Ruijie RG-S7808C Series Hardware Installation And Reference Manual page 32

Be sure that the square hold strip is at least 125 mm far from the outboard front door and the door is at most 25 mm
thick to ensure a minimum available distance of 100 mm. The front door is at least 500 mm far from the back door,
Figure 2-3 Cabinet Dimensions
Be sure that the slide rail in the cabinet is enough to bear the weight of a RG-S7808C and its installation
accessories.
Be sure that the cabinet provides an earthing terminal for the switch to be grounded.
Be sure that the front and back doors of the cabinet have porosities greater than 50% for good ventilation and heat
dissipation.