Rugged Digital I/O PCB Module | Honeywell 621-3550
Manufacturer: HONEYWELL
-
Part Number: 621-3550
Condition：New with Original Package
Product Type: Rugged Digital I/O PCB Module
-
Country of Origin: Japan
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Honeywell 621-3550 Digital Input/Output Module Overview
The Honeywell 621-3550 is a versatile digital I/O module designed for Honeywell IPC 620/621 control systems. It integrates eight digital inputs and eight digital outputs into a single compact module, providing flexible connectivity for field devices.
Its robust design ensures reliable operation in harsh industrial environments, including high vibration, humidity, and temperature extremes. Built-in diagnostics and status indicators simplify monitoring and maintenance.
The module supports hot-swapping, allowing replacement without system downtime. Channel-to-channel and system isolation protect the control system from electrical noise and improve signal integrity.
Technical Specifications
| Feature | Description |
|---|---|
| Model Number | 621-3550 |
| Type | Digital Input/Output Module |
| Number of Channels | 8 Digital Inputs + 8 Digital Outputs |
| Input Voltage Range | Typically 24 VDC (field signal level) |
| Output Voltage Range | Typically 24 VDC or 115 VAC (depending on configuration) |
| Output Type | Solid-state or relay-based (system-dependent) |
| Isolation | Channel-to-channel and system isolation for noise immunity |
| Diagnostics | Built-in status indicators and fault detection |
| Hot-Swappable | Yes – replacement without system shutdown |
| Mounting | Rack-mounted within IPC 620/621 chassis |
| Environmental Rating | IP67 – dust-tight and water-resistant |
| Operating Temperature | –20°C to +60°C |
| Certifications | CE compliant; meets industrial automation standards |