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Author Topic: Strange POE behaviour with Phase 0/1 i2000 phones and ERS4500  (Read 3555 times)

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Offline pat2012

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Strange POE behaviour with Phase 0/1 i2000 phones and ERS4500
« on: November 22, 2013, 10:10:19 AM »
Hi folks.

This is a strange one.  We had some Phase 0/1 phones connected to an ES460 switch using the Universal Splitters.  They worked fine.  Recently we changed the ES460's to ERS4548GT-PWR.  That's when the Phase 0/1 phones stopped working.  Now logically using the universal splitters should work... right?

Here's where it gets weird.  The same phone works with an ERS3500 PWR+ switch (with the splitter of course).

The ERS4548 already has the PD detection set to 802.3af_and_legacy.

We've thought about this for awhile, scratching our heads and can't seem to figure out why these phones are not working with the ERS4548GT.

The ERS4548GT is running release 5.6.3.

Any ideas?  This would really suck if these phones can't work with the ERS4548GT as we have quite a few of these phones in our environment and we're looking to change out our switches.

Thanks.


Offline Michael McNamara

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Re: Strange POE behaviour with Phase 0/1 i2000 phones and ERS4500
« Reply #1 on: November 25, 2013, 09:58:42 AM »
I'm confused... your are using an inline PoE splitter with a PoE switch? Why?

If I recall correctly the original Nortel Phase 1 i200x series wasn't standard 802.3af, and I believe the voltage has changed over the years although that would only matter if you are using power bricks.
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Offline pat2012

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Re: Strange POE behaviour with Phase 0/1 i2000 phones and ERS4500
« Reply #2 on: November 25, 2013, 11:50:56 AM »
These are older phones that are not PoE "aware".  They worked fine with ES460's, 470's and the ERS3510 but not the ERS4548GT.

Offline pat2012

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Re: Strange POE behaviour with Phase 0/1 i2000 phones and ERS4500
« Reply #3 on: December 13, 2013, 02:15:59 PM »
Figured out what the issue was.  When the switch was upgraded to Rel. 5.6.3, the PoE firmware wasn't upgraded.  Once that was done, the problem was solved.

Offline ThisAgain

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Re: Strange POE behaviour with Phase 0/1 i2000 phones and ERS4500
« Reply #4 on: February 19, 2014, 04:16:06 PM »
Figured out what the issue was.  When the switch was upgraded to Rel. 5.6.3, the PoE firmware wasn't upgraded.  Once that was done, the problem was solved.

How did you update the PoE firmware separately? Is that updated by the diagnostic package?

Offline pat2012

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Re: Strange POE behaviour with Phase 0/1 i2000 phones and ERS4500
« Reply #5 on: February 19, 2014, 06:18:35 PM »
Hi ThisAgain.

The PoE firmware is upgraded separately from the diagnostic.  The command is:

4550T-PWR> download usb poe_module_image <poe image name>.

(Of course you can use TFTP just like with any other image download).

For release 5.6.3 the possible images are:

PoE Firmware PoE Firmware for ERS4500 (4526T-PWR,4550T-PWR, 4524GTPWR,4526GTX-PWR,4548GT-PWR with ‘Nortel’ logo) --> 4500_PoE_400.img

PoE Firmware for ERS4500-PWR (4526TPWR,4550T-PWR,4524GT-PWR,4526GTX-PWR,4548GT-PWR HW with ‘Avaya’ logo) --> 4500_PoE_400b15.img

PoE+ Firmware for 4526T-PWR+, 4550TPWR+,4826GTS-PWR+, 4850GTS-PWR+ --> 4000_PoEplus_410B4.bin

Hope this helps.