LM Router101-B

BACnet Router

LM BACnet router 101-B, a commonly device for building automation systems, based on the BACnet protocol. It provides 1 RS-485 serial port and 1 10/100 Mbps Ethernet ports.It can implement communication routing functions between the BACnet IP network and the BACnet MS/TP bus. The configuration is done through a web page, which is very convenient for users to operate.


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CPU ARM926EJ,300MHz
RAM 64MByte High performance memory
Nand Flash 128MByte SLC Flash
Serial port RS485X1
Network port 1 100M/10M Ethernet interface
Wifi Optional USB wireless network card
Power DC9V～48V
Total Weight 280g
Enclosure rating IP51
Mechanical Dimensions 98.5mm×96mm×27mm(L×W×H)
Mechanical installation DIN rail card slot fixing
Power consumption The maximum power consumption of the motherboard is ≤2W
Operating temperature -40～85℃
Working relative humidity 20 to 90% non-condensing

  • Achieve transparent transmission between BACnet MS / TP and BACnet IP

  • Suitable for Johnson Controls, Siemens, Honeywell, Delta, Schneider and domestic series DDC,

    Siemens VAV controller and other MSTP bus integration

  • Program upload and download of BA system software to DDC equipment

  • Support 2 MSTP buses at the same time, optically isolated MS / TP port; baud rate is 9.6-115.2kbps;

  • The configuration is completed through the web page, and the user operation is very convenient

  • 10/100 Mbps Ethernet with adaptive and Auto-MDIX (Auto Line Sequence Crossover)