K5-302

Electro-Opto Readout of a K5 Module

Ashley Greenall
04/11/02


K5-302 Outer Module using Liverpool Support Card

A scheme has been developed to check the feasibility of reading out a K5 module using the Opto Route (DORIC/VDC) remotely. The module is configured to be elecrically 'remote' from the readout support card, the interconnection is made via a 5m screened Ethernet cable (for the BPM encoded CLK0/COM0 and Link0/Link1 data streams). The input signals for the DORIC have been set so that they are switching at 60uA, the DORIC is specified to expect input signals whose switching range is 60uA - 600uA (for a Logic 1).

Opto-Results

As a comparison the tests are repeated but this time using the Redundant data route with the readout adjacent to the module (no remote interconnection).

Redundant-Results

Conclusion

K5-501 Outer Module using Liverpool Support Card

Same configuration as above. Testing using both the Redundant and Electro-Opto data routes:
 

Redundant Data Results

Electro-Opto Data Results

Again the Electro-Opto perfromance is not as good when compared to using the Redundant Data link but this problem is understood (jitter on the decoded clock from the DORIC) and thus not unexpected.

Conclusion


Ashley Greenall 22/10/02