LAVA Computer MFG STS Product Family User Manual – A01
2 Vulcan St. Toronto, ON Tel: +1 416 674-5942 www.lavalink.com
16 of 20
Canada, M9W 1L2 Fax: +1 416 674-8262 Toll Free (US & Canada): 800 241-5282
Power over Ethernet (PoE)
Power over Ethernet (Poe) is a standard for passing electrical power through an Ethernet cable along with
the network data. The STS** PoE devices always support an Ethernet adapter for wired network
communications.
A number of STS** Products provide PoE support. The STS** Products with PoE can resolve the problem
of getting power to the tablet and peripherals. Deploying network cabling with PoE support can be
significantly cheaper than installing dedicated power lines through a facility.
The STS** PoE Power Supply provides 13.5 watts of power for the tablet, the STS**, and attached USB
accessories. The module power is provided through the Ethernet RJ-45 port. These modules require a
suitable Ethernet switch with PoE support.
The system designer must budget for the charging requirements of the tablet and the power required by
USB accessories. The STS** products do not provide any diode protection between the module and the
peripheral ports.
The STS** PoE devices do not function if power is not available from the PoE-ETHERNET interface or
the Aux 5V Input. The STS** devices are not intended to draw power from the tablet. The Aux 5V Input
can only be used if power is not being provided over the Ethernet cable. The Aux 5V Input is intended only
for initial testing of a STS** module. The Aux 5V Input is described in a separate section of this document.
The PoE models include the STS-PE, STS-P2UE, and STS-P2UE+ products.
