types of broadband seismometers belonging to the DEPAS pool.
Digitiser SetUp and Control can be done via serial link (manufacturer software). Additionally, a GFZ-GIPP made Recorder SetUp and Status View Software (including Digitiser Parameters) is available for the use of WIN/DOS. The GFZ User Software also supports Group SetUp; and the Control functions, as Status View and Configuration File Download, are performed as one-key commands.
Data Retrieval is supported by GFZ User Software and by a set of disk adaptors cables to connect the hard disk to standard USB-2.0.

EarthData EDR-210 Recorder, 143 units
140 Units      3 Channels
3 Units          6 Channels

Hard Disk, 140 units
143 Units     32.0 GByte

Parameters - Input Signal
Channels                     3 or 6, plus 8/4 auxiliary
Preamplification      1; 10 ; 0.4; 50

Digital Signal
Sampling Rate     1; 2; 4; 5; 10; 20; 25; 40; 50; 75; 100, 120; 125; 150; 200; 250; 300; 375; 500; 600; 750; 1000 sps; 3000 sps (reduced dynamic range)                                  
Resolution               MiniSEED, ASCII: 1 microVolt/digit ( @ PreAmp = 1 ) digitiser output: 3.9 nanoVolt/digit
Dynamic Range      140 dB @ 100 sps, 150 dB @ 10 sps, 125 dB @ 1000 sps

Time Keeping
Clock                           ±10 µs (GPS locked)
Synchronisation     GPS, continuously or cycled

Data Storage
Hard Disk                   Solid static disk (FAT 32)
Storage Format      ASCII, upper 3 Bytes of digitiser output MiniSEED, compressed (Steim-1), based on upper 3 Bytes 'legacy', PR2400 multiplex (equivalent to digitiser output)

Physical Parameter
Power Consumption              0.8 Watts to 1.2 Watts (@ 3*100 sps)
Weight                                          Recorder, including disk: 1.6 kg
Operating Temperatures      Recorder and Disk: -20 to +60 °C

Connectors  (Front Panel, Hard Disk)
Power Consumption Calculator