Honeywell 51400700-100 (DHI Data High-Speed Channel Interface Card)
June 01, 2026

Honeywell 51400700-100 (DHI Data High-Speed Channel Interface Card)

Product Introduction 51400700-100 is a DHI (Data Hiway Interface) high-speed data channel interface card of Honeywell TDC 3000 system. It is a core communication gateway component of the TDC 3000 system, specifically designed to connect the Data Hiway (data high-speed channel) of TDC 3000 with the LCN (local control network), enabling data exchange between different network levels. It is a key component for cross-network data interaction in the TDC 3000 system.

Description

Model Explanation

51400700-100: Honeywell part number (without delimiter, i.e. 51400700100)

51400700 = DHI Data High-Speed Channel Interface Card Series

100 = Standard hardware version, Rev A firmware, industrial-grade temperature range

Component Type: DHI PWA (Data Hiway Interface Printed Wiring Assembly)

Adapter Rack: TDC 3000 Five-slot / Dual-node Rack (paired with 51400712-100 Power Supply) Technical Specifications

Processor: Specialized communication processor, with a main frequency of 10 MHz

Network protocols: Data Hiway (1 Mbps), LCN (5 Mbps)

Data cache: RAM 64 KB (data buffer)

Power supply: 5 VDC (backplane power supply, ±5%), power consumption ≤ 18 W

Operating temperature: 0°C ~ +60°C (environment of the cabinet)

Storage temperature: -40°C ~ +85°C

Humidity: 5% ~ 95% RH (no condensation)

Size: Standard 19-inch card (3U height)

Weight: 0.68 kg

Certifications: CE, UL, CSA

Interfaces and Configuration

Backplane interface: Compatible with 51400712-100 five-slot cabinet power backplane, gold finger connection

Network interfaces:

Data Hiway: Coaxial BNC interface (75Ω)

LCN: Coaxial BNC interface (75Ω)

Status indicators: PWR (power), RUN (operation), DH ACT (Data Hiway communication), LCN ACT (LCN communication), FAULT (fault) LED

Installation method: Hot-swappable (supports no-down-time replacement)

Compatibility: Compatible with the entire series of LCN network nodes and Data Hiway devices of TDC 300 Core function

Network Protocol Conversion: Achieve dual network protocol conversion between Data Hiway (1 Mbps) and LCN (5 Mbps), complete the parsing, packaging, and forwarding of data frames between networks of different rates, and ensure stable data transmission across networks.

High-speed Data Forwarding: As a gateway, it forwards data, control instructions, alarm information, and historical data in a high-speed manner. It supports bidirectional communication between up to 64 Data Hiway nodes and the LCN network. The data forwarding delay is less than 10 ms.

Network Isolation and Redundancy: Physically isolate the Data Hiway and LCN networks to prevent the spread of single network failures; support dual-machine hot standby (1:1 redundancy), with a switching time of less than 50 ms, ensuring communication continuity.

Fault Diagnosis and Reporting: Real-time monitoring of the communication status of the dual networks, card hardware, and data links. When a fault occurs, trigger system alarms and record fault codes. Support online diagnosis and maintenance.

System Interconnection Expansion: Support network interconnection between TDC 3000 and other Honeywell systems (such as Experion PKS), enabling data sharing and centralized monitoring between systems. Applicable scenarios

System: Honeywell TDC 3000, TPS, Experion PKS (compatible with LCN network)

Equipment: TDC 3000 five-slot / dual-node cabinet, Data Hiway equipment (such as basic controller BC, multi-functional controller MC), LCN network nodes (such as GUS operation station, HPM controller)

Industry: Petrochemicals, thermal power, nuclear power, metallurgy, cement, glass, pharmaceuticals

Application: Network interconnection of TDC 3000 system, data exchange between Data Hiway and LCN, replacement of communication cards in old systems, redundant communication configuration of the system, cross-network data sharing and centralized monitoring


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