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I have a 501 with traditional power and a 301 with PoE. I rightfully assumed that the traditional power from the 501 would work on the 301. How do I get the PoE to work? Do I use the Polycom PoE cable in addition to whatever PoE injection method I use? I have a Cisco PoE injector that works on my Cisco AP350 and my 7960. No combination of this injector, the Polycom cable, and the phone result in

I've tried to use a Cisco power injector to supply power over Ethernet to a GXP2000 phone without success. Although when I plugged these phone to a PoE capable Cisco Switch it worked without a problem! Knowing that all these three equipments implement IEEE 802.3af protocol, why doesn't it work with the Cisco power injector? Anyone also had this problem before? Thanks, Ricardo Carvalho.

I'm looking for 24 or 48 port IEEE802.3af POE injector. Any recommendation? -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070720/3886655b/attachment.htm

Hello, I am trying to set up some Cisco 7940G phones with the 3com POE injectors. I have the 3CNJPSE24 power injector, this is the rackmountable 24 port injector. My question is does anyone know how to serial console into these things? I have tried just about every cable setup I can think of and baud rates but I can't seem to get anything out of it. I want to check to see what certain

I am looking to replace all of the old "Bell" (POTS) phones in my home and office with IP phones. As you can imagine I don't have a huge budget to work with but I want phones that will provide acceptable voice quality and durability. There are basically three categories as I see it 1. satellite phones (low cost, low function) 2. primary domestic phone (good quality, POE capable,

I know this is on the wiki, I just want to confirm so I don't blow up my cisco phones. I've got several cisco 7940's all running using cisco power cubes. However, my boss wants me to switch just a few over to poe, but doesn't want to fork out the dough for a nice cisco poe switch, or anybody else's poe switch for that matter. So my question is, what is the '99.999%

There is a way to ensure traffic prioritisation...but it can work out a little expensive. 1. Use 3Com 4400 PWR as your switch. 2. Use 3Com NJ200/NJ220 (US) or NJ205/NJ225 (EU) POE Multiport switches 3. Use 3CNJVOIP-CPOD POE --> 7960 POE/Data splitters for power and data connections to the phone. The 4400 Delivers Power to the NJ2xx switches, these switches have 4 ports which can be

When I bought two Polycom 501 SIP phones, I naively thought they were Power-over-Ethernet (IEEE 802.3af) because they were "powered over ethernet." Silly me. Polycom must have some odd voltage or funny way of injecting the power, because the POE switch I bought for them (Netgear F@510P) won't power them, though if I use the Polycom-supplied AC adapter and ethernet power

I'm trying to spec out hardware for a new office, and I'd like to include power over Ethernet as an option. I've seen a handful of PoE injectors around $1000 for 24 ports and a couple switches up around $2500 for 24 ports. Are there any cheaper options, short of buying a boatload of 1-port injectors off of ebay? I don't really need more then 24 ports of PoE out of 48 total

Has anyone gotten the Lucent / Orinoco injectors (AE-1, AE-6, AE-12) to work with the Cisco 79* series phones? I'm not sure if the are the statndard POE or not.... -Darren

Kelly Byrd <kbyrd at memcpy.com> writes: > With USB-C ports and cables, there are a ton of profiles, I don't know what > the new Pi's support, but likely something like 3A @ 5V, 9V, or 12V over > USB-C Up to the RPI4, I was pretty sure there wasn't PD, just 5V and it drew what it drew, and you hoped that the supply was big enough. It seems the RPI5 will use PD if

Based on several threads I've read on this list, I assume that it would be handy to supply POE (power over ethernet) in an environment without having to purchase POE switches (assumed expensive) and abandon one's existing (familiar/custom/not-yet-expensed/etc.) switches/hubs. Assume I have a non-POE switch with 24 RJ-45 (ethernet) ports. I design a 1U box that can be mounted just

Hi, Why Aastra phones use more electricity, i.e. 48VDC whereas other phones use much less, e.g. Grandstream and Linksys both use only 5VDC. I first thought it was because of PoE, but the ones with 5VDC also run fine on PoE. What is the difference in power consumption then? -- Zeeshan A Zakaria -------------- next part -------------- An HTML attachment was scrubbed... URL:

PoE, or 802.3af, uses a device detection routine to determine if the connected device needs power. The process, in greatly simplified terms, is as follows: 1. Detect link state 2. Send a pulse of a known frequency and intensity over the TX/RX pairs 3. Listen for reflection. 3a. No reflection- provide power 3b. Reflection- no power Devices that comply with 802.3af have filters designed

>But currently, I only have one ethernet jack per office. Routing >another 60 or so ports would add a very substantial expense in both >cabling and backbone expansion (what category ethernet is required, >BTW?). Most decent phones have an ethernet passthrough (2 port) so you can plug in your PC. As long as your LAN is decent (Cat5 100baseT switched) the overhead using VoIP is

FWIW, a few lessons learned: * Different USB-A sized ports (even if marked USB-3.2) did not prove a stable source, with Pi5 occasionally turning off or rebooting. Sort of behaved well for days, but as soon as I added load like package installs or NUT builds, it did not survive 5 minutes... * Might be the MoBo turning off or cycling the port due to "overload"?.. * Tried the

Ok, not exactly an Asterisk problem, but... I picked up some SNOM 200 phones because SNOM's have been recommended for use with Asterisk and they have line buttons that can subscribe to presence. However, they don't appear to power up when connected to my Negear FS108P, which is an 802.3af Power-over-ethernet capable hub. I am pretty sure these are the SNOM 200b, in that the ethernet

Follow-up: * Powering the Raspberry Pi5 from an USB-C port wired on the motherboard was much more promising, it survived over 8 hours building NUT in a loop (in a tmpfs). And in the morning I found it turned off (red light on the Pi). * Per https://stackoverflow.com/questions/4702216/controlling-a-usb-power-supply-on-off-with-linux it seems not possible to programmatically truly power-cycle USB

3com have some goods POE kit and some very nice managed wall jacks that supply POE and are fully managed. Here's an auction that the seller just closed:- http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=40990&item=5708757277&rd=1&ssPageName=WDVW Last time I spoke to him he had 5 boxes of 20 units and was willing to sell them at around $575 with a bit of arm twisting.

I guess I should scratch the idea about fan sockets as the power source: they are rated typically at 0.2A each, so fan headers should be expected 1A max (3A in some vendors/models), well under the 5A that the RPi5 wants. Jim On Sat, Sep 28, 2024 at 11:52?AM Jim Klimov <jimklimov+nut at gmail.com> wrote: > Follow-up: > > * Powering the Raspberry Pi5 from an USB-C port wired on