Ruijie Reyee RG-NBR-E Series Hardware Installation And Reference Guide

Hardware Installation and Reference Guide Preparations before Installation
13
2.2.1 Temperature/Humidity Requirements
To ensure normal operation and prolong the service life of the device, the equipment room must maintain
constant temperature and humidity. If the equipment room is overheated for a long time, the insulation materials
may result in defective insulation and even electric leakage. If the relative humidity is low, the insulation spacer
may result in dry shrinkage, which will make screws looser and easily generate static electricity in the dry
environment, thus damaging the interior circuits on the device. Excessively high temperature will accelerate the
aging of insulation materials and compromise the reliability and even service life of the device. The
temperature/humidity requirements are shown below (detailed difference between products is described in the
chapter of "Product Overview"):
Table 2-1 Temperature and Humidity Requirements of Ruijie RG-NBR-E Series Enterprise-class
Routers
Temperature
Relative Humidity
Long-term working
condition
Short-term working
condition
Long-term working
condition
Short-term working
condition
15ºC to 30ºC/ 59ºF
to 86ºF
0ºC to 45ºC/ 32ºF to
113ºF
40% to 65%
10% to 90%
Instruction
 The working temperature/humidity indicates the value measured at 1.5 m above the floor and 0.4 m
ahead of the equipment frame when there is no protection plate on the front and rear side of the
equipment frame.
 Short-term working condition refers to the continuous operation no exceeding 48 hours or accumulative
operations no exceeding 15 days in a year.
 Extremely harsh working environment generally refers to the ambient temperature and humidity which
may be encountered when the equipment room air-conditioning system fails but will recover in less than
5 hours every time.
2.2.2 Cleanliness Requirements
The dust is also a major threat to the safe operation of device. The dust accumulated on the device may cause
electrostatic adsorption and result in poor contact. It will not only compromise the service life of device but also
cause communication failure. When the indoor relative humidity is low, such electrostatic adsorption will incur
more easily.
Table 2-2 The Equipment Room Dust Content and Particle Size Requirements of Ruijie RG-NBR-E
Series Enterprise-class Routers
Maximum Diameter (μm)
0.5
1
3
5
Maximum Density (Particles/m3)
1.4 x 10
7
7 x 10
5
2.4 x 10
5
1.3 x 10
5
Apart from the dust, the device is also sensitive to the hydrochloric acid sulfide contained in the air. These
noxious gases will accelerate metal wastage and the aging of certain parts. The upper limits of noxious gases
(Sulfur dioxide, Sulfured hydrogen, Nitrogen dioxide, Ammonia and Chlorine) in the equipment room are shown
in Table 2-3:

Ruijie Reyee RG-NBR-E Series Specifications

General

Brand	Ruijie
Model	Reyee RG-NBR-E Series
Category	Network Router
Language	English