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Abstract
The eSynC family of products (formally known as LAVASynC+) permits the charging of select
Samsung mobile devices while simultaneously interacting with USB 2.0 accessories.
The eSynC products share the core set of features present in all nSynC products, as well as
providing "extended" features such as battery modulation, screen brightness management, and
improved network operation. All devices supported use the USB-C interface.
Contents
Introduction ..................................................................................................................................... 3
System Requirements...................................................................................................................... 4
Product Features.............................................................................................................................. 6
USB Host Operation with Simultaneous Charging .................................................................... 6
USB 2.0 Ports for User Accessories ........................................................................................... 7
LAVA Tablet Manager (LTM) Application ............................................................................... 7
Battery Modulation ..................................................................................................................... 8
Wired Network Operation......................................................................................................... 10
Network Recovery Operation ................................................................................................... 11
Screen Brightness Management ................................................................................................ 12
Power Options ........................................................................................................................... 13
Power-over-Ethernet Support ................................................................................................... 14
System Watchdog Handling ..................................................................................................... 15
Samsung Knox Configure ......................................................................................................... 16
Product Versions ....................................................................................................................... 16
Connection Descriptions ............................................................................................................... 17
USB-C "Mobile Device" Data & Power Output ...................................................................... 17
USB-C "Power Adapter" Input ................................................................................................. 17
"Aux. Power Adapter" input ..................................................................................................... 18
USB-A receptacles .................................................................................................................... 19
Status LEDs .............................................................................................................................. 20
"Ethernet" RJ45 Port and Indicators ......................................................................................... 21
"PoE-Ethernet" RJ45 Port and Indicators ................................................................................. 22
Internal Jumpers ........................................................................................................................ 22
Using USB Serial Ports ................................................................................................................. 23
Modules: eSynC-1U-OEM and eSynC-BM-OEM ....................................................................... 24
LAVA Tablet Manager (LTM) Configuration File ...................................................................... 26
Commands and Parameters ....................................................................................................... 27
Diagnostic Log File................................................................................................................... 31
Sample LTM_CFG.txt Configuration File ............................................................................... 32
eSynC Product Family
Reference Manual
April 5, 2022
Revision C03
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Table of Contents
Related Manuals for Lava eSynC-E
Summary of Contents for Lava eSynC-E
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Page 1: Table Of Contents
“PoE-Ethernet” RJ45 Port and Indicators ................. 22 Internal Jumpers ........................22 Using USB Serial Ports ......................... 23 Modules: eSynC-1U-OEM and eSynC-BM-OEM ............... 24 LAVA Tablet Manager (LTM) Configuration File ..............26 Commands and Parameters ....................... 27 Diagnostic Log File........................31 Sample LTM_CFG.txt Configuration File ................32... - Page 2 Product Family - Reference Manual – C03 LAVA Computer MFG Inc. The “LAVA Device Info” Utility ....................33 The “LTM Setup” Utility ......................34 Dimensions ........................... 35 Technical Support ......................... 36 2 Vulcan St. Toronto, ON Tel: +1 416 674-5942 www.lavalink.com...
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Page 3: Introduction
The eSynC features use a combination of hardware and software. The LAVA Tablet Manager (i.e. LTM) application must be installed to support an eSynC product. The eSynC products use features specific to a group of Samsung mobile devices. -
Page 4: System Requirements
12-volt or 24-volt battery. LAVA only has access to models from the Canadian market and some U.S. models for internal testing. A tablet or mobile phone integrator must perform a verification of the device model and build targeted for their application. - Page 5 Product Family - Reference Manual – C03 LAVA Computer MFG Inc. Note: LTM v4.** and v5.** are exactly the same. The only difference is LTM v4.** must be side loaded, while v5.** is available in the Google Play Store.
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Page 6: Product Features
Up to 5 USB-2.0 receptacles The eSynC extended features rely on the LAVA product working in unison with the LAVA Tablet Manager application. Installation of the LTM application is mandatory before using an eSynC product. USB Host Operation with Simultaneous Charging The primary feature of all eSynC and nSynC products is to allow the charging of select Samsung mobile devices while interacting with USB accessories. -
Page 7: Usb 2.0 Ports For User Accessories
During normal operation, the application launches automatically when it detects the LAVA hardware and is intended to run quietly in the background. If the application is accidentally shut down, it is woken up within 7 minutes by the recovery timeouts that are built into the LAVA hardware. -
Page 8: Battery Modulation
Setting the correct Product Family and Protection Type is critical for LAVA Battery Modulation to work. The LTM configuration help will identify which option to use for a given mobile device. The default configuration parameters... - Page 9 Information section of LTM, or through the optional LAVA Device Info utility. Note: The LAVA-Device-Info utility and is a useful addition for LTM 3 users. However, it is redundant for users of LTM v4.** and v5.** as its features are now built into the app.
