LAVA Computer MFG STS Product Family User Manual – A01
2 Vulcan St. Toronto, ON Tel: +1 416 674-5942 www.lavalink.com
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Canada, M9W 1L2 Fax: +1 416 674-8262 Toll Free (US & Canada): 800 241-5282
The USB-A receptacles only function when the STS** device is powered. The STS** devices have a
dedicated power input and are not intended to draw power from the tablet.
A USB Hub can be attached to the STS** USB receptacles to extend the number of accessories supported
by the system. Additional USB accessories and the related cabling require a power budget be developed for
the system. Power loss in the cables result in lower voltages at each device.
Using self-powered USB Hubs may be required in some systems, to offload the main supply responsible
for the tablet.
The STS-E and STS-PE have no USB-A receptacles.
“ETHERNET” Port and Indicators
The ETHERNET Port is present on the STS-E, STS-2UE, and the STS-2UE+.
The ETHERNET Port is an IEEE 802.3 10BASE-T / 100BASE-TX compatible Fast Ethernet interface.
The Ethernet port accepts a standard RJ45 connector.
The wired Ethernet option allows the enclosure developer to design for non-WiFi environments. Systems
using STS-** products with Ethernet, generally disable the tablet WiFi interface.
The USB Ethernet Controller implemented in the STS** Product has standard support built into the
Samsung Tablets noted in the compatibility list. Applications developed for the tablet using any network
operations are automatically routed by the tablet operating system to the active network interface.
The ETHERNET Port only functions when the STS** device is powered. The STS** devices have a
dedicated power input and are not intended to draw power from the tablet.
The ETHERNET Port has two status indicators labeled “USB Activity” and “Link/Activity’.
The USB Activity is a yellow indicator. The USB Activity is solid yellow when the STS** is powered and
connected to the tablet. The USB Activity pulses when there is traffic between the tablet and the STS**.
The Link/Activity is a green indicator. The Link/Activity is solid green when the Ethernet Link has been
established. The Link/Activity pulses when there is network traffic through the Ethernet interface. The
Link/Activity indicator remains off when the tablet is not attached.
Both indicators remain off when the STS** power has not been applied.
The tablet setup and status for the ETHERNET port is located in the Connections > More networks >
Ethernet menu. The Ethernet menu can only be entered when a powered Ethernet adapter is present. The
standard tablet options permit the use of static address assignments or dynamic address assignments via
DHCP. This menu reports if the Ethernet adapter is active as well as serving as the enable.
When using DHCP the tablet attempts to fetch the addressing information form a DHCP server. If the
addressing information is not located within the timeout period, the tablet makes no further attempts. The
user must manually retrigger the Ethernet interface to start the DHCP process. The retrigger is a simple
matter of pressing the Ethernet “box” again in the “More networks > Ethernet” menu.
When the user disabled the Ethernet adapter via the Connections > More networks > Ethernet menu, the
adapter remains disabled until enabled again by the user.
