Arctica 4804iq Series switch Installation Guide Chapter 2 Installation Notice
continued operation and an annual cumulative total of less than 15 days. Formidable
operation conditions refers to the ambient temperature and relative humidity value that
may occur during an air-conditioning system failure, and normal operation conditions
should be recovered within 5 hours.
2.1.3.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 supplying. .
Caution!
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!
2.1.4.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.
2.1.5.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 grounding, rather than sharing the grounding
with the electronic equipment or lightning protection devices;
■
Keep away from high power radio transmitters, radar transmitters, and high
frequency strong circuit devices;
