On 03/10/2024 16:49, [email protected] wrote:

Upon power up, the Octoclock should show all green LEDs on to the left. After several seconds, the “External” LED should turn off, and the PPS should begin to blink once per second. Instead ,this Octoclock simply goes frozen in a state in which the “Internal” “External” and “Status” LEDs remain stuck on. Nothing occurs after an hour of waiting. The stuck LEDs are shown in the attached image.

An oscilloscope was used to test the unit, and no signals are produced by any output. No PPS signals are generated, no 10MHz are seen from any of the front panel SMAs.

How should I proceed with troubleshooting this Octoclock?


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The CDA-2990 is a clock *DISTRIBUTION* module.  It has no built-in GPSDO unit unless you have populated one.


https://www.ettus.com/all-products/octoclock/

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