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All about Power over Ethernet (PoE) – ClearOne Tech Note

The purpose of this tech note (full link below) is to describe information related to Power over Ethernet (PoE) and ClearOne’s PoE supported CONVERGE Pro 2 (CP2) P-Link Peripheral Pro Audio products.

 

Power over Ethernet or PoE refers to passing of electric power through twisted-pair Ethernet cable, allowing  a single Ethernet cable to provide both a data connection and electric power to devices; giving new flexibility to installations.

 

Powered Devices (PD’s) that can operate within the power specification of PoE can be located almost anywhere, without the need for electrical outlets. Power Sourcing Equipment (PSE) all provide DC power on the Ethernet cable (such as PoE Ethernet Network Switches, and PoE Power Injectors).

 

PoE has been standardized by IEEE 802.3 standards, and has two types:

  • PoE: This is covered by the 802.3af standard and provides up to 15.4 Watts of DC power.
  • PoE+ or PoE Plus: This is covered by the 802.at standard and provides up to 25.5 Watts of DC Power (over two pairs).

 

ClearOne’s CONVERGE® Pro 2 peripheral connections are supported by PoE, with the ability to daisy-chain multiple peripherals with mixers through our P-LINK connections, sharing resources and power.

 

 

Two standard PoE modes exist – A, and B, which differ as:

 

Mode A:

  • Delivers power on the data pairs of 100-BASE-TX or 10-BASE-T cable.
  • That is, pins 1 & 2 form one side of the DC supply and pins 3 & 6 form the other side.
  • These are the same two pairs used for data transmission. That is, mixed data and power.
  • This is similar to the phantom power technique used for powering microphones.
  • In summary, this mode A uses only 2 pairs for data and power.

 

Mode B:

  • Delivers power on the spare pairs of 100-BASE-TX or 10-BASE-T cable.
  • That is, pins 4 & 5 form one side of the DC supply and pins 7 & 8 provide the return.
  • These are spare pairs and these spare pairs are used for power. That is, no mix of data and power.
  • In summary, this mode B uses 4 pairs for data and power.

 

The table below shows ClearOne products that support PoE (i.e., PD’s), PoE modes supported for powering from PSE, PoE Power injectors (i.e., PSE’s) that we offer and the number of PD devices that can be supported.

 

S. No.

ClearOne PD’s

Supported PoE Modes

ClearOne PSE’s

PoE Power Injector
(910-001-004)

PoE+ Power Injector
(910-3200-202)

Product

Part Number

Mode A

Mode B

Mode A or
Mode B

Support
One PD

Support
Daisy-Chain
up to 3 PD’s

Support
One PD

Support
Daisy-Chain
up to 3 PD’s

1

Beamforming Mic Array 1 (White)

910-001-003

YES

YES

YES

YES

NO

YES

NO

2

Beamforming Mic Array 1 (Black)

910-001-003-B

YES

YES

YES

YES

NO

YES

NO

3

Beamforming Mic Array 2 (White)

910-3200-201

NO

YES

NO

YES

NO

YES

YES

4

Beamforming Mic Array 2 (Black)

910-3200-201-B

NO

YES

NO

YES

NO

YES

YES

5

CONVERGE Pro 2 GPIO Expander

910-3200-301

NO

YES

NO

YES

NO

YES

YES

6

CONVERGE Pro 2 USB Expander

910-3200-302

NO

YES

NO

YES

NO

YES

YES

7

DIALOG 20 Wireless Receiver

910-6100-201

NO

YES

NO

YES

NO

YES

YES

8

Touch Panel Controller *

910-3200-501

YES

YES

YES

YES

NO

YES

NO

* This must  be the last device in the P-link chain when daisy-chained with other PD’s.

 

For the full, downloadable tech note, please click here.

 

 

 

 

 

 

Clearone to open India Product Service Center for Regional Support


 

Contact

Brent Johnson
Sr. Corporate Marketing Manager
801-303-3577
brent.johnson@clearone.com
 
 

Clearone to open India Product Service Center for Regional Support

New regional product service center to be located in Bangalore

 
 

SALT LAKE CITY, UTAH — June 09, 2014

 
ClearOne (NASDAQ: CLRO) today announced the June 20, 2014, opening of its India Authorized Support Center in partnership with Bangalore-based Midas Digital Services Pvt. Ltd. The new support center will serve the Indian market with efficient, timely, and economical product service options.
 
“We look forward to providing this enhanced level of service for ClearOne clients in India,” said Babu Prasad Dorairaj, Director of Midas Digital Services Pvt. Ltd. “Partners and customers here rely on ClearOne’s industry reputation and product quality. This expanded support initiative further solidifies that trust.”
 
Midas will initially focus on service for ClearOne’s industry-leading audio products: CONVERGE®, INTERACT®, MAX®, CHAT® and the Beamforming Microphone Array. These audio products, whether in warranty or out of warranty, will be eligible for service. To initiate a product service request, partners and customers should first contact ClearOne’s Tech Support team with product information, and Tech Support will issue an RMA (Return Merchandise Authorization). Partners and customers can then direct their products to Midas Digital Services and will be able to work directly with the regional support center for any further logistics and completion of services.
 
To request a product RMA number, contact ClearOne Tech Support at:
techsupportapac@clearone.com
+86 108 446 3262, + 86 186 1274 9641
 
To direct a product for service, contact Midas Digital Services at:
indiaproductservice@clearone.com
+91 819 796 6677
 
For all other sales support, contact the local India sales team at:
global@clearone.com
+91 993 078 2195
 

About ClearOne

 
ClearOne is a global company that designs, develops and sells conferencing, collaboration, streaming and digital signage solutions for voice and visual communications. The performance and simplicity of its advanced comprehensive solutions offer unprecedented levels of functionality, reliability and scalability. More information about the company can be found at www.clearone.com.
 

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Please find the printable release in our Investor Relations area at http://investors.clearone.com.