For the cable 
connection method 
for the TN-C system, 
see the user manual.
Scenario 2: Routing Cables from the Bottom
1. Remove the cover from the power 
distribution subrack.
2. Remove the copper  bars between mains 
input terminals and bypass input terminals.
3. Remove small covers from the bottom 
based on site requirements.
4. Connect power cables.
For the screw specifications and torque  used 
for connecting cables  in a bottom cable 
routing scenario, refer to the top cable 
routing scenario. This section only shows the 
cable routes in the bottom  cable routing 
scenario.
5. Connect signal cables.
The number and color of signal cables in 
the figure are for reference  only. Signal 
cables can be routed along the left or 
right side of the cabinet. Route signal 
cables based on the actual situation.