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

Models: EPM-4

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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

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

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.