Lynx EPM-4 manual Battery Backed Static RAM, Serial Ports

Page 35

Battery Backed Static RAM

Battery Backed Static RAM

The EPM-4 can be ordered with an optional 2 MB of Battery Backed Static RAM (BBSRAM). This BBSRAM is powered by the boards RTC battery when main power is turned off. Jumper V1, which is used to clear CMOS RAM, does not affect the BBSRAM.

The BBSRAM is located at the absolute address of (0x08000000) in one continuous 2 MB block.

Serial Ports

The EPM-4 features two on-board 16550 based serial channels located at standard PC I/O addresses. COM1 and COM2 are RS-232 (115.2K baud) serial ports.

COM3 and COM4 can be operated in RS-422 or RS-485 modes. Two additional non-standard baud rates are also available (programmable in the normal baud rate registers), up to 460K baud.

Interrupt assignment for each COM port is handled in CMOS Setup, and each port can be independently enabled or disabled.

All four serial ports are protected against ESD damage. This protection exceeds 15KV human body model.

COM PORT CONFIGURATION

There are no configuration jumpers for COM1 and COM2 because it only operates in RS-232 mode.

Jumper V2 is used to configure COM3 and COM4 for RS-422/485 operation. See page 23 for jumper configuration details.

COM3 AND COM4 RS-485 MODE LINE DRIVER CONTROL

The TxD+/TxD– differential line driver can be turned on and off by manipulating the DTR handshaking line.

The following code example shows how to turn the line driver for COM3 on and off:

mov	dx,03ECh	; Point to COM3 Modem Control register
in	al,dx	; Fetch existing value
or	al,01h	; Clear bit D0
out	dx,al	; Turn DTR on (enables line driver)
in	al,dx	; Fetch existing value
and	al,0FEh	; Set bit D0
out	dx,al	; Turn DTR off (disables line driver)

EPM-4 Reference Manual

Reference – 27

Image 35

Contents Reference Manual EPM-4 Support Product Release NotesReference Manual Model EPM-4Page Table of Contents Appendix a CBL/CBR-5009 Appendix B References Description IntroductionCompatibility Technical SpecificationsEPM-4 Block Diagram RoHS-Compliant Version EPM-4 Support Website Technical SupportPage Overview Configuration / OperationInitial Configuration and Setup Basic Cmos Configuration Cmos Setup / Boot ProcedureConsole Redirection Drive Assignment Order Cmos Setup / IDE ConfigurationBoot Order IDE Drive GeometryDefault Disabled Cmos Setup / Advanced ConfigurationBios Ext Default 0E0hDefault 133 MHz Default EnabledDefault IRQ7 Default SPPDefault IRQ11 Default IRQ4Default IRQ3 Save Cmos as custom defaults Using Custom Cmos DefaultsPage Reference Physical DimensionsReference EPM-4 Reference Manual Hardware Assembly B10 External ConnectorsMating Transition Cable ‡Pin 1 Location Connector Function Connector Functions and Interface CablesJumper Block Locations Jumper Block LocationsJumper Summary System Bios SelectorCBL/CBR-1008 Power SupplyMain Power Connector Pinout Signal Name Description Reorder Part No EPM-4 Revision Battery TypeReal Time Clock System RAMSerial Ports Battery Backed Static RAMIDE Hard Drive / CompactFlash / CD-ROM Interface IDE Hard Drive Connector Pinout SignalPin Name Signal Name Function CBR-5009 Pin Connector Signal Utility Connector J7Utility Connector Pinout CBR-5009 Signal KEYBOARD/MOUSE Interface Parallel / Floppy Port Centronics Floppy Signal Pin DirectionYellow LED Speed RJ45 Ethernet ConnectorEthernet Interface Green LED Link / ActivityWatchdog Timer PC/104-PlusModules Expansion BusPC/104 Modules Start End Address Comment Memory and I/O MapMemory Map On-Board I/O Devices MAPComponents Group Interrupt ConfigurationSCR READ/WRITE 00E0h Special Control RegisterBit Mnemonic Description Revision Indicator RegisterRevind Read only 00E1h Mpcr READ/WRITE 00E3H Map and Paging Control RegisterPage Appendix a CBL/CBR-5009 a CBL/CBR-5009 ConnectorsCBL/CBR-5009 Schematic CBL/CBR-5009 Dimensions and MountingAppendix B References

EPM-4 specifications

The Lynx EPM-4 is a cutting-edge electronic monitoring device designed for a wide range of applications including transportation, logistics, and outdoor activities. With its sleek design and robust capabilities, the EPM-4 provides users with advanced tracking and monitoring features that enhance efficiency and safety.

One of the standout features of the Lynx EPM-4 is its high-precision GPS tracking technology. This allows for real-time location monitoring, ensuring that users can keep tabs on their assets or personnel at all times. The GPS functionality is complemented by cellular connectivity, enabling seamless communication and data transmission even in remote areas. Whether used in urban settings or off-the-grid locations, the EPM-4 maintains reliability and performance.

Another key characteristic of the Lynx EPM-4 is its user-friendly interface. The device is equipped with a bright LED display that provides instant access to essential information, including speed, distance traveled, and battery status. Its intuitive navigation system ensures that even users with minimal technical expertise can operate the device effectively.

Durability is a fundamental aspect of the Lynx EPM-4 design. Constructed to withstand harsh environmental conditions, it features IP67-rated water and dust resistance. This ensures that the device can perform flawlessly in diverse weather conditions, making it suitable for outdoor enthusiasts and professionals alike.

The EPM-4 also incorporates advanced battery technology, allowing for extended usage time on a single charge. This is particularly advantageous for long-haul trips or field operations where charging facilities may be unavailable. Additionally, the device supports various power management modes that optimize battery life based on usage patterns.

Connectivity options are another highlight of the Lynx EPM-4. It supports Bluetooth and Wi-Fi, enabling quick data transfer to smartphones, tablets, or computers for further analysis. Users can easily share information with team members or stakeholders, enhancing collaboration and decision-making processes.

Lastly, the Lynx EPM-4 features customizable settings, allowing users to tailor the device’s functionality to meet their specific needs. Whether it’s setting geofences, receiving alerts for unusual activity, or customizing data logging intervals, the EPM-4 ensures a personalized experience that maximizes utility.

In conclusion, the Lynx EPM-4 stands out as a premier electronic monitoring solution, combining GPS precision, robust durability, extended battery life, and versatile connectivity. With its advanced features and user-friendly design, it serves a vital role in managing logistics, ensuring safety, and enhancing operational efficiency across various industries.