EWIMAR RS-485 Bus Distributor with Optical Isolation, Model EW-485/4/1/SO

Description

Technical Specifications

• Brand
  EWIMAR
• Model (MPN)
  EW-485/4/1/SO
• EAN
  5904041751363
• Product Type
  Active RS-485 bus distributor / amplifier / optical separator
• Input Ports
  1 × RS-485 (Master)
• Output Ports
  4 × RS-485 (isolated Slave ports)
• Supported Devices
  Up to 4 × 128 devices (512 total with low-impedance drivers)
• Baudrate Range
  300 bit/s – 500 kbit/s (10 Mbit/s on special order)
• Transmission Mode
  Half-duplex (Master ↔ Slaves only)
• Optical (Galvanic) Isolation
  >1 kV DC per port
• Surge Protection
  600 W @ 8/20µs on each RS-485 port and power input
• Power Supply
  9–24 V DC (some listings: 9–30 V DC)
• Current Consumption
  ~150 mA max @ 12 V DC (listings vary up to ~180 mA)
• Connectors
  Removable screw terminal blocks (10-position)
• LED Indicators
  Power (PWR), Transmission (TXD/RXD) (some builds include error LEDs E1–E4)
• Enclosure
  Wall-mountable standalone housing
• IP Rating
  IP40
• Dimensions (device)
  90 × 83 × 33 mm (with terminals)
• Product Weight
  150 g
• Package Weight
  300 g
• Operating Temperature
  −20°C to +60°C (some sources −25°C to +70°C)
• Humidity Range
  5% – 95% RH
• Transmission Distance
  Up to 5 km (at 300 bps)
• RS-485 Compliance
  EIA/TIA RS-485 standards
• Slave-to-Slave Communication
  Not supported (no cross-communication)
• Short-Circuit/Overvoltage Protection
  Included on ports
• Typical Applications
  Industrial telemetry, building automation, large RS-485 systems

Ratings