Ruijie Reyee RG-EST450G Installation Manual page 17

Installation Guide
Bridge Type
2.2.2 Surge Protection

When the connection cable between the main grounding conductor and local equipotential earthing terminal
board (LEB) on each floor is short, use a stranded copper wire with a sectional area not less than 1.318 mm2
(16 AWG) for the connection cable.

Use a shielded network cable if possible. Ensure that devices connected to both ends of the shielded network
cable are reliably grounded, and that the sheath of the shielded network cable is also grounded if possible.
If no shielded network cable is available, wire the network cable through a steel pipe and bury the steel pipe
for lead-in, and properly ground both ends of the steel pipe.

The device has a built-in high-grade surge arrester with a 6KV surge protection capability. Generally,
additional surge arrester is not required. If a higher surge protection level is required, a surge arrester can
be installed and must be grounded.
2.2.3 Temperature and Humidity
To ensure the normal operation and prolonged service life of the device, maintain an appropriate temperature
and humidity in the equipment room. The equipment room with too high or too low temperature and humidity for
a long period may damage the device.

In an environment with high humidity, the insulating material may have bad insulation or even leak electricity
and sometimes the materials may suffer from mechanical performance change and metallic parts may get
rusted.

In an environment with low humidity, the insulating strip may dry and shrink, and static electricity is prone to
occur and damage the internal circuits of the device.

In an environment with high temperature, the device is subjected to even greater harm, as its performance
may degrade significantly and its useful life may be shortened in the case of long-term exposure that
expedites the aging process.
Table 2-1 Temperature and Humidity Requirements
Operating Temperature
–30° C to 65° C (–22° F to +149° F)
2.2.4 Anti-Interference

Take interference prevention measures for the power supply system.

Keep the device away from the grounding facility or lightning and grounding facility of the power device as
much as possible.

Keep the device away from high-power radio stations, radar stations, and high-frequency high-current
Distance Between Base Station
and Customer Premises
Equipment (CPE)
500 m (1640.42 ft.)
Operating Humidity
5% RH to 95% RH (non-condensing)
11
Preparing for Installation
Recommended Installation
Height (Above the Obstacle)
4 m (13.12 ft.)