3-RS232 | Edwards Ancillary RS-232 Communication Card (Dual Port, Optically Isolated)
Edwards · Industrial Automation & Electrical
Description The Edwards 3-RS232 ancillary communications card is a serial interface module that allows connection of control panels to external devices. It supports two optically-isolated RS-232 circuits and is designed for integration with printers, modems, and command equipment. Technical Specifications Condition New/Never Used Surplus Brand Edwards Category Computer Part Number 3-RS232 Subcategory Communication Card Voltage 24 VDC Current (Standby) 58 mA at 24 VDC Current (Alarm) 58 mA at 24 VDC Circuit Configuration Class B Circuit Type RS-232 serial, two optically-isolated circuits Data Rate 300 to 38,400 baud (selectable) Max Circuit Length 50 ft (15.2 m) Minimum Wire Size 18 AWG (0.75 mm²) Operating Temperature 32 to 120°F (0 to 49°C) Relative Humidity 0 to 93% noncondensing Typical Applications Printers, modems, external control equipment Weight 0.30 lbs Information About 3-RS232 The 3-RS232 is an ancillary communication card engineered for Edwards fire alarm and control systems, enabling RS-232 serial communication. This card provides two independent, optically-isolated ports, allowing reliable interfacing with external devices without risk of feedback interference. It is suitable for Class B configurations and supports a wide range of baud rates for flexible system applications. Designed for dependable panel connectivity, the 3-RS232 operates under normal fire system environmental conditions and integrates seamlessly into Edwards architectures. Key Features: Dual RS-232 Ports: Two optically-isolated serial circuits for external device integration. Baud Rate Flexibility: Supports multiple data rates up to 38,400 baud for diverse applications. Class B Configuration: Built to operate within Edwards Class B circuit standards. Environmental Tolerance: Functions in 32–120°F with up to 93% relative humidity. Compact Design: Lightweight board allows easy installation inside control panels. Extended Compatibility: Connects to printers, modems, and control equipment. Standard Wiring: Requires 18 AWG (0.75 mm²) minimum cabling for reliable operation. The 3-RS232 delivers the reliability and precision required for serial communications in Edwards control systems.
Brand: Edwards · Category: Industrial Automation & Electrical
Key features
- Dual RS-232 Ports: Two optically-isolated serial circuits for external device integration.
- Baud Rate Flexibility: Supports multiple data rates up to 38,400 baud for diverse applications.
- Class B Configuration: Built to operate within Edwards Class B circuit standards.
- Environmental Tolerance: Functions in 32–120°F with up to 93% relative humidity.
- Compact Design: Lightweight board allows easy installation inside control panels.
- Extended Compatibility: Connects to printers, modems, and control equipment.
- Standard Wiring: Requires 18 AWG (0.75 mm²) minimum cabling for reliable operation.
Specifications
| Manufacturer part number | 3-RS232 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Edwards |
| Category | Computer |
| Part Number | 3-RS232 |
| Subcategory | Communication Card |
| Voltage | 24 VDC |
| Current (Standby) | 58 mA at 24 VDC |
| Current (Alarm) | 58 mA at 24 VDC |
| Circuit Configuration | Class B |
| Circuit Type | RS-232 serial, two optically-isolated circuits |
| Data Rate | 300 to 38,400 baud (selectable) |
| Max Circuit Length | 50 ft (15.2 m) |
| Minimum Wire Size | 18 AWG (0.75 mm²) |
| Operating Temperature | 32 to 120°F (0 to 49°C) |
| Relative Humidity | 0 to 93% noncondensing |
| Typical Applications | Printers, modems, external control equipment |
| Weight | 0.30 lbs |
| Product type | Communication Card |
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