General
TTL port	1
Data bits	5, 6, 7, 8
Stop bits	1, 1.5, 2
Magnetic isolation	1.5 kV
Digital output	1
Input voltage	3.3 VDC
MTBF	5.515.294 Stunden (Telcordia SR332)
Auto MDI/MDI-X

The MiiNePort E1-H-T from Moxa is an ultracompact, industrial-grade Embedded Serial Device Server, specifically developed for serial communication on a TTL basis. The module enables the integration of Ethernet connectivity into existing TTL-based devices with minimal space requirements and low power consumption. With dimensions of 33.9 x 16.25 x 13.5 mm, it is ideally suited for OEM applications where limited space is a central requirement. The device is based on the MiiNe SoC (2nd generation) with a 32-bit ARM core and integrates 2 MB Flash and 4 MB SDRAM, enabling efficient data processing and storage.

Applications

The MiiNePort E1-H-T is used in industrial environments where TTL-based devices such as sensors, controls, or measuring instruments need to be connected to a network via Ethernet. The combination of compact design and industrial robustness makes the module particularly suitable for integration into machines, automation systems, or embedded systems. The operating temperature range of -40 to 85 °C ensures functionality even under extreme environmental conditions, for example in outdoor installations or in climatically demanding production environments.

Functions and Features in Detail

The device features a TTL port with signals TxD, RxD, RTS, CTS, RST, and GND. The baud rate can be set between 50 bps and 921.6 kbps, with configurable data bits (5, 6, 7, 8), stop bits (1, 1.5, 2), and parity types (None, Even, Odd, Space, Mark). Flow control can be set to None, RTS/CTS, or XON/XOFF. This flexibility allows adaptation to different serial devices. Additionally, the module offers a digital input, a digital output, and a software-configurable DIO, facilitating integration into control logic.

Technology Explained Simply

The MiiNePort E1-H-T connects serial TTL signals with Ethernet networks. The device is connected to a network via the RJ45 port, with the 10/100BaseT(X) interface and Auto MDI/MDI-X enabling flexible cabling. The 1.5 kV magnetic isolation protects the device from electrical interference and voltage surges. Moxa’s NetEZ technology supports functions such as EXTrigger (reset via button press), SCM (Serial Command Mode), AutoCFG (automatic mass configuration), and MCSC (multi-channel communication), simplifying configuration and maintenance. Operating modes include Real COM, TCP Server/Client, UDP, and RFC2217, allowing the module to be used in various network environments.

Compatibility and Accessories

Software support includes Windows Real COM (all common Windows versions), Linux TTY drivers (kernel 2.4 to 5.x), and support for Unix derivatives such as SCO, QNX, and Solaris. Additionally, an Android API is available from version 3.1.x. This broad compatibility enables use in various operating system environments. The module is designed for use in OEM systems and can be directly integrated into existing devices.

Mounting and Installation

The module is designed as a drop-in module, enabling easy integration into existing devices. Power supply is via 3.3 VDC with a current draw of 195 mA. Installation requires no special tools, as the module is simply inserted into the corresponding socket. Configuration is performed via NetEZ technology, with functions such as AutoCFG simplifying the setup of multiple devices simultaneously.

Operational Advantages

The MiiNePort E1-H-T is characterised by its low profile, low power consumption, and high operational reliability. The MTBF is 5,515,294 hours (Telcordia SR332), indicating high reliability. Certifications according to EN 55032/35, FCC Part 15B Class B, as well as EMS and environmental tests according to IEC 61000 series and IEC 60068 series, guarantee safe and interference-free operation in industrial environments. The 5-year manufacturer’s warranty underscores the product’s quality.