Amer Networks SS2GR50I Guide d'installation télécharger pdf (Page 15)

Installation Guide

2-3

air-conditioning system failure, and normal operation conditions should be recovered

within 5 hours.

2.1.1.3 Power Supply

The power input parameters for the switch is shown as below:

AC input: 100~240VAC

Frequency: 50~60H

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 240V, 10A.

It is recommended to use a UPS for more reliable power supplying.

Caution

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!

2.1.1.4 Preventing Electrostatic Discharge Damage

Static electric discharges can cause damage to internal circuits, even the entire switch.

Follow these guidelines for avoiding ESD damage:

z Ensure proper earth grounding of the device;

z Perform regular cleaning to reduce dust;

z Maintain proper temperature and humidity;

z Always wear an ESD wrist strap and antistatic uniform when dealing with circuit

boards.

2.1.1.5 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.

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Amer Networks SS2GR50I Guide d'installation Page 15