OEM for Keysight N8900 Series DC Power Supply?

[magicsmoke]

Anyone know who the OEM for Keysight's N8900 autoranging system DC power supplies is?  Or is it a Keysight design.  I am pretty sure that the N5700 and N8700 series DC power supplies are designed and made by TDK Lambda but the N8900 series doesn't look like there Genesys line.

[EEVblog]

Looks like they might make it themselves.

[Lukas]

I downloaded the firmware update and pulled it apart:

Code: [Select]

$binwalk N89XX-A_00_06.upd

DECIMAL       HEXADECIMAL     DESCRIPTION
--------------------------------------------------------------------------------
8             0x8             XML document, version: "1.0"
1321          0x529           gzip compressed data, fastest compression, from FAT filesystem (MS-DOS, OS/2, NT), NULL date: Thu Jan  1 01:00:00 1970
17138939      0x10584FB       Zlib compressed data, compressed, uncompressed size >= 95509
The gzip one looks interesting, extract this one:

Code: [Select]

$dd if=N89XX-A_00_06.upd bs=1 skip=1321 of=asdf.gz
$file asdf
asdf: Windows Embedded CE binary image
Umm, Windows CE, very likely to be Agi^h^hKeysight, let's confirm that:

Code: [Select]

strings asdf | grep Agile
AgilentLan488Server32.dll
AgilentPalCaps.dll
AgilentPalIO.dll
AgilentPalSStorage.dll
AgilentLxiUnmanaged.dll
AgilentSStorageUnmanaged.dll
AgilentSysMngmntUnmanaged.dll
...

So this one is absolutely original Keysight.

[bitburger]

It's a hybrid, really. The power processing circuitry an OEM from Elektro-Automatik. Keysight then makes their own front panel, controller, and communications interface.