Multiplexer Modules | Honeywell TK-MUX021
The Honeywell TK-MUX021 is a 32-channel serial interface multiplexer module designed for Honeywell Experion PKS and TDC 3000 process control systems. Carrying part number 51404391-375, this assembly aggregates multi-channel serial communications into the control network, allowing process controllers to communicate with remote serial field devices and sub-systems. The TK-MUX021 features factory conformal coating for reliable operation in corrosive industrial environments.
Serial Communication and Data Multiplexing
The module functions as a specialized hardware interface that consolidation and manages serial data traffic across 32 individual channels. By multiplexing serial signals across a single control interface, the module reduces cabinet wiring density and minimizes CPU load on primary process controllers. Internal signal isolation and data buffering help maintain communication integrity when interfacing with field instrumentation across long cable runs.
Model Prefix and Board Revisions
Honeywell utilizes prefix codes to differentiate board treatment options for its hardware assemblies:
- TK-MUX021: Factory conformal-coated version designed for harsh operating environments containing airborne contaminants.
- TC-MUX021: Standard non-conformal coated equivalent of the 32-channel multiplexer module.
- Part Number 51404391-375: Main board assembly reference code, commonly identified across hardware revisions such as Rev K or Version 3.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | TK-MUX021 |
| Brand | Honeywell |
| Part Number | 51404391-375 |
| Product Type | Serial Interface / 32-Channel Multiplexer Modules |
| System Architecture | Experion PKS / TDC 3000 |
| Number of Channels | 32 Channels |
| Interface Type | Serial Interface |
| Environmental Protection | Conformal Coated (TK-prefix) |
| Alternate Model | TC-MUX021 (Standard Coating) |
| Product Status | Discontinued by Manufacturer |
| Weight | 0.68 kg |
Frequently Asked Questions
Q: What is the functional difference between part numbers TK-MUX021 and TC-MUX021? A: Both modules share the same electrical specifications and 32-channel serial interface functionality. The "TK" prefix specifies factory conformal coating on the printed circuit board, whereas the "TC" prefix indicates standard coating.
Q: Can the TK-MUX021 part number 51404391-375 directly replace a TC-MUX021 module? A: Yes. The conformal-coated TK-MUX021 is fully compatible with slots previously occupied by the TC-MUX021 and provides additional environmental protection against moisture and corrosive gases.
Multiplexer Modules | Honeywell TK-MUX021
Multiplexer Modules | Honeywell TK-MUX021
The Honeywell TK-MUX021 is a 32-channel serial interface multiplexer module designed for Honeywell Experion PKS and TDC 3000 process control systems. Carrying part number 51404391-375, this assembly aggregates multi-channel serial communications into the control network, allowing process controllers to communicate with remote serial field devices and sub-systems. The TK-MUX021 features factory conformal coating for reliable operation in corrosive industrial environments.
Serial Communication and Data Multiplexing
The module functions as a specialized hardware interface that consolidation and manages serial data traffic across 32 individual channels. By multiplexing serial signals across a single control interface, the module reduces cabinet wiring density and minimizes CPU load on primary process controllers. Internal signal isolation and data buffering help maintain communication integrity when interfacing with field instrumentation across long cable runs.
Model Prefix and Board Revisions
Honeywell utilizes prefix codes to differentiate board treatment options for its hardware assemblies:
- TK-MUX021: Factory conformal-coated version designed for harsh operating environments containing airborne contaminants.
- TC-MUX021: Standard non-conformal coated equivalent of the 32-channel multiplexer module.
- Part Number 51404391-375: Main board assembly reference code, commonly identified across hardware revisions such as Rev K or Version 3.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | TK-MUX021 |
| Brand | Honeywell |
| Part Number | 51404391-375 |
| Product Type | Serial Interface / 32-Channel Multiplexer Modules |
| System Architecture | Experion PKS / TDC 3000 |
| Number of Channels | 32 Channels |
| Interface Type | Serial Interface |
| Environmental Protection | Conformal Coated (TK-prefix) |
| Alternate Model | TC-MUX021 (Standard Coating) |
| Product Status | Discontinued by Manufacturer |
| Weight | 0.68 kg |
Frequently Asked Questions
Q: What is the functional difference between part numbers TK-MUX021 and TC-MUX021? A: Both modules share the same electrical specifications and 32-channel serial interface functionality. The "TK" prefix specifies factory conformal coating on the printed circuit board, whereas the "TC" prefix indicates standard coating.
Q: Can the TK-MUX021 part number 51404391-375 directly replace a TC-MUX021 module? A: Yes. The conformal-coated TK-MUX021 is fully compatible with slots previously occupied by the TC-MUX021 and provides additional environmental protection against moisture and corrosive gases.
