mrlooneytoon
New Member
Hello Everyone
I did a search for this but couldn't really find anything specific.
A little background:
I have a PCB with 4 Teledyne SPDT High Frequency RF coax relays (click here for data sheet PDF).
The outputs of the relay are connected to various RF test equipment like a GPS tester.
The relay switching from closed to open is controlled by I2C ports and serial bus interface from a PC. So I can basically control the switches with my computer by sending highs, lows through the serial cable to the relay PCB
My dilemma:
The switches tend to get very hot after 2-3 days of continuous use. This causes the relays to burn out or become very unreliable at high temps and causes all kinds of problems in my entire system.
My question:
How can I test these switches on the PCB? I do not have the luxury of replacing them. An ideal solution would be to build an external circuit, connect it to the relay's using coax cable and do an automated test where it checks each relay if it is switching open/close. The final result can simply be a green LED that says everything is OK. The test system is going to be used by others less tech savvy, not just by me, that's why the result should be simple. Green or red LED.
Any help on this would be much appreciated!
I did a search for this but couldn't really find anything specific.
A little background:
I have a PCB with 4 Teledyne SPDT High Frequency RF coax relays (click here for data sheet PDF).
The outputs of the relay are connected to various RF test equipment like a GPS tester.
The relay switching from closed to open is controlled by I2C ports and serial bus interface from a PC. So I can basically control the switches with my computer by sending highs, lows through the serial cable to the relay PCB
My dilemma:
The switches tend to get very hot after 2-3 days of continuous use. This causes the relays to burn out or become very unreliable at high temps and causes all kinds of problems in my entire system.
My question:
How can I test these switches on the PCB? I do not have the luxury of replacing them. An ideal solution would be to build an external circuit, connect it to the relay's using coax cable and do an automated test where it checks each relay if it is switching open/close. The final result can simply be a green LED that says everything is OK. The test system is going to be used by others less tech savvy, not just by me, that's why the result should be simple. Green or red LED.
Any help on this would be much appreciated!
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