1. RefTek Systems TrainingRT
RefTek Systems Training
Dec 1-2, 2009

2. RT-130 Connections & Communications

3. RT-130 ports

4. RT-130 Internal boards

5. RT-130 Specifications Input voltage: 10 to 16 VDC
~1.4W w/ 3 channels & communications
~2.1W w/ 6 channels & communications
24 bit output resolution
Full scale of 20 x1
Bit weight of x1
Sample rates: 1000, 500, 250, 125, 50, 25, , 100, 40, 20, 10, 5, 1
Time accuracy w/ GPS locked +/- 10 usec
Supports Ethernet TCP/IP, UDP/IP, FTP, RTP
Serial command interface w/ Palm Field Controller
Supports several recording modes: including continuous, event, level, vote
RAM 5 Mbytes
2 CompactFlash drives: 2, 4 & 8 Gbytes available
LCD display allows external monitor status of various subsystems w/o a PFC_Palm attached

6. RT-130 Operation
Points of Interest

7. RT-130 Operation Points of Interest: Disk Recording
Disk Recording – Dump Threshold:
Disk Recording – Disk Wrap:

8. RT-130 Operation Points of Interest: RTP Connection – Keep/Toss choice
: Keep or Toss
Note:

9. RT-130 Operation
Points of Interest: Datastreams
Note:

10. RT-130 Operation Points of Interest: Sample Rate Groups (2)
Thus if 125 sps is selected for datastream 1, then datastream 2 will default to 125 sps and so forth. No other choices available.
Thus if 40 sps is selected for datastream 1, then datastream 2 can be sampled from any of the choices available in Group 2 and similar for other datastreams.

11. Points of Interest: Pre-event– Buffer Considerations
RT-130 Operation
Points of Interest: Pre-event– Buffer Considerations
RAM used by a single stream is estimated by:
Ex. of sps w/ 4 sec pre-trigger is:
Note:

12. RT-130 Operation Points of Interest: Pre-event– Buffer Considerations
Continued
Beginning with firmware version 2.9.0, calculations to evaluate available buffers for pre-event memory were changed from:
buffer usage to longword usage.
Then beginning with the number of longwords was increased to 84,150 longwords. Longwords are allocated starting at stream 1, then stream 2, then stream 3, etc. until buffers are used up; And memory is divided between the A/D converters.
Default usage: (think of a longword as a buffer.)
Continuous stream uses 13 sec of longwords.
Triggered stream uses 7 sec + the user specified pre-event time of longwords.
Calculation: [(Sample rate * # of channels)  +  6] = longwords / second. 

13. Points of Interest: Pre-event– Buffer Considerations
RT-130 Operation
Points of Interest: Pre-event– Buffer Considerations
Continued
Example:
Stream 1 = 100 sps, 6 channels, continuous trigger
[ (100 * 6) + 6] = 606 longwords/second
606 longwords/second * 13 seconds (continuous) = 7878
 Subtract 7878 from and longwords left for other streams.
Stream 2 = 200 sps, 6 channels, event trigger with 30 seconds pre-event
[ (200 * 6) + 6] = 1206 longwords/second
1206 longwords/second * 37 seconds (pre-event + 7 seconds) = 44622
 Subtract from and longwords left for other streams. 
So, one could add a 3rd continuous stream if you wanted to, or you could increase the pre-event of the second stream by 20 seconds.

14. RT-130 Operation Points of Interest: Bit Weights
The RT-130 uses the Crystal 24-bit chip set. The chip set outputs a limited digital count range of +/- 6,291,456 counts for the specific analog full scale input range. The maximum full scale analog input voltage (V fs) corresponds to the maximum full scale digital value.
Thus the bit weight for the DAS is: (V fs)/6,291,456
The RT-130 has an analog input of 20V P-P or +/- 10V. Therefore the True Nominal Bit Weight of the RT-130 is:
1.589 unity gain
Note:
Other gains available are x32 & x100: (V fs)/6,291,456/xGain)

15. RT-130 Operation Points of Interest: VCXO
Accuracy with GPS is +/- 10 usec after validated 3-D fix & locked

16. RT-130 Operation Points of Interest: Calibration Signals
Note: Not all of the Cal parameters are applicable to all signal types.

17. RT-130 Operation: Firmware Updates4. 5.

18. RT-130 Interface
PFC_Palm
DAS Control

19. RT-130 Interface with PFC_Palm
Initial window view:

20. RT-130 Interface with PFC_Palm
Control Menu view:

21. RT-130 Interface with PFC_Palm
DAS Status view:

22. RT-130 Interface with PFC_Palm
DAS Acquisition status view: Start Acquisition

23. RT-130 Interface with PFC_Palm
DAS Load Parameter (LP) & Write Parameter (WP) view:

24. RT-130 Interface with PFC_Palm
DAS Load Parameter (LP) & Write Parameter (WP) view:
Continued
However:

25. RT-130 Interface with PFC_Palm
GPS status view:

26. RT-130 Interface with PFC_Palm
RTP Server (RTPD) status view:

27. RT-130 Interface with PFC_Palm
DAS Event Trigger status view:

28. RT-130 Interface with PFC_Palm
DAS Version status view:

29. RT-130 Interface with PFC_Palm
DAS Time & Set Time status view:

30. RT-130 Interface with PFC_Palm
DAS Net & Set Net status view:

31. RT-130 Interface with PFC_Palm
DAS Net & Set Net status view: continued

32. RT-130 Interface with PFC_Palm
DAS Net & Set Net status view: continued

33. RT-130 Interface with PFC_Palm
DAS Net & Set Net status view: continued
Example values:
Note: Will defer Serial PPP status view because CERI not using this type of interface. Similar but includes baud rate & serial connections to devices such as Freewave, AT/modem, etc.

34. RT-130 Interface with PFC_Palm
DAS RAM status view:
Ex. 6
380

35. RT-130 Interface with PFC_Palm
DAS Reset status view:
NOTE: This will perform a “soft” reset of internal setup & parameters. It will not perform a “hard” power cycle.

36. RT-130 Interface with PFC_Palm
DAS Monitor status view:

37. RT-130 Interface with PFC_Palm
DAS Auxiliary Control status view:

38. RT-130 Interface with PFC_Palm
DAS Auxiliary Control status view: Example Aux. Ch.
NOTE: By default

39. RT-130 Interface with PFC_Palm
DAS Auxiliary Control status view: Aux. Ch.

40. RT-130 Interface with PFC_Palm
DAS Auxiliary Control status view: RAM Test

41. RT-130 Interface with PFC_Palm
DAS Disk status view:
Two disks must be installed.

42. RT-130 Interface with PFC_Palm
DAS Disk status view:

43. Now open PFC_130.pdf on page 39
RT-130 Interface
PFC_Palm
DAS Configuration
Now open PFC_130.pdf on page 39
(page 55 in pdf file)