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(702) 487-6970
  info@RockfieldResearch.com
Fiber Optic Isolation
    Many applications require the transmission of signals across barriers of high-voltage or high-noise isolation.  These barriers preclude the use of conducting wires.  We have developed a suite of modules which faithfully reproduce analog and digital signals across these barriers in a plug-and-play fashion.

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SignalSquirt
full-duplex  F/O isolated analog
(6 analog + 12 digital each way, hi-speed)

The SignalSquirt is a general purpose redesign of the ASQUIRT and DSQUIRT units designed for the MIT fusion labs.  The specific I/O configurations needed for MIT have been replaced by higher speed, greater channel count, and lower price!

The SignalSquirt faithfully reproduces two, four, or six analog channels at 9-16 bit resolution (0-5V range) in each direction, along with twelve digital signals (TTL levels) in each direction.  Analog signals refresh at 4-18 kHz (depending on # channels active and resolution setting.)  Digital signals refresh at 12-18 kHz with analog signals active, or 30 kHz if analog transmission disabled.  Two additional digital outputs show the status of the link at each end.

User configurability of selectable addressing, which analog channels are in use, and required analog precision are settable over USB configuration port (no jumpers or dip switches).


  sigsquirt2


Breakout board & ribbon cable available separately, contact Rockfield Research for price & availability.

Ordering Guide:
Part Number:  SignalSquirt01-xyz

x=0..... std packaging, 5x4x1" enclosure, w/ AC PS, incl. USB cable
x=1.....OEM, board, no encl. alt pwr conn, no AC PS, incl. USB cable

y=2...... HFBR-1521 / HFBR-2521 Versatile Link 1mm F/O
y=3....... HFBR-1414 / HFBR-2412 ST conn F/O for 62.5/125 um fiber

z=N....... no power switch, hardwired always on
z=S....... SPST power switch

altsigsquirt

Order now with PAYPAL:
(you need two units for a communication link)
qty in stock 2/8/16:    5


configuration

Plus shipping (& sales tax in NV).     Domestic orders only, please.
(fibers and mating connectors not included)



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ASQUIRT01
full-duplex  F/O isolated analog
(2 channels, 12 bit, 10 kHz)

The ASQUIRT01 faithfully reproduces two analog channels in each direction across noise or voltage barriers over fiber. Checksums and ID codes maintain the integrity of the signals, and DIP switch selectable addressing ensures that multi-unit installations cannot operate on the wrong fiber. 

(Default configuration as developed for MIT fusion labs:  2-pin LEMO connectors, 0-10V range,  4 parallel F/O outputs.)

Comes with AC adaptor, does not include fibers or mating connectors.  (You need two units for a communications link.)


$825.00         plus shipping  (& sales tax in NV) 
(domestic shipments only, please) 
qty in stock 2/8/16:  2         (~8 weeks delivery if out of stock) 


         download the ASQUIRT01 manual  here                          
   
 

asq01



Order now with PAYPAL:
(standard MIT configuration only, contact Rockfield Research for alternate configurations)



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ASQUIRT02
full-duplex  F/O isolated analog
(16 channels, 12 bit, 1 kHz)

The ASQUIRT02 faithfully reproduces sixteen analog channels in each direction across noise or voltage barriers over fiber. Checksums and ID codes maintain the integrity of the signals, and DIP switch selectable addressing ensures that multi-unit installations cannot operate on the wrong fiber. 

(Default configuration as developed for MIT fusion labs:  D-sub 44pin connectors, 0-20mA range inputs, 0-10V range outputs.)

Comes with AC adaptor, does not include fibers or mating connectors.  (You need two units for a communications link.)


$675.00         plus shipping  (& sales tax in NV) 
(domestic shipments only, please) 
qty in stock 2/8/16:  0         (~8 weeks delivery if out of stock) 

         download the ASQUIRT02 manual  here                

  
asquirt02



Order now with PAYPAL:
(standard MIT configuration only, contact Rockfield Research for alternate configurations)




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DSQUIRT02
full-duplex  F/O isolated digital transceivers (32 channels, 5 kHz)

dsquirt02


    The DSQUIRT02 family faithfully reproduces 32 digital channels (16 each way, 32 tx, or 32 rx) across noise or voltage barriers with no galvanic connection in between.  Checksums and ID codes maintain the integrity of the signals, and DIP switch selectable addressing ensures that multi-unit installations cannot operate on the wrong fiber.  I/O levels compatible with Allen Bradley PLC I/O, other configurations possible.   Each channel is updated at 5 kHz, although the response time is somewhat slower due to 150 microsecond input filtering.

(Default configuration as developed for MIT fusion labs:  D-sub 44pin connectors, I/O levels compatible with Allen Bradley PLC I/O, with pinouts and signal levels matching #1771-IBN and #1771-OBN modules - 10-30V, active hi, opto-isolated, with each block of eight channels sharing isolated common/power.  Each output block of eight channels is internally fused.  Additional witness F/O output for debug monitoring and fuse status monitoring.)                                            Comes with AC adaptor, does not include fibers or mating connectors.

To make a communications link, you need two DSQUIRT02-IO units (for 16 channels each way),
or one DSQUIRT02-II and one DSQUIRT02-OO (for 32 channels one-way).

         download the DSQUIRT02 manual  here      

Order now with PAYPAL
(standard MIT configurations only, contact Rockfield Research for alternate configurations)
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DSQUIRT02-IO
The "standard" DSQUIRT02 transceiver, with 16 channels of "copper to fiber", and 16 channels of "fiber to copper"

$475.00         plus shipping  (& sales tax in NV) 
(domestic shipments only, please) 
qty in stock 2/8/16:  4         (~8 weeks delivery if out of stock)



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DSQUIRT02-II
For high channel density one-way communications, use the DSQUIRT02-II paired with a DSQUIRT02-OO.  The DSQUIRT02-II has 32 channels of "copper to fiber"

$575.00         plus shipping  (& sales tax in NV) 
(domestic shipments only, please) 
qty in stock 2/8/16:  4         (~8 weeks delivery if out of stock)




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DSQUIRT02-OO
For high channel density one-way communications, use the DSQUIRT02-II paired with a DSQUIRT02-OO.  The DSQUIRT02-OO has 32 channels of "fiber to copper"

$575.00         plus shipping  (& sales tax in NV) 
(domestic shipments only, please) 
qty in stock 2/8/16:  5         (~8 weeks delivery if out of stock)




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