Honeywell 51303932-428 (51303932428) Product Details Product Model: 51303932-428 (51303932428) Brand: Honeywell Product Category: MU-TSIA12 SDI FTA Universal Serial Device Interface Terminal Component
May 15, 2026

Honeywell 51303932-428 (51303932428) Product Details Product Model: 51303932-428 (51303932428) Brand: Honeywell Product Category: MU-TSIA12 SDI FTA Universal Serial Device Interface Terminal Component

51303932-428 is a universal serial interface module of the Honeywell SDI FTA series, with the model code MU-TSIA12. It provides two physical interfaces of RS-232/RS-485 for the DCS system, supporting non-standard-specific general asynchronous serial communication. It is suitable for connecting various third-party serial devices (not dedicated to Modbus), enabling transparent data transmission between industrial field instruments, PLCs, sensors, barcode devices, etc. and the control system.

Description

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Honeywell 51303932-428 (51303932428) Product Details

Product Model: 51303932-428 (51303932428)

Brand: Honeywell

Product Category: MU-TSIA12 SDI FTA Universal Serial Device Interface Terminal Component

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

I. Product Overview

51303932-428 is a universal serial interface module of the Honeywell SDI FTA series, with the model code MU-TSIA12. It provides RS-232/RS-485 dual physical interfaces for the DCS system, supporting non-protocol-specific universal asynchronous serial communication, suitable for connecting various third-party serial devices (not dedicated to Modbus), and enabling transparent data transmission between industrial field instruments, PLCs, sensors, barcode devices, etc. and the control system.

II. Core Specification Parameters

1. Interface Characteristics

Interface Type: SDI Serial Device Interface FTA (Serial Device Interface Field Termination Assembly)

Communication Protocol: Universal Asynchronous Serial (UART), supports custom protocols, ASCII, RTU, etc. (non-specific protocols)

Physical Interface: RS-232 (EIA-232) / RS-485 (EIA-485) dual interface

Channel Number: 1 channel

Control Mode: Pure automatic (system software control, no hardware manual switch)

Baud Rate: 300 ~ 115200 bps (standard 9600 bps)

Data Bits: 5/6/7/8 bits

Parity Bit: None / Odd / Even

Stop Bit: 1/2 bit

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

2. Electrical Parameters

Isolation Voltage: 1500 V AC (channel - system side electrical isolation)

Operating Power Supply: 24 V DC (system backplane power supply)

Power Consumption: ≤ 2.5 W

Protection: Overvoltage, Overcurrent, Reverse Connection, Surge, ESD (static electricity protection)

3. Environmental Parameters

Operating Temperature: -40°C ~ +70°C

Storage Temperature: -40°C ~ +85°C

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

Protection: PCB Three-Defense Coating (damp-proof, salt fog-proof, mold-proof)

Vibration / Impact: Compliant with IEC 60068 standard

EMC: CE, FCC Part 15 Class A

4. Physical Characteristics

Weight: Approximately 0.28 kg (280 gm)

Installation: Hot-swappable, compatible with UCN/C300/APM/HPM standard racks

Interface: Front 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

Non-protocol-specific: Designed for universal serial devices, not bound to specific protocols such as Modbus

Transparent Data Transmission: Direct data transmission, no protocol conversion, response time < 10ms

Bidirectional Data Transmission: Supports process data reading and writing, device status monitoring

Data Buffer: Built-in 128-byte communication buffer

2. Isolation and Reliability

High Isolation Design: 1500 V AC isolation, effectively suppressing industrial environment interference

Industrial-grade Stability: Wide temperature working range, suitable for harsh conditions

Plug-and-Play: Supports hot-swapping, facilitating system maintenance and replacement

3. System Compatibility

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

Direct Replacement: Can be used as spare parts for the same series MU-TSIA12 model

Non-redundant Design: Single-channel standard configuration IV. Comparison with Key Models of the Same Series Table

Characteristics 51303932-428 51303932-426 51303932-403

Model code MU-TSIA12 MU-TSIM12 MU-TSIM13

Protocol type General Serial (UART) Modbus Specialized Modbus Master/Slave

Physical interface RS-232/485 RS-232 (DB9) RS-232/485

Isolation voltage 1500 V AC 1500 V AC 2000 V AC

Operating temperature -40~+70°C -40~+70°C -40~+85°C

Hardware switch ❌ None ❌ None ❌ None

Location General Serial Interface Modbus RS-232 Specialized Modbus Enhanced High Performance Version

VII. Typical Applications

General Serial Device Connection: Connecting non-Modbus instruments, PLCs, sensors, HMIs, barcode devices, etc.

