DC-EM-02T-S-25

Overview

The Digi Connect EM DC-EM-02T-S-25 is a compact, secure embedded module based on the Digi NS7520 processor with an ARM7TDMI core running at 55 MHz. It provides two-port serial-to-Ethernet functionality via plug-and-play firmware or NET+OS development tools. The module features 4 MB NOR flash and 8 MB SDRAM, supporting IEEE 802.3 10/100Base-T wired connectivity. It includes two high-speed TTL serial interfaces (up to 230 Kbps), nine shared GPIO pins, and an SPI master interface. Designed for industrial environments, it operates between -40°C and +85°C.

Feature Summary

• Integrated 32-bit Digi NS7520 processor with ARM7TDMI core at 55 MHz
• Two-port serial-to-Ethernet capability with 10/100 Mbps auto-sensing MAC/PHY
• Dual UARTs supporting hardware/software flow control and up to 230 Kbps data rates
• 9 shared GPIO pins and SPI master mode support

Applications

• Industrial device server applications requiring reliable serial-to-network conversion
• Embedded systems needing secure IoT connectivity with WPA2/802.11i support
• Prototyping and evaluation of network-enabled products using Digi Integration Kits

Procurement Notes

Verify the specific suffix 'S-25' against official documentation to confirm pin header population and antenna configuration details. Ensure compatibility with required operating temperatures (-40°C to +85°C) and power supply constraints (3.3VDC, max 270 mA). Confirm regulatory approvals such as FCC Part 15 Class B and UL 60950-1 are valid for the target deployment region.

Selection Notes

Select this module for projects requiring drop-in integration of wired Ethernet connectivity without custom hardware design. Compare with the Digi Connect Wi-EM family if wireless 802.11b capabilities are needed, noting that both share the same form factor and pinout. Consider the NET+OS platform for custom software development or the plug-and-play firmware for rapid deployment.

Part Context

This component belongs to the Digi Connect EM family, designed for interchangeable use within a common platform architecture. It shares physical dimensions (1.935 in x 1.575 in x 0.670 in) and pin definitions with other modules in the series, facilitating seamless migration between wired and wireless variants while maintaining long-term product availability.

Replacement Considerations

Direct replacements within the same family include other Digi Connect EM variants with different memory configurations or connector populations. For wireless functionality, the Digi Connect Wi-EM series offers a pin-compatible alternative with integrated 802.11b WLAN.