The transmission speed must be set correctly before the CIM 300 is ready to communicate on the BACnet MS/TP network. DIP switches SW4 and SW5 are used to set the transmission speed.
The default transmission speed is 9,600 bits/s, but higher speeds are recommended for better data throughput. All devices on the BACnet MS/TP network must communicate at the same transmission speed.
Available transmission speeds in bits/s: 9,600, 19,200, 38,400 and 76,800. Use DIP switches SW4 and SW5 to select the desired speed.The default transmission speed is 9,600 bit/s, as per the BACnet MS/TP standard. The transmission speed will be effective immediately after setting the values of the DIP switch.