Cisco 3G MicroCell Panduan Pengguna - Halaman 17

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Antenna Descriptions

The MicroCell has one antenna for cellular signals and another for GPS signals. If GPS signal strength is too low, a port for

connecting the GPS antenna extension is also available.

Cellular Antenna

The cellular antenna is mounted inside the MicroCell enclosure and is for transceiving cellular traffic with registered 3G

devices. The maximum range of the MicroCell is approximately 5000 square feet. Actual range will vary depending on the

density of obstructions in the vicinity.

GPS Antenna

The GPS antenna is mounted inside the MicroCell enclosure and is for receiving GPS signals. It cannot be adjusted, but has

enough gain in most instances to detect signals in any room with a window.

If the MicroCell cannot acquire a location fix (indicated by a flashing GPS status indicator), see Troubleshooting on page 15.

Another option is to install the GPS antenna extension (see below).

GPS Antenna Extension

The GPS antenna extension is a lengthy cable with a GPS antenna element on one end. This device is useful when there is

no practical way to move the MicroCell close to a window.

GPS Antenna Extension Installation

• Plug one end of the GPS antenna extension

connector to the round connector marked

Antenna on the MicroCell and place the

other end as close as possible to the

nearest window with unobstructed access

to the sky.

• Recycle power on the MicroCell.

• If the extension is successful, the GPS status

indicator will turn to steady green, which

can take up to 20 minutes. You must then

allow authentication to continue until the

3G status indicator turns to steady green.

• Leave the GPS antenna extension installed,

if possible. If not, then disconnect the

device and store it nearby; it may be

necessary to reinstall the GPS antenna

extender if the MicroCell has to reacquire

the location fix.

If this procedure fails, contact Customer

Support at 800.331.0500 for assistance.

Pressing the Reset button restores the MicroCell to its factory default settings. Do not press this button unless you

have been asked to by Customer Support.

4030453_RevA_6.75x8.25_Mar6.indd 17

AT&T 3G

MicroCell

™

Antenna

Computer

Ethernet

Reset

Button

Power

GPS Antenna

Extension

T14083

3/6/2009 5:43:35 PM