📌 Honeywell 51305896‑200 – NIM Modem Board (Industrial Communication / Network Interface Module)

General

• Model: 51305896‑200
• Product Type: Network Interface Module (NIM) Modem / Communication Board
• Manufacturer: Honeywell (OEM industrial automation spare part)
• Condition: New / Original (from industrial automation suppliers)

🛠️ Electrical & Performance Specifications

• Operating Voltage: Typically 24 VDC (some sources also list 12 VDC options depending on configuration)
  • Data Rate / Speed:
    • Up to ~115.2 kbps in many configurations
    • Some legacy references list ~2400 bps (vendor‑specific)
• Communication Protocols Supported:
  • RS‑232
  • RS‑485
  • (in some implementations) Modbus RTU/ASCII, RSB/RCI – depending on software/firmware
• Connector Type: DB‑9 (serial) in typical versions

🌡️ Environmental & Physical

• Operating Temperature Range: ~–20 °C to +70 °C (industrial use)
• Storage Temperature: Vendor listings vary; some list up to –40 °C to +105 °C (depending on board)
• Dimensions: Approx. 85 mm × 55 mm × 25 mm (compact board size from one supplier)
• Weight: ~0.1 kg to ~0.34 kg depending on housing/variant
• Protection Rating: IP20 (typical industrial card / board)

📡 Compatibility & Use

• Designed for integration in Honeywell distributed control systems (DCS), such as UCN networks, PLC systems, and legacy control networks.
• Can be used as a communication interface in remote telemetry, serial bridging, or modem communication configurations in process automation.