AirLink Communications Raven X HSDPA Guia do Utilizador descarregar pdf (Página 102)

Raven X HSDPA for Cingular - User Guide, version 2.33 97

Frequently Asked Questions and Technical Support

mounted antenna can be placed in locations where the simple, short dipole antenna connected

directly to the Raven X may not perform at all.

Your Raven X is designed to work either with DC (commonly used in vehicles) or with an AC

adapter (standard wall outlet in the US, Canada, and most other countries). The input voltage is

9VDC to 28VDC with an input current from 90mA to 350 mA.

If the modem is provided an inadequate power supply the following symptoms might be experi-

enced:

• Modem will constantly power cycle while attempting to register

• Modem will register but will power cycle when data is transmitted/received

• Modem won’t power on at all.

If these symptoms occur, verify the power supply meets the above mentioned criteria. If an AC

adapter is being used; verify it is intended for the AirLink product in question.

It is possible to use a portable battery for your AirLink modem, however, you most likely need to

make the connector from the battery to the modem yourself. The battery also needs to have enough

power to be able to handle the power consumption of the modem.

You can contact AirLink Support for a guide on how to use your AirLink modem with a portable

battery.

The Raven X’s IP Addresses and Local Networking

On Cingular’s network, for security reasons, some accounts set up to be restricted to communica-

tion only from other devices on their network, called a Restricted IP or a Private IP. If you had two

modems on Cingular’s network, they could communicate, but your computer, not using Cingular as

an ISP can’t. You could normally still access the Internet using your Raven X’s restricted or pri

vate IP because the modem would use a proxy or gateway on Cingular’s network.

Note: When using a cable with an antenna, there is a dB loss over the distance of

the cable. It is possible to lose the full gain of an antenna while using a long cable

to the modem.

What do I need to power my Raven X ?

Can I use a portable battery to power my Raven X ?

Why Can’t I reach my Raven X from the Internet? What is a Restricted or

Private IP?

However, if you need to be able to contact your Raven X (or the devices behind it) directly,

instead of a Restricted IP (also called Private IP Non-Routable IP), you will need to contact

Cingular your cellular provider to get your account changed to an Unrestricted IP (also called

Public IP).

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AirLink Communications Raven X HSDPA Guia do Utilizador Página 102