Installation Manual

Fixed Wireless Terminal Description – continued

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Fixed Wireless Terminal Description and Installation

A detachable omni–directional antenna is mounted to the rear of the

FWT housing. In fringe coverage areas, an outdoor omni–directional

antenna or a directional gain antenna may be substituted. If the antenna

is mounted outdoors, precautions must be taken to adequately protect

against lightning.

Power to operate the FWT is provided via a wall transformer to the 12

volt DC socket. Alternative power, such as external battery, solar

powered sources, etc. feeds into an auxiliary power input socket. An

optional internal battery provides operational backup in the event of

primary power loss. This battery may be replaced without accessing the

internal circuit board.

Brackets are available for remote antenna installations and for optional

security mounting.

Capabilities

The FWT provides a subscriber loop interface and translates subscriber

loop interface functions into CDMA air interface functions.

The FWT provides standard electrical voltages and currents to support a

POTS line. The FWT will generate call–progress indications to the

subscriber’s telephone set. The FWT also passes call–progress tones

from the PSTN in the audio band. Call signaling (such as DTMF

dialing) is typically encoded as CDMA air interface messages.

The FWT supports hand–off to allow the system to “breathe,” thus

providing extra capacity in high traffic areas at the necessary times.

Hand–off may or may not be supported by the provider’s

system.

NOTE

Voice quality is based on one of three (system–operator selected)

vocoder algorithms – 8 Kbps, 13 Kbps, or the Enhanced Variable Rate

Coder (EVRC). Security of the voice is inherent in the CDMA air

protocol.

The FWT supports operator programming to create tiered personalities

which define the features supported. The personality may be

downloaded either locally or remotely to allow changes to the subscribed

service profile.

The FWT initially supports local download of operational software using

the FWT Programmer software and a personal computer.

FWT features

The FWT offers the following features:

 Call progress tones, such as Dial Tone and Busy Tone

 DTMF and pulse dial capability

 Two–way DTMF send and receive capability

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