2. Preparation
A) Download the Hoymiles mobile installer App
B) Check the box for the following items:
✓Hoymiles DTU-Pro
✓Two Antennas
✓Adapter
✓Bracket
✓5 Pin Plug
C) Choose the way DTU-Pro connect to the Internet: Use GPRS or Ethernet. Please
prepare the following items if needed:
➢SIM Card (if choose GPRS option)
➢Router Ethernet Cable (if choose Ethernet option)
➢Smart Phone/Tablet with Hoymiles Installer App (if choose Ethernet option)
3. Installation
A) Take 2.4G antenna and GSM antenna out from the box, and screw the antenna into the
GPRS port and 2.4G port.
B) If choose GPRS, insert the SIM Card into the SIM Card slot on the side of DTU, press
the SIM card in until you heard the “click“.
C) Choose an Installation Location
➢Installed on the top floor to increase the signal strength
➢Installed near the center of the PV array
➢Installed at least 0.5m above the ground and more than 0.8m away from the
corner
Note: Please do not install the DTU direct above the metal or concrete to prevent the
signal dilution.
D) Choose the Installation Method
Option 1: Mount the DTU on the wall
➢Screw the bracket on the wall, please choose at least two screw holes (one from
each side) to fix the bracket (the M4 screws need to prepare by installer);
➢Match the bracket’s upper buckle with DTU-Pro;