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Page 10: Wired Network Operation
Product Family - Reference Manual – C03 LAVA Computer MFG Inc. Wired Network Operation Many eSynC products provide a 10/100 Fast Ethernet wired interface. This feature relies on standard support built into the tablet or mobile phone. A wired networking solution is more reliable than Wi-Fi and has greater security. -
Page 11: Network Recovery Operation
Product Family - Reference Manual – C03 LAVA Computer MFG Inc. Network Recovery Operation The eSynC products and the LTM application help a tablet or mobile phone recover from failures to establish a network connection when using a wired network connection. The typical failure is due to the inability to establish a network address from a DHCP server. -
Page 12: Screen Brightness Management
Product Family - Reference Manual – C03 LAVA Computer MFG Inc. Screen Brightness Management The LTM application has a configurable option to manage the screen brightness. The tablet or mobile phone screen is a significant power consumer and heat generator within the device. If the screen is too bright, the device may not be able to charge the battery. -
Page 13: Power Options
The preferred voltage is 5.1 to 5.25 volts. The input voltage must never exceed 5.25 volts. Exceeding the maximum input voltage violates LAVA’s Manufacturer Warranty. The eSynC-PE and eSynC-P2UE support Power over Ethernet (PoE) and therefore can operate using power provided over the network cable. -
Page 14: Power-Over-Ethernet Support
Product Family - Reference Manual – C03 LAVA Computer MFG Inc. 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. -
Page 15: System Watchdog Handling
The standard device behavior can result in the LAVA Tablet Manager being shut down after a period of time. The LAVA product has several safeguards to ensure LTM will continue to function. -
Page 16: Samsung Knox Configure
The “btty-protection-type” option in the LTM configuration file determines which battery modulation scheme is to be used. Note: The LAVA-Device-Info utility and is a useful addition for LTM 3 users. However, it is redundant for users of LTM v4.** and v5.** as its features are now built into the app. -
Page 17: Connection Descriptions
Product Family - Reference Manual – C03 LAVA Computer MFG Inc. Connection Descriptions USB-C “Mobile Device” Data & Power Output The “Mobile Device” receptacle is a standard USB-C receptacle, which is used for the connection between the eSynC and a tablet or mobile phone. This connection provides a power and data connection to the device. -
Page 18: Aux. Power Adapter" Input
4.75. A power budget must be carefully evaluated for the system if reliable operation is to be ensured. The models with the Power Adapter input include the eSynC-1U, eSynC-1U-OEM, eSynC-BM- OEM, eSynC-3U, eSynC-E, and eSynC-2UE. “Aux. Power Adapter” input The “Aux. Power Adapter” input is a Micro USB-B receptacle on eSynC PoE products and a USB-C receptacle on certain products with voltage converters. -
Page 19: Barrel Jack "9-36 Vdc In
12-volt, 2.5-ampere supply is acceptable. The length and gauge of wire used to connect the power supply to the LAVA product results is a loss of voltage and therefore power reaching the LAVA product. This additional loss must also be factored into the power budget. -
Page 20: Status Leds
On solid A mobile device has been attached and detected. No mobile device attached. The LAVA unit is in the bootloader. When the J15 jumper is installed, the unit remains in the bootloader after power up. All “extended” Rapid blink features are suspended while the bootloader is active. -
Page 21: Ethernet" Rj45 Port And Indicators
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 Ethernet port is present on the eSynC-E and eSynC-2UE. The Ethernet port only functions when the eSynC product is powered. The eSynC products have a dedicated power input and are not intended to draw power from the tablet or mobile phone. -
Page 22: Poe-Ethernet" Rj45 Port And Indicators
Product Family - Reference Manual – C03 LAVA Computer MFG Inc. 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 >... -
Page 23: Using Usb Serial Ports
There are several USB UART Adapters available on the market compatible with Android. The LAVA Tablet Manager v4.** and v5.** have special support for single and multiple user- supplied serial ports. If your system is using a USB serial port, please contact LAVA for additional information. -
Page 24: Modules: Esync-1U-Oem And Esync-Bm-Oem
Figure 3: eSynC-1U-OEM Figure 4: eSynC-BM-OEM The LAVA Tablet Manager application must be installed on the mobile device (tablet or smartphone). When combined with the LTM application, both products support the extended features of Battery Modulation and Screen Brightness Management. - Page 25 When the mobile device is charging, up to 1.3 amperes of current is offered to the device. The power consumption of the LAVA board is negligible. The power supply for an eSynC-1U-OEM should have a capacity of at least 1.8 amperes to allow for power required by an attached USB accessory.
