Signal converter ATEN IC485S — serial interface adapter, dimensions 74.5×18.5×54 mm

ATEN IC485S is a compact signal converter designed for serial communications in industrial and commercial systems. The adapter converts between RS-232 and RS-422/RS-485 signal formats, enabling reliable long-distance data transmission up to 1200 m (4000 ft.). With a small form factor of 74.5×18.5×54 mm, the unit is intended for integration into I/O cabinets, controller racks, and embedded setups where space is limited while allowing multi-drop network topologies.

Advantages

The ATEN IC485S supports two-way conversion between RS-232 and RS-422/RS-485 standards, providing compatibility with a wide range of legacy and modern serial devices. It allows multi-drop connections with support for up to 32 hubs, facilitating expansion of serial networks without complex rewiring. Built-in monitoring functions verify data flow between connected devices, aiding troubleshooting and ensuring communication integrity. The compact dimensions minimise footprint and simplify mounting in crowded installations.

Suitable for

• Long-distance serial communication links up to 1200 m (4000 ft.)
• Industrial automation and process control systems
• Integration into I/O cabinets, PLC racks and communication panels
• Multi-drop networks requiring connection of multiple hubs or nodes
• Commercial environments needing reliable RS-232 to RS-422/RS-485 conversion

Key specifications

• Signal conversion: RS-232 ↔ RS-422/RS-485 two-way
• Maximum transmission distance: up to 1200 m (4000 ft.)
• Multi-drop support: up to 32 hubs/nodes
• Monitoring capability: data flow verification between devices
• Dimensions (W×H×D): 74.5 × 18.5 × 54 mm
• Intended mounting: I/O and controller integration in confined spaces

How to use

Install the ATEN IC485S in proximity to the RS-232 or RS-422/RS-485 devices it will connect. Make serial cable connections according to the chosen mode (RS-232 to RS-422/RS-485 or vice versa) and ensure proper grounding and shielding for long-distance runs. Configure the connected devices to matching serial settings (baud rate, parity, data bits and stop bits) and use the unit's monitoring function to confirm data transmission. Secure the adapter within the cabinet or mounting panel to minimise movement and protect connections from vibration or accidental disconnection.

Usage recommendations

For reliable long-distance operation, use twisted-pair, shielded cable rated for serial communications and install common-mode grounding at appropriate points. Match communication parameters across devices before testing and limit node counts per branch according to network design. Regularly check physical connections and use the converter's monitoring feature during commissioning and troubleshooting to verify signal integrity.