Honeywell 51303932-226 (51303932226) Product Detailed Description

Product Model: 51303932-226 (51303932226)

Brand: Honeywell

Product Category: MU-TSDM02 SDI FTA Serial Device Interface Terminal Assembly (Serial Device Interface Field Termination Assembly)

Applicable Systems: Honeywell Experion PKS C300 / TPS / UCN Distributed Control System

I. Product Overview

51303932-226 is a manual / automatic dual-mode, non-CE certified version of Honeywell's SDI serial interface FTA series. It is functionally similar to - 202 (supports RS-232/RS-485, hardware manual / automatic switch), with the main difference being no CE certification, some early production batches, and suitable for non-EU regions or industrial environments without mandatory certification requirements.

II. Core Specification Parameters

1. Interface Characteristics

Interface Type: Serial Device Interface FTA

Communication Protocol: RS-232 (EIA-232) / RS-485

Channels: 1 channel

Mode: Manual / Automatic Dual Mode (Hardware Switching)

Baud Rate: 300 ~ 115200 bps

Data Bits: 5/6/7/8

Parity: None / Odd / Even

Stop Bit: 1/2

2. Electrical Parameters

Isolation Voltage: 1500 V AC (Channel - System)

Input Impedance: RS-232: 3 kΩ; RS-485: 120 Ω

Drive Capability: RS-485: 32 nodes

Operating Power Supply: 24 V DC (Backplane Power Supply)

Power Consumption: ≤ 2.5 W

Protection: Overvoltage, Overcurrent, Reverse Connection, Surge, ESD

3. Environmental Parameters

Operating Temperature: -40°C ~ +75°C (Wide Temperature)

Storage Temperature: -55°C ~ +85°C

Humidity: 5% ~ 95% RH (Non-condensing)

Protection: PCB Three-Protect Coating

Vibration / Impact: IEC 60068

EMC: FCC Part 15 Class A

4. Physical Characteristics

Size: Standard DCS Card (150×100×25 mm)

Weight: Approximately 0.3 kg

Installation: Hot-swappable, UCN/C300 Standard Rack

Interface: Spring Terminal + Backplane Bus

Status Indicators: PWR, RUN, TX/RX, FAULT LED

5. Certification

Certification: FCC Class A, UL

CE Certification: ❌ None (Core Difference from - 202/-203)

Compliance: RoHS (Some Batch)

III. Functional Features

1. Serial Communication

Protocol Compatibility: Modbus RTU, ASCII, DF1, Third-party Serial Protocol

Manual / Automatic Switching:

Manual Mode: Hardware Switch Control Communication Status

Automatic Mode: System Software Remote Control

Transmission Mode: RS-232 Full Duplex; RS-485 Half Duplex

Transparent Transmission: No Protocol Conversion, Straight Data Transmission

2. Isolation and Protection

High Isolation: 1500 V AC, Suppress Ground Potential Difference

Multi-level Protection: TVS Surge, PTC Overcurrent, Reverse Connection Protection

Impedance Matching: Built-in 120 Ω Terminal Resistor

3. System Compatibility Compatible systems: Experion PKS C300, TPS, UCN

Replaceability: Direct replacement of 51303932-202/203/227/428/476

Redundancy: Non-redundant single-channel design

IV. Comparison with key models of the same series Table

Characteristic 51303932-226 51303932-202 51303932-203

Control mode Manual / Automatic Manual / Automatic Pure Automatic

CE certification ❌ None ✅ Yes ✅ Yes

Isolation voltage 1500 V AC 1500 V AC 1500 V AC

Wide temperature range ✅ -40~75°C ✅ -40~75°C ✅ -40~75°C

Applicable regions Non-EU, no CE requirements Global (including EU) Global (including EU)

Hardware switch ✅ Yes ✅ Yes ❌ No

V. Typical applications

Intelligent instruments (transmitters, analyzers) Modbus access

Frequency converter, PLC and DCS serial communication

Remote I/O, barcode / weighing equipment data acquisition

Long-distance RS-485 device networking (maximum 1200 m)

Non-EU region factories, no CE mandatory requirements scenarios

VI. Product status

Type: DCS serial interface FTA (spare parts)

Production status:停产 (legacy spare parts)

Supply： Original inventory， refurbished， second-hand spare parts

Replacement： 51303932-202 (CE version) or new C300 module

VII. Model analysis (51303932-226)

513： Honeywell DCS prefix

03932： SDI serial interface FTA series

-226： Manual / Automatic， RS-232/485， wide temperature range， no CE