LAVA Computer MFG Inc. eSynC Product Family - Reference Manual – C03
2 Vulcan St. Toronto, ON
Tel: +1 416 674-5942
www.lavalink.com
Canada, M9W 1L2
Toll Free (US & Canada): 800 241-5282
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Power-over-Ethernet Support
Power over Ethernet (PoE) is a standard for passing electrical power through a network cable
along with the data. The eSynC PoE-capable products always support an Ethernet adapter for
wired network communications.
The eSynC products with PoE resolve the problem of getting power to a mobile device and
peripherals. The PoE specification allows the powered device to be up to 328 feet (100 meters)
from the Network Switch or PoE Injector.
Deploying network cabling with PoE support can be significantly cheaper than installing
dedicated power lines through a facility.
The Ethernet RJ-45 provides the input power to the eSynC product. These eSynC products
require a suitable Ethernet Switch with PoE support. Deploying network cabling with PoE
support can be significantly cheaper than installing dedicated power lines through a facility.
The eSynC PoE provides 10.4 watts of power for the device, the eSynC, and attached USB
accessories. The 10.4-watt limit allows the unit to be treated as a PoE Class 0 device by a PoE
switch.
The eSynC PoE Power Supply is capable of supplying 13.5 watts. However, this requires the
Network Switch to supply more power to the Ethernet cable than is permitted for Class 0
devices. The eSynC
does not
prevent the attached devices from attempting to draw more than
10.4 watts. The accompanying device and USB accessories must be designed to work within the
design limits.
The system designer must budget for the charging requirements of the device and the power
required by USB accessories. The eSynC products
do not
provide diode protection between the
module and the peripheral ports.
The eSynC PoE products do not function if power is not available from the PoE-Ethernet
interface or the “Aux. Power Adapter” input. The eSynC products are not intended to draw
power from the tablet or mobile phone. The “Aux. Power Adapter” input can only be used if
power is not being provided over the Ethernet cable. The “Aux. Power Adapter” input is
intended only for initial testing of an eSynC module. The “Aux. Power Adapter” input is
described in a separate section of this document.
The PoE models include the eSynC-PE and eSynC-P2UE products.
