Author Topic: ZTE Communication Board  (Read 102 times)

Offline bri3gel

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ZTE Communication Board
« on: September 09, 2019, 11:54:53 AM »
Hi and sorry to interrupt,

I am actually a FPGA guy and not located in the RF-field, so hopefully you guys could still give me some hints.
I came across a board that could be quite interesting for me, because it has a good amount of usable FPGA chips. The only problem is, that there is little to no information about this board, which I am told to be a ZTE 5G communication board. Moreover this board has a power connector, which looks similar to the ones used in DELL psu's. Does anybody know the pinout, so I could try to power this board up ?

Any hints  are welcome =)

Kind Regards

Offline Mads Barnkob

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Re: ZTE Communication Board
« Reply #1 on: September 09, 2019, 02:57:56 PM »
I am not a RF or base station /cell site specialist, but I have taken apart and done teardown videos on about 10-15 3G/4G systems.

Normal supply voltage for this radio gear is 48VDC, some times it is grounded and other times its floating, not connected to the chassis ground. Your best bet is to reverse-engineer the tracks back from the local power supplies at the FPGAs back to the connector. If you are unlucky, then you need some enable signals buried somewhere in the small pins in the middle.

Generally I have found that there is very little information available on ICs inside these systems, a lot of it seems to be special product numbers or whole series of ICs that has no reference to any publically known components.
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics

Offline bri3gel

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Re: ZTE Communication Board
« Reply #2 on: September 09, 2019, 03:34:23 PM »
hi thanks for the reply. I guess I will try to start with a voltage of 12V and see, if something boots up .

I found this website : https://fccid.io/Q78-ZXMBW-E9200, but unfortunately not the same board.

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Re: ZTE Communication Board
« Reply #2 on: September 09, 2019, 03:34:23 PM »

 


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