Honeywell 621-9938 Serial I/O Module: Flexible Industrial Connectivity

This versatile I/O module offers reliable serial communication for automation systems. It supports multiple point configurations and redundant operation. Easy to install and configure. Perfect for critical industrial applications.

Technical Specifications

• Brand: Honeywell
• Model:621-9938
• Product Type: Serial I/O Module
• I/O Points: 8/16/32 configurable
• Redundancy: Dual redundant systems
• Power Supply: 24 VDC
• Power Consumption: 5W
• Protocol: Modbus RTU
• Baud Rate: 9600-115200 bps
• Isolation: 1500V RMS
• Operating Temp: 0°C to +60°C
• Storage Temp: -40°C to +85°C
• Humidity: 5% to 95% non-condensing
• Weight: 0.7 kg
• Dimensions: 3.8 × 26.7 × 16.5 cm

Shipping Services

• Worldwide express delivery
• FedEx Priority shipping
• UPS Express services
• DHL International
• Real-time tracking
• Secure packaging

Warranty & Support

• 12 months warranty
• Technical support included
• Online documentation
• Quick replacement service

Expert Questions

• Q: What cable types are supported?
  A: Shielded twisted pair for RS-485 communication
• Q: Can I mix input and output types?
  A: Yes, points are individually configurable
• Q: What is the maximum network size?
  A: Supports up to 247 devices on one network
• Q: Is configuration software required?
  A: Yes, uses standard Modbus configuration tools
• Q: What redundancy features are included?
  A: Dual power and communication redundancy

Note: Specifications subject to technical improvements. Professional installation recommended.