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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
Water Damage Prevention: Supported
Processor: High-performance processor for efficient control tasks
-0: Always 0
Ease of use: Simple installation and configuration
Honeywell 621-9938 Serial I/O Module Gate Driver Unit Water Damage Prevention: SupportedDescription The Honeywell 621 9938 Serial I O Module (SIOM) is a dual port communication card used in Honeywell TDC 3000 and IPC 620 621 systems. It manages the serial I O card file and interfaces with the 621 9939 Serial Link Module (SLM), ensuring reliable communication between controllers and serial based field devices. Specifications Model: 621 9938 Type: Serial I O Module (SIOM) Ports: Dual communication ports for redundant serial I O lines
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