The MODEL MN-1 Mini-Node Communication Signal Converter is a low cost device
that converts half duplex RS-485 serial communications signals into a signal that can
be read by any computer with a USB port. The integral USB connector and RJ-45
connector reduces set up time by eliminating extra wiring. The Model MN-1 is powered
via the USB connection which eliminates the need for an external power source. The
compact size is great for field installation, control panels, and lab testing.

SPECIFICATIONS
Power Requirements: No external power required.
Power Consumption: 0.4 W. Isolated Voltage: 3000 VDC. Input Impedance: 96 kΩ.
USB Connector: B-type (female).
RS-485 Connector: RJ-45.
Baud Rate: 75, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, and
115200 bps.
Compatibility: Full compliance with USB V.2.0 specification.

LED MODES
1. Green LED indicates unit is powered.
2. Yellow LED to indicate that data is being transferred.

USB DRIVER INSTALLATION
NOTE: Do NOT connect MN-1 to PC before extracting the driver fil

1. Insert the factory supplied CD into the CD drive of your computer. If the CD does not start
automatically,
click “Start”, “Run” & type D:/Drivers.exe then click “OK”.
2. Follow the on screen instructions to prepare for installation of the driver.
3. A folder marked SiLabs should now appear in the PC’s C drive.
4. Connect the MN-1 to PC.
5. The PC should automatically recognize that new hardware has been found. If not, add hardware can
be found un the control panel.
6. Follow on screen instructions for assigning USB driver to the MN-1.
7. Repeat steps 5 and 6 for assigning RS-485 Driver to the MN-1.
8. Open the system folder in the control panel.
9. Click on hardware tab.
10. Open the device manager.
11. Double click on ports.
12. Verify that USB to UART Bridge Controller appears.
13. The Driver installation is complete.

• The MODEL MN-1 Mini-Node Communication Signal Converter
• Specifications and Operating Instructions