RS485 Isolator / Repeater

RS485 Isolator / Repeater

The Diagonal Systems RS485 Isolator / Repeater is specially designed to be used for isolating RS485 networks that contain any mixture of batteries and mains voltages. It can also be used as a RS485 signal amplifier, reaching longer cable distances.

Applications

  • Industrial machinery control.

  • Industrial control local area networks.

  • Energy meter networks.

  • Energy storage systems.

  • Lighting systems.

Specifications

General specifications

  • Digitally isolated.

  • Small form factor: 63.5 x 43.5 x 30 mm (2.5 x 1.71 x 1.18 in).

  • Extruded aluminium 6063 T6 (HE9) enclosure.

  • 3 LEDs for indicating faults and activity:

    • Power Supply.

    • RS485 Port 1 Tx activity.

    • RS485 Port 2 Tx activity.

  • 2 x RS485 Connector: 5 pin pluggable terminal block.

  • Power Connector: 2 pin pluggable terminal block.

RS485

  • Full-Duplex or Half-Duplex RS485 functionality.

  • Protection:

    • IEC 61000-4-2 (ESD): Air 15kV, Contact 8kV.

    • Compatible with IEC 61000-4-4 (EFT): 40A, 5/50ns.

    • Compatible with IEC 61000-4-5 (Surge): 24A, 8/20µs - Level 2 (Line-Ground) and Level 3 (Line-Line).

    • 600 Watts Peak Pulse Power per Line (tp = 8/20µs).

  • Reduced slew-rate driver that minimizes EMI.

  • Error-free data transmission up to 500kbps.

  • Fail-Safe Circuitry (guarantees a logic-high receiver output when the receiver inputs are open or shorted).

Electrical characteristics

  • Operating voltage: 9 to 28 Vdc.

  • Low power consumption: 44mA @ 12V (0.53W).

  • Maximum operating voltage: 30 Vdc.

  • Operating temperature: 0 °C to 85 °C.

  • Isolation barrier: 1kV.

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