Datalink Corporation
DataLink CD485-FA Series RS232C⇔RS485 Noise Countermeasure Converter
Manufacturer: DataLink
Model: CD485-FA
Features
- RS232C to RS485 (2-wire) / RS422 (4-wire) signal converter
- RoHS directive compliant
- Built-in RS485 noise protection (lightning surge and static electricity countermeasures)
- Meets IEC standard test level 4:
-Surge Test: IEC61000-4-5, ±4kV
-Electrostatic Test: IEC61000-4-2, ±10kV
-EFT/Burst Test: IEC61000-4-4, ±2kV - RS485 (RS422) side uses IEC Level 4-compliant circuit for improved surge and static resistance
- Ideal for converting RS232C signals from measuring instruments and PLCs
- Supports bus line connection of up to 32 RS232C devices
- Enables up to 1200m communication distance using two units
- Power supply options: standard AC adapter or DC 6V–24V via terminal block
- RS485 mode enables optimized bus line control based on RS232C communication conditions
- Compatible with CD485 series; supports drop-in replacement for noise-resistant upgrades
- Dip switch selectable fail-safe circuit and impedance matching
- Optional DIN rail mounting bracket available for secure installation
Specifications
◆Connection configuration
◆Outline specifications
| Model | CD485-FA |
|---|---|
| Maximum communication distance | 1200m |
| Maximum communication speed | 115.2Kbps |
| Number of RS232C devices that can be connected | Maximum 32 units (bus line connection) |
| Conversion signal line | TXD/RXD |
| External dimensions | W93 × H27 × D104mm ±1 (excluding connectors and other protrusions) |
| weight | 300g |
| operating temperature | 0 to 50°C (0 to 40°C when using AC adapter) |
| Current consumption | 80mA/7.5V 30mA/24V (max) |
| Noise Countermeasures | Photocoupler isolation Silicon surge absorber built-in Ceramic arrester built-in |
| Interface | RS232C/RS485 (2-wire) RS422 (4-wire) |
| RS232C Connector | Dsub9 pin male |
| RS485/RS422 Connectors | 7-pin terminal block |
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