Honeywell 621-9928R Serial Link Selector Module — industrial automation module front view

Honeywell 621-9928R — front panel with LED indicators

Honeywell 621-9928R — backplane connector side

Honeywell 621-9928R — PCB board detail

Honeywell

Honeywell 621-9928R Serial Link Selector Module

SKU: 621-9928R In Stock

Honeywell

Genuine Honeywell 621-9928R. Serial Link Selector Module. Factory-tested, 48h burn-in. 12-month warranty. Ships within 24h.

Technical Specifications

621-9928R	module is designed to facilitate switching between multiple serial communication channels, enabling devices such as PLCs, HMIs, and sensors to connect seamlessly to a central control system.
Power Supply	24 VDC ±10%
Power Consumption	7 W max
Baud Rate	Up to 256 kbps
Signal Isolation	2000 VDC
Operating Temperature	-25°C to 75°C (-13°F to 167°F)
Storage Temperature	-40°C to 100°C (-40°F to 212°F)
Humidity	0% to 90% RH, non-condensing
Weight	500 g
Versatile Communication	Supports both RS-232 and RS-485 communication protocols for flexibility in system design.
High Isolation	Offers 2000 VDC signal isolation for enhanced safety and reliability.
Wide Temperature Range	Operates effectively across a broad range of temperatures, making it suitable for diverse environments.
Compact Design	Lightweight and compact for easy installation in various applications.
Manufacturer	Honeywell
Model / SKU	621-9928R

Request a Quote — 621-9928R

Ships within 24 hours | 12-Month Warranty | Worldwide Delivery

Category: safety systems all plc systems sensors transducers communication modules hmi displays honeywell

Honeywell 621-9928R

Honeywell 621-9928R Serial Link Selector Module. Serial Link Selector Module. Genuine Honeywell. Live-rack tested, 48h burn-in. 12-month warranty. Ships within 24h.

Compatible Parts — Same System

These modules share the same system family as the 621-9928R. Commonly ordered together for complete rack builds or spare parts kits.

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