Custom Protocol Communication: Supporting user-defined ASCII/Binary Protocol Devices

Industrial Process Control: DCS systems in industries such as chemical, power, metallurgy, and papermaking

Data Acquisition System: Real-time acquisition of data from third-party serial devices

System Spare Parts: Replacement of old UCN/APM system MU-TSIA12 modules

VIII. Product Status

Type: DCS Specialized SDI FTA (Spare Parts)

Production status:停产 (legacy spare parts)

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

Replacement: New C300 General Serial Interface Module

IX. Model Analysis (51303932-428)

513: Honeywell DCS Spare Part Prefix

03932: SDI Serial Device Interface FTA Series

-428: MU-TSIA12, General Serial, RS-232/485, 1500V Isolation, CE Certification, -40~+70°C Temperature Range

Product Model: 51303932-428 (51303932428)

Brand: Honeywell

Product Category: MU-TSIA12 SDI FTA Universal Serial Device Interface Terminal Component

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

I. Product Overview

51303932-428 is a universal serial interface module of the Honeywell SDI FTA series, with the model code MU-TSIA12. It provides RS-232/RS-485 dual physical interfaces for the DCS system, supporting non-protocol-specific universal asynchronous serial communication, suitable for connecting various third-party serial devices (not dedicated to Modbus), and enabling transparent data transmission between industrial field instruments, PLCs, sensors, barcode devices, etc. and the control system.

II. Core Specification Parameters

1. Interface Characteristics

Interface Type: SDI Serial Device Interface FTA (Serial Device Interface Field Termination Assembly)

Communication Protocol: Universal Asynchronous Serial (UART), supports custom protocols, ASCII, RTU, etc. (non-specific protocols)

Physical Interface: RS-232 (EIA-232) / RS-485 (EIA-485) dual interface

Channel Number: 1 channel

Control Mode: Pure automatic (system software control, no hardware manual switch)

Baud Rate: 300 ~ 115200 bps (standard 9600 bps)

Data Bits: 5/6/7/8 bits

Parity Bit: None / Odd / Even

Stop Bit: 1/2 bit

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

2. Electrical Parameters

Isolation Voltage: 1500 V AC (channel - system side electrical isolation)

Operating Power Supply: 24 V DC (system backplane power supply)

Power Consumption: ≤ 2.5 W

Protection: Overvoltage, Overcurrent, Reverse Connection, Surge, ESD (static electricity protection)

3. Environmental Parameters

Operating Temperature: -40°C ~ +70°C

Storage Temperature: -40°C ~ +85°C

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

Protection: PCB Three-Defense Coating (damp-proof, salt fog-proof, mold-proof)

Vibration / Impact: Compliant with IEC 60068 standard

EMC: CE, FCC Part 15 Class A

4. Physical Characteristics

Weight: Approximately 0.28 kg (280 gm)

Installation: Hot-swappable, compatible with UCN/C300/APM/HPM standard racks

Interface: Front 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

Non-protocol-specific: Designed for universal serial devices, not bound to specific protocols such as Modbus

Transparent Data Transmission: Direct data transmission, no protocol conversion, response time < 10ms

Bidirectional Data Transmission: Supports process data reading and writing, device status monitoring

Data Buffer: Built-in 128-byte communication buffer

2. Isolation and Reliability

High Isolation Design: 1500 V AC isolation, effectively suppressing industrial environment interference

Industrial-grade Stability: Wide temperature working range, suitable for harsh conditions

Plug-and-Play: Supports hot-swapping, facilitating system maintenance and replacement

3. System Compatibility

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

Direct Replacement: Can be used as spare parts for the same series MU-TSIA12 model

Non-redundant Design: Single-channel standard configuration IV. Comparison with Key Models of the Same Series Table

Characteristics 51303932-428 51303932-426 51303932-403

Model code MU-TSIA12 MU-TSIM12 MU-TSIM13

Protocol type General Serial (UART) Modbus Specialized Modbus Master/Slave

Physical interface RS-232/485 RS-232 (DB9) RS-232/485

Isolation voltage 1500 V AC 1500 V AC 2000 V AC

Operating temperature -40~+70°C -40~+70°C -40~+85°C

Hardware switch ❌ None ❌ None ❌ None

Location General Serial Interface Modbus RS-232 Specialized Modbus Enhanced High Performance Version

VII. Typical Applications

General Serial Device Connection: Connecting non-Modbus instruments, PLCs, sensors, HMIs, barcode devices, etc.

Custom Protocol Communication: Supporting user-defined ASCII/Binary Protocol Devices

Industrial Process Control: DCS systems in industries such as chemical, power, metallurgy, and papermaking

Data Acquisition System: Real-time acquisition of data from third-party serial devices

System Spare Parts: Replacement of old UCN/APM system MU-TSIA12 modules

VIII. Product Status

Type: DCS Specialized SDI FTA (Spare Parts)

Production status:停产 (legacy spare parts)

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

Replacement: New C300 General Serial Interface Module

IX. Model Analysis (51303932-428)

513: Honeywell DCS Spare Part Prefix

03932: SDI Serial Device Interface FTA Series

-428: MU-TSIA12, General Serial, RS-232/485, 1500V Isolation, CE Certification, -40~+70°C Temperature Range


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