4.3 Device Debug4.3.1 Before DebuggingDebugging personnel shall be familiar with related materials, know device installation, wiringand usage.Debugging personnel check whether circuit has short circuit or open circuit or not. Make surecircuit is normal, plug device to power.After debugging end, clear up site (handle plugs, fix device and etc.)4.3.2 Debug DeviceStep 1. Plug device to power.Step 2. In homepage, long press Settings for 6 seconds. Device pops up PasswordVerification box.Step 3. Enter project setup password which is 888888 by default.Step 4. Press Net Set to connect VTH. Wireless:If the VTH supports WI-FI, you can select wireless connection.1. Select Wireless, open WLAN, view available WI-FI. See Figure 4-3.Figure 4-32. Select WI-FI you want to connect, and in pop-up WLAN connection window,enter WI-FI password.3. Press OK.