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Media Component Type
Cable Ends & Adapters
Connector Type
RS232 Connectors
RS485 Connectors
Serial - RS-232
Serial - RS-485
Ease of Installation
Beginner (Installs < 10 minutes)
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RS-232 to RS-485 Converter Connects up to 32 Units to 3,700 Foot Range
SECO-LARM EVA-RS1 RS-232 to RS-485 Converter
SECO-LARM Enforcer EVA-RS1 RS-232 to RS-485 Converter
SECO-LARM Enforcer EVA-RS1 RS-232 to RS-485 Converter
Item# 77703
Price: Normally $37.20 
Hot Deal $16.28
Free shipping on orders over $175 - See Details


  • 9-pin DB-9 female connector for RS-232 to 2-wire RS-485
  • Port powered, no external power supply required
  • Range: 3/4 Mile (1,200 Meters)

Essential Info

Use the SECO-LARM Enforcer RS-232 to RS-485 Converter to connect to a standard RS-232 cable or to extend the range of your security cameras. Up to 32 connectors can be used together giving you a range of up to three quarters of a mile. The connector is port powered and no external power supply is needed. This connector also automatically controls the send data and no additional software is needed.

  • 9-pin DB-9 female connector for RS-232 to 2-wire removable Terminal Block for RS-485

  • Two wire, differential signals, half duplex

  • No external power supply required. Port powered

  • Auto-switching baud rate, speed up to 115,200 baud (115.2 kbps) over a distance of 1,200 meters

  • Up to 32 devices may be connected together in RS-485 multipoint operation

  • No software needed. Automatic send data control

  • Removable terminal block for ease of installation and trouble shooting

  • Specifications

    Manufacturer Product NoEVA-RS1
    InputRS-232, DB9
    OutputRS-485, Removable terminal block
    Current Consumption10mA (max)
    Transmission Range3,700 Feet (1,200 meters)
    PowerNo power required, port powered
    Storage temperature-22°F - 158°F (-30°C - 70°C)
    Operating temperature14° - 113°F (-10° - 45°C)
    Dimensions2 - 7/8 inches (W) x 15/16 inches (H) x 5/8 inches (D) (73 millimeters x 33 millimeters x 17 millimeters)
    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: SECO-LARM USA Inc, Tel: (949) 261-2999


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