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Page 26: Lava Tablet Manager (Ltm) Configuration File
LAVA Tablet Manager (LTM) Configuration File Overview The LAVA Tablet Manager is configured by the file LTM_CFG.txt located in the “Internal Storage\Android\data\com.lava.tabletmanager7\files\” folder of the mobile device. The LTM setup is typically managed using the configuration manager built into LTM. When the Configuration Console is active, the “GO TO CONFIGURATION”... -
Page 27: Commands And Parameters
1 or 2 based on the mobile device being used. The selection used must match the mobile device capabilities. Mobile devices may only implement a sub-set of the USB-C PD specification, which requires LAVA test each model to verify the level of compatibility. - Page 28 A value of 1 results in LTM updating the timeouts. The default is 1. recovery-timeouts-enabled=x The command determines if the recovery timeouts in the LAVA product are enabled. The value is written to be LAVA product only if update-timeouts-automatically is 1. A value of 0 disables the timeouts.
- Page 29 Product Family - Reference Manual – C03 LAVA Computer MFG Inc. permit-ltm-icon=x This command determines if the LTM Notification Icon is visible or transparent. A 1 enables the LTM icon. This is the default. A 0 disables the icon, which is made transparent.
- Page 30 Product Family - Reference Manual – C03 LAVA Computer MFG Inc. ethernet-debug=x This command enables a set of Toast based messages suitable for the user. The messages report the status of the Ethernet interface. The permitted range is 0 to 3. The default is 1.
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Page 31: Diagnostic Log File
The file format is UTF-8 (simple ASCII). The file can be read on a PC using any text editor. The log file is located in the “Internal Storage\Android\data\com.lava.tabletmanager7\files\” folder. The log file name is LTM_***_LOG.txt. The *** portion of the file is the device serial number. -
Page 32: Sample Ltm_Cfg.txt Configuration File
Report all UARTs dropped (internal use) (product family * 10) + protection-type Sample LTM_CFG.txt Configuration File ; Generated by LAVA Tablet Manager (LTM) v4.00 ; When product-family=1 is used, board-type defines the protection type. ; When product-family=2 is used, btty-protection-type defines the protection type. -
Page 33: The "Lava Device Info" Utility
USB devices are briefly disconnected and reconnected every 7 minutes in an attempt to force LTM to run. As of late 2018, all LAVA devices are shipped with the timeouts disabled as a manufacturing default. Disabling the Timeouts with this utility is useful when LTM is not being used and it is not convenient to install the 2-pin MODE jumper. -
Page 34: The "Ltm Setup" Utility
Product Family - Reference Manual – C03 LAVA Computer MFG Inc. The “LTM Setup” Utility The “LTM Setup” utility was a standalone Android application used to manage the configuration file for earlier versions of LTM. The LTM v1.**, v2.**, and v3.** had no display component built in. -
Page 35: Dimensions
Product Family - Reference Manual – C03 LAVA Computer MFG Inc. Dimensions 38.2 mm (+/- 0.5 mm) 38.2 mm (+/- 0.5 mm) 43.0 mm (+/- 1.0 mm) 43.0 mm (+/- 1.0 mm) 83.0 mm (+/- 0.5 mm) 127.0 mm (+/- 0.5 mm) 97.0 mm (+/- 0.5 mm) -
Page 36: Technical Support
Product Family - Reference Manual – C03 LAVA Computer MFG Inc. Technical Support LAVA Technical support is open from 9:00 am to 5:00 pm Monday through Friday (EST). Telephone: +1 416 674-5942 Toll-Free (US and Canada): 1 800 241-5282 Internet: www.lavalink.com/helpdesk...
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