- 12 -
180mm
Use M3 screws to fix on the wall
140mm
SW6
SW5
SW7
SW8
SW11
SW9
SW4
SW3
SW12
DSW3
DSW2
LED9
LED8
LED7
LED10
LED5
LED6
SEG1
SEG2
Figure 2.5 Position and size of the screw holes
2.3 Wiring connection method
Please read carefully before construction.
●
Place where the [Preface] of this installation instruction manual describes.
●
Carry out wiring construction according to relevant national electrical equipment and construction standards as well as the
guidance of electric power companies.
●
When it is used below 300V power supply voltage, there’s obligation to do D class grounding construction (grounding
resistance below 100
Ω
), when used above 300V low voltage circuit, there’s obligation to do C class grounding construction
(grounding resistance below 10
Ω
).
●
Communication line should be as shorter as possible, more than 150mm away from power line, do not be parallel with the
power line (can cross). In any case, when parallel construction is required, please put the communication line or power line
into the metal tube (one end has ground contact); or communication line adopts shielded wire and other anti-disturbance
measures.
●
Please do not implement internal change of the product. Otherwise, it may cause failure.
2 Installation construction