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ballester - 13:05 Thursday 10 April 2025 (66547) Print this report
instrumented baffle WiFi test installation
We've (IFAE team) arrived at 11:45 at WE tower.
Vincenzo explained us that the tower was already cleaned and Flavio installed the cabling and vessel inside the tower
The connector had to be changed to the right one (air side view) as it is the good one

The AP was disconnected, probably due to disconnecting and connecting the militar connector
We checked all the micro USB cables available to see which one fit most securely without wobbling, to avoid unintentional power disconnections. We’ve decided not to change the cable as all of them where more or less equal
If the AP is not listed or does not work we will have to ask somebody to come and check the power

We’ve verified that both the internal and external Olimex POE boards were listed at the mini pc as /dev/ttyUSB0 and /dev/ttyUSB1
David has executed the RS485 test successfully (absence of errors)

We’ve changed the firmware on the boards to execute the WiFi test. It run successfully. We got a bandwidth of 42Mbps from inside to outside

From the inside board we can list the EGO and Guest Wifi SSIDs, probably because the tower is open. We will have to check once the tower is closed.

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dattilo, gherardini - 15:42 Friday 11 April 2025 (66552) Print this report
Attached some pictures of the in-vacuum cabling and the hermetic vessel.
The cables consist of twisted pairs made with AWG 24 QML copper wire.
The DN150CF flange with 2 MIL32 feedthroughs has been mounted on a port located on the West side of the tower, bottom-South corner.
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montanari, spinicelli - 17:03 Thursday 24 April 2025 (66620) Print this report

In order to understand the origin of the new noises seen on hrec after recovery, this afternoon at around 14:10 UTC, we unplugged the power PDU of the instrumented Baffle WiFi (see figures).

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