SSE-C3632S/SR Switch Installation Guide
Page 27
Power Supply
Before powering on the power supply, please check the power input to ensure proper grounding of the
power supply system. The input source for the switch should be reliable and secure; a voltage adaptor
can be used if necessary. The building’s circuit protection system should include in the circuit a fuse or
circuit-breaker of no greater than 240 V, 5A. It is recommended to use a UPS for more reliable power
supply.
Cautions:
1.
Improper power supply system grounding, extreme fluctuation of the input source, and
transients (or spikes) can result in larger error rate, or even hardware damage!
2.
Disconnect power supply cords before servicing!
Preventing Electrostatic Discharge Damage
Static electric discharges can cause damage to internal circuits, even the entire switch. Follow these
guidelines for avoiding ESD damage:
•
Ensure proper earth grounding of the device;
•
Perform regular cleaning to reduce dust;
•
Maintain proper temperature and humidity;
•
Always wear an ESD wrist strap and antistatic uniform when in contact with circuit boards.
Anti-interference
All sources of interference, whether from the device/system itself or the outside environment, will affect
operations in various ways, such as capacitive coupling, inductive coupling, electromagnetic radiation,
common impedance (including the grounding system) and cables/lines (power cables, signal lines, and
output lines). The following should be noted:
•
Precautions should be taken to prevent power source interruptions;
•
Provide the system with a dedicated ground, rather than sharing the grounding with other
electronic equipment or lightning protection devices;
•
Keep away from high power radio transmitters, radar transmitters, and high frequency
strong circuit devices;
•
Provide electromagnetic shielding if necessary.
