RS-485 Isolation ModuleSKU: ISO-M485

ISO-M485 SERIES

Applications

Where ISO-M485 is deployed

SCADA Networks PLC Field Bus Modbus RTU Networks Industrial Sensors Energy Monitoring Solar PV Strings Maritime Comm Substation Telemetry
Reliable RS-485 Communication, Reinforced with Isolation & Surge Protection
ISO-M485 SERIES​

When your operations depend on fast, stable, and secure data communication, you can’t afford downtime or interference. The ISO-M485 Series is engineered for industrial-grade RS-485 connections with built-in galvanic isolation and robust surge protection, ensuring maximum reliability in the most demanding environments.

Boost Your Communication. Protect Your Investment.
With the ISO-M485 Series, you get speed, stability, and protection all in one compact, reliable device.

KEY FEATURES

Why engineers choose ISO-M485

01

2.5kV Optical Isolation

Optocoupler isolation between RS-485 ports protects upstream PLC/SCADA from ground loops and field-side faults.

02

Built-in Surge Protection

Integrated TVS diodes + gas discharge tubes guard against lightning-induced and switching transients on outdoor cables.

03

256 Devices Per Bus

Extended driver capacity supports up to 256 nodes per segment. Auto direction control simplifies wiring.

04

Industrial Temp Range

-40°C to +85°C operation. DIN rail mountable. Rated for continuous operation in harsh field cabinets.

05

Flexible Wide Power Input

Accepts 7-15VDC or 9-24VDC supply variants for easy integration with industrial 12V or 24V control panels.

06

High-Speed Data Rate

Supports up to 500 kbps data rate (within distance limits) for high-throughput SCADA and PLC networks.

FAQ

ISO-M485 | Frequently Asked Questions

What isolation voltage does ISO-M485 provide?
2.5kV optocoupler isolation between RS-485 ports protects upstream PLC/SCADA equipment from ground loops, common-mode noise, and field-side faults. Galvanic isolation prevents damaging currents from propagating to your control room.
How many devices per RS-485 bus?
Up to 256 nodes per segment with the extended driver capacity. Standard RS-485 supports 32 devices - ISO-M485's 1/8 unit-load driver enables 8× larger networks without needing repeaters.
What is the operating temperature range?
-40°C to +85°C continuous operation. Designed for harsh field cabinets, outdoor enclosures, and unconditioned spaces typical in industrial and utility deployments.
Does it include built-in surge protection?
Yes. Integrated TVS diodes and gas discharge tubes guard against lightning-induced and switching transients on outdoor cables. No external SPD required for moderate exposure environments.
Get Started

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Request a quote or technical sample. Our team responds within 24 hours with wiring diagram and isolation topology recommendations.

✓ Wiring diagram ✓ Response within 24h ✓ Bulk pricing available