RS-485 network amplifier MAX-RM-07

RS-485 Amplifier and Isolator – Reliable Communication in Automation Systems

The MAX-RM-07 RS-485 network amplifier is a key element in building and expanding reliable serial communication systems, especially where high resistance to interference and the ability to extend data transmission range are required. The device combines the functions of a signal amplifier and a galvanic isolator, making it an ideal solution for industrial applications using the Modbus RTU protocol.

Versatile Application and Network Protection

The MAX-RM-07 module not only amplifies the signal, allowing you to connect more devices to the RS-485 bus, but also protects against the effects of electromagnetic interference. Galvanic isolation between the power and communication ports minimizes the risk of damage resulting from potential differences or voltage surges. This is particularly important in industrial environments where electrical installations are often exposed to voltage fluctuations. The ability to branch the signal line allows for flexible network design and adaptation to specific installation needs.

Specification and Mounting

The device is characterized by compact dimensions (18 mm wide) and mounting on a standard 35 mm rail, which facilitates integration with existing infrastructure. It supports a wide range of data transmission speeds – from 1200 to 115200 bps – ensuring compatibility with various devices and applications. The power supply in the range of 9-30 V DC provides flexibility in choosing a power source. Screw terminals with a cross-section of 2.5 mm² guarantee reliable electrical connections, and the tightening torque of 0.4 Nm ensures their durability. Operation at a temperature of -25°C to +50°C allows the device to be used in harsh environmental conditions. The IP20 protection class provides basic protection against touching and ingress of solid objects.

Key Features for Professionals:

• Signal Amplification: Increases the range of the RS-485 bus and allows connection of more devices.
• Galvanic Isolation: Protects against electromagnetic interference and voltage surges.
• Wide Transmission Speed Range: Compatibility with various Modbus RTU devices.
• Compact Dimensions: Easy integration with existing infrastructure (1 module - 18mm).
• Mounting on 35 mm Rail: Standard mounting method facilitating installation.
• 9-30V DC Supply Voltage: Flexibility in choosing a power source.
• 2.5 mm² Screw Terminals: Reliable and durable electrical connections.