TK-MUX021 Honeywell Serial Interface Module

The Honeywell TK-MUX021 (part number 51404391-375) is a industrial serial interface module designed for data transmission between control systems and field instrumentation. Utilizing an RS485 communication link, it establishes reliable multi-drop networking across distributed industrial automation architectures.

Electrical Characteristics and Power Profile

The module operates on a nominal 24 VDC input supply with a rated primary current consumption of 1.3 A. Internal power rail profiles include current draws of 5.6 mA at 1.2 VDC, 1.0 A at 3.3 VDC, 1.3 A at 5.1 VDC, and 4 mA at 24 VDC, supporting internal logic and signal conditioning circuitry across operational modes.

Physical and Operating Environmental Limits

Engineered for extreme temperature resilience, the TK-MUX021 operates reliably across an extended temperature range from -40 deg C to +85 deg C. Its compact physical footprint measures 10.8 cm x 8.7 cm x 7.8 cm with a total net weight of 0.59 kg, making it suitable for panel mounting inside dense control enclosures.

Frequently Asked Questions

Q: What communication interface is provided on the TK-MUX021 module?

A: The TK-MUX021 utilizes an RS485 serial communication interface for multi-drop serial device data transmission.

Q: What are the primary input power supply requirements for the TK-MUX021?

A: The module requires a 24 VDC input supply with a nominal current consumption of 1.3 A.

Q: What is the operating temperature specification for this module?

A: The module is rated for deployment in wide-temperature environment conditions ranging from -40 deg C to +85 deg C.