User's Manual
Table Of Contents
4-inch Visible Light Terminal
User Manual
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1 Safety Measures
The following precautions are to keep the user’s safety and prevent any damage. Please read
carefully before installation.
1. Read, follow, and retain instructions - All safety and operational instructions must be properly
read and followed before bringing the device into service.
2. Do not ignore warnings - Adhere to all warnings on the unit and in the operating instructions.
3. Accessories - Use only manufacturer-recommended or product-sold accessories. Accessories not
recommended by the manufacturer must not be used.
4. Precautions for the installation – Do not place this device on an unstable stand or frame. It may
fall and cause serious injury to persons and damage to the device.
5. Service - Do not try to service this unit yourself. Opening or removing covers may expose you to
hazardous voltages or other hazards.
6. Damage requiring service - Disconnect the system from the main AC or DC power source and
refer service personnel under the following conditions:
• When cord or connection control is affected.
• When the liquid was spilled, or an item dropped into the system.
• If exposed to water and/or inclement weather (rain, snow, and more).
• If the system is not operating normally under operating instructions.
Just change controls defined in operating instructions. Improper adjustment of other controls may
result in damage and involve a qualified technician to return the device to normal operation.
7. Replacement parts - When replacement parts are needed, service technicians must only use
replacement parts provided by the supplier. Unauthorized substitutes can result in a burn, shock,
or other hazards.
8. Safety check - On completion of service or repair work on the unit, ask the service technician to
perform safety checks to ensure proper operation of the unit.
9. Power sources - Operate the system only from the label's power source form. If the sort of power
supply to use is unclear, call your dealer.
10. Lightning - External lightning conductors can be installed to protect against electrical storms. It
stops power-ups destroying the system.
The devices should be installed in areas with limited access.