LAVA Computer MFG. Inc. STS-RBM Installation Manual –A03
2 Vulcan St. Toronto, ON Tel: +1 416 674-5942 www.lavalink.com 6 of 8
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Power Up Behavior
With power applied the green Charge-Only LED will flash on and off for the first 2 to 3 seconds and then
the yellow SimulCharge LED goes active.
If the Type 1 jumper is open, the green Charge-Only LED flashes with a pulse-pulse-
pause pattern for the first 2 to 3 seconds.
If the Type 1 jumper is closed, the green Charge-Only LED flashes with a continuous
on-off pattern for the first 2 to 3 seconds.
The Android Notification line at the top of the screen has an “LTM” displayed while the LTM Service is
active. When the Notification information is examined; the message “LTM Handler, LAVA Tablet
Manager is operational” is present. If the LTM notification is not present, the LTM Service is not running.
Attach the STS-RBM to an Ethernet network via the RJ45 connector. The STS-RBM Network Link and
USB Activity LEDs start to pulse to confirm an active network connection. In the event the network
connection fails to work, verify the Ethernet interface is enabled in the tablet setup.
The LAVA Battery Information application can be used to observe the battery charge status. This
application can also be used to log the battery charging status to a file.
The LTM.ini can be replaced at any point to alter the configuration. Changing the “user-debug=0” and
“Ethernet-debug=0” settings can enable several useful debug messages. The “STS-RBM Reference Manual”
contains a detailed description of the INI file.
If the STS-RBM is placed into the Charge-Only mode using the Charge Mode button, the LTM Service
shuts down and all USB devices are disconnected.
Additional Comments
With LTM running, the battery level is maintained between the upper and lower thresholds defined in the
LTM.INI file. The LAVA Battery Information (LBI) application can be used to monitor the battery charge
status. When the charging state is active, the battery charging current can be viewed with LBI to ensure the
tablet is charging. The LBI application is used to log the battery charging status to a file, which allows the
behavior over several hours to be monitored.
The tablet charging icon cannot be relied upon to indicate if the battery is charging - only by checking the
battery charge current, or observing the charge level for a period of time, is a valid check. The tablet draws
less current from the external power supply during SimulCharge mode by design. If the tablet is not
charging and a 5V USB supply is being used, verify the voltage reaching the STS-RBM is at least 5 volts.
In some cases reducing the tablet screen brightness, by 10 to 20 percent, allows the battery to charge.
The LTM.ini can be replaced at any point to alter the configuration. Changing the “user-debug=0” and
“Ethernet-debug=0” settings can enable several useful debug messages. The “STS-RBM Reference
Manual” contains a detailed description of the INI file.
Removing STS-RBM power shuts down the LTM application, and all USB accessories are disconnected.
When using “board-type=2” or “board-type=3”, removing power from an STS-RBM does
not result in a shutdown of the STS-RBM board if Battery Modulation is in the discharge
state. The STS-RBM continues to function in this state until the lower charging threshold is
reached as defined by “btty-lower-threshold”.
