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Documentation and technical resources.

Product datasheets, instruction manuals, hardware connection details, and firmware downloads for MELD systems.

PRODUCT DOCUMENTATION

Technical downloads.

Specifications and reference documents for selecting, connecting, and operating MELD equipment.

PRODUCT SPECIFICATIONS

Technical datasheets

Product information, interfaces, specifications, and connector details. Select a datasheet to review its two pages.

Cover of MELD-2100 Product Datasheet Revision B
MELD-2100 REV B · NOV 2026

MELD-2100 Data Recorder & Interface

ControlLogix PLC data, ARINC-429 receiver configurations, Ethernet services, electrical interfaces, and hardware details.

2 pagesPDF2.8 MB
Cover of MELD-4000 Product Datasheet Revision A
MELD-4000 REV A · NOV 2026

MELD-4000 Six-Port Ethernet Switch

10/100BASE-TX switching, HD26 and DE9 interfaces, DC power, port assignments, and Rev A design specifications.

2 pagesPDF0.9 MB

Consult each document's revision and qualification notes. Installation or regulatory approvals are not implied by these datasheets.

Cover of the MELD-2100 Product Manual Revision A
MELD-2100 / INSTRUCTION MANUAL

MELD-2100 Product Manual

ARINC-429 / ControlLogix PLC Data Recorder & Ethernet Interface

Operating guide covering the available MELD-2100 configurations, DA-15 electrical connections, power and startup, the universal breakout harness, onboard recording, Wi-Fi HMI access, and troubleshooting.

REVISION A ISSUED NOV 5, 2026 LENGTH 10 PAGES FORMAT PDF · 1.1 MB

Technical support

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FIRMWARE RELEASES

MELD-2501 Rev B firmware.

Processor-specific files for the MELD-2100 / MELD-2501 platform. Confirm the hardware revision and installation method before you update the firmware.

STM32v1.0.63

STM32 Rev B A/B

STM32_RevB_AB_v1_0_63.bin

0.75 MBBIN firmware image

SHA-256: 7daf3400e89ae56b…94cc2c444a

Download STM32 firmware
ESP32v1.0.25

ESP32 Wi-Fi

MELD2501_esp32_1_0_25.meldpkg

0.98 MBMELD update package

SHA-256: 938999c3ebf15488…c682c3a56a

Download ESP32 firmware
Before installing

Firmware upgrades are maintenance actions. Confirm hardware compatibility and the installed versions, make a backup of data and configuration, and follow the supported update procedure. These are separate processor files, not a combined installer. The STM32 download is a raw binary. The ESP32 download is a MELD package. The website only provides the files and does not connect to or update equipment.

Download SHA-256 checksums

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