I-3591 M-Bus Repeater Module

The I-3591 is a M-Bus repeater developed by ICP DAS to strengthen the driving ability of M-Bus, extend the communication distance of M-Bus and reshape the signal waveform, and also provides the M-Bus master with better communication capabilities.

M-Bus (Meter-Bus) is a communication interface widely used in various meters, such as electricity meters, water meters, and heat meters. It is easy to install (two-wire system includes power and communication function) and robustness are the most important features.

The I-3591 repeater is easy to use and does not require any settings, it can be used directly after connecting to the line.

Key Features
  • Supports M-Bus physical layer
  • Supports drive up to 100 M-Bus slaves
  • Auto M-Bus baud rate
  • M-Bus distance is extended by 1200 meters (2400 bps)
  • M-Bus overloading alarm
  • Overcurrent and short-circuit protection on the M-Bus port
  • 3750 Vrms photo-couple isolation on the M-Bus port
  • ±4 kV ESD to contact
  • Reverse polarity protection on power


  • Water meter management in a community
  • Data collection of power meters in factories
  • Monitoring of meters such as gas, water, heat or other meter instruments

Contact our technical sales team via sales@oksa.co.uk or 02039976277 for more information about our M-BUS gateways and repeaters.