Description
The Honeywell 621-9938R Serial Input/Output Module (SIOM) is a redundant communication unit designed for Honeywell TDC 3000 systems. It manages the serial I/O card file and interfaces with the 621-9939 Serial Link Module, ensuring reliable data exchange in mission-critical industrial automation.
Specifications
- Manufacturer: Honeywell
- Model Number: 621-9938R
- Type: Serial I/O Module (SIOM)
- System Compatibility: Honeywell TDC 3000 / ISSC 600 systems
- Points Supported: 8 / 16 / 32 point configurations
- Dimensions: 33 × 23 × 13 cm
- Weight: 1.85 lbs (≈0.84 kg)
- Condition: Brand new, in stock
- Warranty: 12 months
- Origin: USA
Features
- Redundant Operation: Supports dual redundant serial I/O lines for high reliability.
- System Integration: Interfaces directly with 621-9939 Serial Link Module in processor card file.
- Flexible Configuration: Available in 8, 16, or 32 point setups.
- Industrial Compliance: Certified under CE, TUV, UL508, and CSA standards.
- Durability: Designed for long-term use in mission-critical automation environments.
- Installation: Requires terminating resistors (200/300 ohm) at extreme ends of serial channels.
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