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Page 11 / 28 Scroll up to view Page 6 - 10
06
Gigabit Load Balance Broadband Router
Feet
Bottom of the
Device
Notch
Desktop Installation
Figure 2-1
Rack Installation
■
To install the device in an EIA standard-sized, 19-inch rack, follow the instructions
described below:
Check the grounding and stability of the rack.
1.
Secure the supplied rack-mounting brackets to each side of the device with supplied
2.
screws, as illustrated in the following figure.
Rack-
mounting
Bracket
Screw
Bracket Installation
Figure 2-2
After the brackets are attached to the device, use suitable screws (not provided± to
3.
secure the brackets to the rack, as illustrated in the following figure.
Rack
Rack Installation
Figure 2-3
Caution:
Please set 5~10cm gaps around the device for air circulation.
■
Please avoid any heavy thing placed on the device.
■
Please mount devices in sequence from the bottom to top of the rack and ensure a
■
certain clearance between devices for the purpose of heat dissipation.
Installation
Page 12 / 28
07
Gigabit Load Balance Broadband Router
Lightning Protection
Cha±ter 2
Cabling Reasonably
21²
In the actual network environment, you may need cable outdoors and indoors, and
the requirements for cabling outdoors and indoors are different. A reasonable cabling
system can decrease the damage of induced lightning to devices.
Note:
It’s not recommended using Ethernet cables outdoors. When cabling outdoors,
please use a signal lightning arrester.
Requirements for Cabling Outdoors
■
Aerial cabling without safeguard is not allowed.
■
It’s not allowed cabling down the building to connect network devices in different
■
floors.
Outdoor cables should be buried and paved to the indoor through basement. A piece
■
of steel wire should be paved underground along the pipe and connected to the
lightning protection terminal of the building for shielding. Before connecting the cable
to the device, install a signal lightning arrester on the corresponding port.
When an aerial cable is set up, the cable should be through a metal pipe (15m long
■
at least± before coming into the building. The two ends of this metal pipe should be
grounded. Before connecting the cable to the device, install a signal lightning arrester
on the corresponding port.
It’s not necessary to pave STP cables through pipes. The shielded layer of STP cable
■
should be well grounded. Before connecting the cable to the device, install a signal
lightning arrester on the corresponding port.
Requirements for Cabling Indoors
■
When cabling indoors, keep a certain distance away from the devices that may cause
high-frequency interferences, such as down-conductor cable, powerline, power
transformer and electromotor.
The main cable should be paved in the metal raceway of the access shaft. When
■
cabling, keep the loop area formed by the cable itself as small as possible.
Lightning Protection
Page 13 / 28
08
Gigabit Load Balance Broadband Router
Requirements for the distance between Ethernet cable and other pipelines are shown
■
in the table.
Other Pipelines
Ethernet Cable
Min Parallel Net Length L
(mm±
Min Parallel-overlapping Net
Height H (mm±
Down-conductor
1000
300
PE
50
20
Service pipe
150
20
Compressed air pipe
150
20
Thermal pipe (not wrapped±
500
500
Thermal pipe (wrapped±
300
300
Gas pipe
300
20
The two diagrams below demonstrate parallel net length and parallel-overlapping net
height.
Note:
The above minimum net length/height is required when metal raceway is not
used. If any requirements cannot be met, you can add a steel tube or metal raceway
for shielding.
Requirements for the distance between Ethernet cable and high-power electric
■
devices are in following tables.
Cable
Pave Way
Min Parallel
Length (mm±
<2kVA
powerline
Parallel cabling
130
One is in the grounded metal raceway or metal pipe
70
The both are in the grounded metal raceway or metal pipe
10
2~5kVA
powerline
Parallel cabling
300
One is in the grounded metal raceway or metal pipe
150
The both are in the grounded metal raceway or metal pipe
80
>5kVA
powerline
Parallel cabling
600
One is in the grounded metal raceway or metal pipe
300
The both are in the grounded metal raceway or metal pipe
150
Device
Min Distance (m±
Switch case
1.00
Transformer room
2.00
Elevator tower
2.00
Air-conditioner room
2.00
Lightning Protection
Page 14 / 28
09
Gigabit Load Balance Broadband Router
Connect to Ground
21³
Connecting the device to ground is to quickly release the lightning over-voltage and
over-current of the device, which is also a necessary measure to protect the body from
electric shock.
In different environments, the device may be grounded differently. The following
will instruct you to connect the device to the ground in two ways, connecting to the
grounding bar or connecting to the ground via the power cord. Please connect the
device to ground in the optimum way according to your specific operation environment.
Connecting to the Grounding Bar
■
If the device is installed in the Equipment Room, where a grounding bar is available,
you are recommended to connect the device to the grounding bar as shown in the
following figure.
Device (Rear Panel)
Ground Cable
Grounding Terminal
Grounding Bar
Connecting to the Grounding Bar
Figure 3-1
Note:
The grounding bar and the ground cable are not provided with our product. If
needed, please self purchase them.
Connecting to the Ground via the Power Supply
■
If the device is installed in the normal environment, the device can be grounded via the
PE (Protecting Earth± cable of the AC power supply as shown in the following figure.
Connecting to the Ground
Figure 3-2
Lightning Protection
Page 15 / 28
10
Gigabit Load Balance Broadband Router
Note:
The figure is to illustrate the application and principle. The power plug you get from
■
the package and the socket in your situation will comply with the regulation in your
country, so they may differ from the figure above.
If you intend to connect the device to the ground via the PE (Protecting Earth± cable
■
of AC power cord, please make sure the PE (Protecting Earth± cable in the electrical
outlet is well grounded in advance.
Equi±otential Bonding
212
Equipotential Bonding is the practice of intentionally electrically connecting all earthed
systems to the same grounding grid or connecting the grounding grids of all the
earthed systems together through the ground or overground metal so as to create
an earthed equipotential zone. When lightning occurs, the high voltage produced by
lightning current in all systems will meanwhile exist in their ground cables, and thus
all ground cables have the same electrical potential and basically eliminate the electric
strikes between the systems.
The figure bellow illustrates how to practice equipotential bonding in a network.
Grounding Terminal
Equipotential Bonding Cable
Grounding Bar
Ground Cable
Equipotential Bonding
Figure 3-3
When equipotential bonding, please note that the cable should be copper wrapped Kelly
with its area being 6mm
2
at least. The shorter cable the better, and use a grounding
bar to establish an equipotential bonding point.
Note:
The equipotential bonding cable is not provided with our product. If needed,
please self purchase it.
Lightning Protection

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