PowerWalker NMC card misidentified as Eaton

Ok, firmware version seems as appropriate.
Improved in r12490.

If it helps identifying between PowerWalker products and Eaton-relabeled products I found that:

• Eaton ships only with 3.0.x.x firmware and has not provided firmware upgrades for several years
• PowerWalker uses firmware 3.1.x.x and has provided updates more recently

At this point, any firmware version 3.1.x.x can not be Eaton UPS.

same card can used on both UPSes (Eaton and PowerWalker)

In any case, management card brand is PowerWalker and manufacturer is BlueWalker GmbH

I could not find snmpwalk dumps for this card when it is connected to Eaton branded UPS for detailed comparison, but I would personally prefer to keep the reported vendor the same as the original MIB file provider. 

Attached latest vendor MIB

They have not updated the changelog in MIB header, but they fixed incorrectly labeled bypass power sensor:

493c493

< 		DESCRIPTION		"The measured input real power in watts."

---

> 		DESCRIPTION		"The measured bypass input real power in watts." 

Attached discovery and poller debug logs

Not really related to this issue, but:

Just noticed that the NMC Card vendor PowerWalker has made minor description/documentation revision to the latest EPPC UPS MIB.

Change is one-liner so EPPC MIB shipped with Observium is mostly ok but bypass voltages are mislabeled as input/output voltages.

I can open separate issue for this minor MIB update if required.

Already did rediscovery when vendor and sensor value issues occurred (did it again just now to be sure). Running r12458 right now.

All of the sensors provided by the UPS are correctly discovered and polled, but the polling fails to log/graph the UPS output voltage (@ .1.3.6.1.4.1.935.10.1.1.2.18.1.3)

Meanwhile output voltage continues to be reported by the SNMP correctly:

# snmpwalk -c public -v2c <redacted fqdn for the UPS> .1.3.6.1.4.1.935.10.1.1.2.18.1.3

iso.3.6.1.4.1.935.10.1.1.2.18.1.3.1 = INTEGER: 2297 

I can provide you SNMP dumps, debug output logs etc. and test code changes if required.

Please make discovery debug as Bot written:

./discovery.php -d -h <device>

It's should be correctly detect sensors (after rediscovery)..
And vendor really not possible detect correctly, while same card can used on both UPSes (Eaton and PowerWalker)

Also some change near r12393 caused us to lose all input readings from:

Output (Phase 1)    EPPC-MIB::upsESystemOutputVoltage.1

Attached snmpwalk output (using instructed snmpwalk parameters) as powerwalker-nmc.snmpwalk

This dump is from Powerwalker NMC Card (https://powerwalker.com/product/10120517/)  attached to PowerWalker VFI 10000 TCP 3/1 BI (https://powerwalker.com/product/10120161/)