Honeywell 51303932-277 (51303932277) Product Details

Product Model: 51303932-277 (51303932277)

Brand: Honeywell

Product Category: MU-TSDM02 SDI FTA Universal Serial Device Interface Terminal Component

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

I. Product Overview

51303932-277 is a universal serial interface module in the Honeywell SDI FTA series, belonging to the MU-TSDM02 model code. It is equipped with manual/automatic dual mode (with a hardware switch) and CE certification. It supports the standard RS-485/RS-422 communication protocol and can connect various industrial serial devices (such as manual/automatic stations, general instruments, PLCs, frequency converters, etc.) to the DCS system, suitable for global industrial environments (including the EU region).

II. Core Specification Parameters

1. Interface Characteristics

Interface Type: SDI Serial Device Interface FTA

Communication Protocol: EIA-485 (RS-485) / EIA-422 (RS-422)

Channel Number: 1 Channel

Control Mode: Manual/Automatic Dual Mode (Hardware Switching)

Baud Rate: 300 ~ 115200 bps

Transmission Mode: Half-Duplex (RS-485) / Full-Duplex (RS-422)

Communication Distance: Up to 300 meters (1000 feet)

Drive Capacity: RS-485: Supports 32 Nodes

2. Electrical Parameters

Isolation Voltage: 1500 V AC (Channel - System Isolation)

Input Impedance: RS-485: 120 Ω (Built-in Terminal Resistor)

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

Power Consumption: ≤ 2.5 W

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

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-Defense Coating (Anti-Water, Anti-Salt Fog, Anti-Mold)

Vibration / Impact: Compliant with IEC 60068 Standard

EMC: FCC Part 15 Class A, CE Certification

4. Physical Characteristics

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

Weight: Approximately 0.3 kg

Installation: Hot Swap, Compatible with UCN/C300/APM/HPM Standard Rack

Interface: Front 5-pin Spring-Type Terminal + Backplane Bus Interface

Status Indicators: PWR (Power), RUN (Operation), TX/RX (Transmit/Receive), FAULT (Fault) LED Indicators

5. Certification

Certification: CE, FCC Class A, UL

Compliance: Compliant with RoHS Standard

III. Functional Characteristics

1. Universal Serial Communication

Universal Compatibility: Supports all standard RS-485/RS-422 devices, non-specific customization

Dual Mode Control: Hardware Switch can quickly switch between Manual (Local) and Automatic (DCS Remote) modes

Transparent Transmission: No Protocol Conversion, Data Direct Through

Long-Distance Stability: Reliable Communication at 300 meters, Built-in 120Ω Terminal Resistor

2. Isolation and Protection

High Electrical Isolation: 1500 V AC Isolation, Suppresses Ground Potential Difference Interference

Multi-Level Protection Circuit: TVS Surge Suppression, PTC Overcurrent Protection, Reverse Connection Protection

Industrial Grade Reliability: Wide Temperature, Three-Defense Coating, Adapts to Harsh Conditions

3. System Compatibility

Fully Compatible: Experion PKS C300, TPS, UCN, APM, HPM Systems

Direct Replacement: Can be seamlessly replaced with 51303932-227 (Same Function, CE Version)

Non-Redundant Design: Single Channel Standard Configuration

IV. Comparison with Key Models in the Same Series Table

Characteristics 51303932-277 51303932-227 51303932-226 51303932-276

Model code MU-TSDM02 MU-TSDM02 MU-TSDT02 MU-TSDT12

Control mode Manual / Automatic Manual / Automatic Manual / Automatic Pure Automatic

Hardware switch ✅ Present ✅ Present ✅ Present ❌ Absent

Interface type RS-485/422 RS-232/485 RS-232/485 RS-232/485

Special adapter Universal Universal Toledo 8142 Toledo 8142

CE certification ✅ Present ✅ Present ❌ Absent ✅ Present

Applicable scenarios General serial device General serial device Non-CE weighing system CE-certified weighing system

V. Typical applications

General serial device connection: Manual / Automatic station, PLC, frequency converter, instrument, sensor, etc.

Industrial process control: Chemical, power, metallurgy, papermaking, pharmaceutical industries

Data acquisition and monitoring: Remote instrument data acquisition, status monitoring, parameter setting

EU regional application: Industrial field meeting CE certification

System upgrade: Replacement of serial interface spare parts for old DCS systems

VI. Product status

Type: DCS general SDI FTA (spare parts)

Production status:停产 (legacy spare parts)

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

Replacement： 51303932-227 (same function) or new C300 serial interface module

VII. Model analysis (51303932-277)

513： Honeywell DCS spare part prefix

03932： SDI serial device interface FTA series

-277： General type， manual / automatic dual mode， RS-485/422， wide temperature range， CE certification