H3C ANT-2003CM User manual

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Contents
H3C ANT-2003CM antenna installation guide ········································································································ 1
Technical specifications····················································································································································1
Safety precautions·····························································································································································3
Installation guidelines ·······················································································································································3
Mounting the antenna ······················································································································································3
Tools and accessories required ······························································································································3
Mounting the antenna on a ceiling ························································································································4
Mounting the antenna on a wall ····························································································································5
Recommended cable················································································································································6

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H3C ANT-2003CM antenna installation guide
Technical specifications
The ANT-2003CM antenna is designed for use in indoor environments. It is connected to the 2.4-GHz
antenna port on an H3C indoor AP through an SMA-type connector.
Figure 1 Antenna view
Table 1 Technical specifications
Antenna type ANT-2003CM
Operating frequency range 2400 MHz to 2500 MHz
Bandwidth 100 MHz
Peak gain 3 dBi
Front to Back Ratio (dB) ≥NA
Horizontal beamwidth 360 degrees
Vertical beamwidth 60 to 80 degrees
Voltage standing wave ratio (VSWR) ≤1.5
Impedance 50 Ω
Polarization type Vertical
Max. power 10 W
Connector SMA-Female
Third Order Intermodulation (dBm) N/A
Lightning protection DC grounding
Dimensions 44 × 28 × 2 mm (1.73 × 1.10 × 0.08 in)
Weight 0.006 kg (0.01 lb)
Operating temperature –40°C to +60°C (–40°F to +140°F)
Mast diameter (mm) N/A

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Wind resistance (km/h) N/A
Installation Ceiling mounting or wall mounting
Figure 2 and Figure 3 show the horizontal and vertical radiation patterns.
Figure 2 Horizontal pattern
Figure 3 Vertical pattern

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Safety precautions
W
ARNING!
•Installing antennas is dangerous. For your safety, follow the installation directions.
•Keep the antenna away from power source, street lamps, distribution box, or other places that may
cause electrical shock.
•Do not touch any power lines for your safety.
•Keep safety in mind when you select your installation site. Keep the antenna away from electric
power lines and other lines.
•Do not work alone when you install the antenna.
•If you need to raise the mast, work with other people to avoid bodily injury.
•Do not use a metal ladder. Do not work on a wet or windy day. Dress properly, for example, shoes
with rubber soles. Wear rubber gloves.
•If the antenna, antenna cable, or any other installation accessory drops, get away from it to avoid
bodily injury.
•If an accident, for example, electrical shock, occurs with the power lines, immediately call for
qualified emergency help.
Installation guidelines
Keep the antenna away from metal obstructions such as heating and air-conditioning ducts. Typically, the
higher an antenna is above the ground, the better it performs. If possible, use a cable as short as possible
to connect the antenna and AP.
Mounting the antenna
You can mount the ANT-2003CM antenna on a ceiling or on a wall. The installation accessories are
provided (installation tools are user supplied). If you intend to mount your antenna on another surface,
you must provide the appropriate installation accessories.
Tools and accessories required
•Accessories provided with the antenna:
{Two wall anchors
{Two screws
{Two curved spring washers
{One cable
{Two bolts
•User-supplied tools:
{One Phillips screwdriver
{One electric drill and associated drill bits
{One pencil

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Mounting the antenna on a ceiling
1. Use a pencil to mark the screw positions on the ceiling where you want to mount the antenna and
then drill three holes in the ceiling. See Figure 4.
Figure 4 Drilling holes in the ceiling
2. Thread the antenna cable connector and bolts through the three holes you drilled in step 1 until the
base of the antenna is flush with the ceiling. See Figure 5.
Figure 5 Mounting the antenna
3. From above the ceiling, thread the supplied spring washers through the bolts and fasten them until
the antenna is secured in place. See Figure 6.

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Figure 6 Securing the antenna
Mounting the antenna on a wall
1. Use a pencil to mark screw positions on the wall where you want to mount the antenna and then
drill three holes in the wall. See Figure 7.
Figure 7 Drilling holes in the wall
2. Thread the wall anchors through the two 7 mm (0.28 in) holes in the wall and thread the screws
through the corresponding holes in the antenna. See Figure 8.

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Figure 8 Mounting the antenna
3. Insert the expansion screws into the two wall anchors and fasten them until the antenna is secured
in place. See Figure 9.
Figure 9 Securing the antenna
Recommended cable
H3C recommends that you use a high-quality, low-loss cable with the antenna. Coaxial cable loses
efficiency as the frequency increases, causing signal loss. Keep the cable as short as possible because
cable length also causes signal loss (the longer the run, the greater the loss).