Our tech support team at VoIP Supply offers great pre- and post-sales support plus provisioning, consultations, configuration, and installation help. We get a lot of VoIP hardware and software questions and would like to share the solutions with everyone.
In previous Mom’s calling Q&A series, we have discussed: How to Set Pin Number for a Route on a Grandstream System. Today, we have more new real questions and answers from VoIP users just like you.
Q: Could you please tell me what the max Wattage consumption is for both Polycom VVX310 and VVX410 please? I need to connect approximately 50 phones up via PoE. Do you have a switch recommendations to accommodate this scenario?
A: VVX 310 PoE is either 24 v or 48 v and VVX410 PoE is 48v.
0.25a=12watts x 50 nodes = 600 watts Each port on the switch should be 48 v. I would suggest the Cisco 300 which can support up to 52 ports.
Q: Do you know if all of the ports are PoE and what that max wattage is?
A: Yes, you can get two flavors, PoE (48 port) 2 Combo mini-GBIC or non-PoE (48 port) 2 combo mini-GBIC.
Power consumption with PoE (74 w PoE – Supported = 48 ports). Each switch port of 48v = 12 watts. 12 x 48 PoE = 576w. So 576w would be for only 48 phones. I stand corrected below.
110V = 873.05W = Total
220V = 843.57W = Total (worst case wattage if needed)
Come back for more VoIP questions and answers next time! If you have VoIP questions to ask us, please submit a technical support ticket or contact our VoIP experts today at (866) 582-8591.
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On your site you answer the question of, 'What is the Max Wattage Consumption for Polycom VVX310 and VVX410?' and below you state;
'0.15a=12watts x 50 nodes = 600 watts...' , however, a 48volt power supply at 0.15amps is 7.2watts to be 12watts the ampage would have to be 0.25.
You may want to correct this for other, future readers.
Thank you for your correction!
A typical POE port cannot power a Polycom VVX 411 with a color expansion module. What power supply do you have that is 25 watts or more? Suppose you have 2 expansion modules, what power supply is available to power the phone and the 2 expansion modules?
Hi John! Thanks for your comment!
Now, in testing the 25W power supply will power on all 3 expansion modules. The expansions only need 2.9W and the phone is about 4.5-5W. The 25W PS should be enough to power on the phone and this has been tested. PoE uses 48v, which is plenty!
Here is the Power Supply Consumption Matrix for your reference: https://support.polycom.com/global/documents/support/setup_maintenance/products/voice/Power_Consumption_and_Management.pdf
If you have more questions, please feel free to submit a ticket here https://voipsupply.zendesk.com/hc/en-us/requests/new, our tech support team will be happy to help you. Thank you!
Evy