Apollo Xpander XPA-CB-14022-APO 시운전 매뉴얼 - 페이지 16

{카테고리_이름} Apollo Xpander XPA-CB-14022-APO에 대한 시운전 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Apollo Xpander XPA-CB-14022-APO 19 페이지. Diversity loop interface module
Apollo Xpander XPA-CB-14022-APO에 대해서도 마찬가지입니다: 시운전 매뉴얼 (14 페이지)

페이지 인쇄

Introduction

Radio waves have very different characteristics to wired links and it is necessary to ensure that every possible

source of attenuation of the radio signal is identified and fully considered in the design of the system.

It is therefore essential that a full site survey is carried out as part of the system design prior to any XPander

devices being installed. This preparatory work will ensure that good signal integrity is achieved.

The reliability of the data transmitted in the final system is determined by the site survey.

Site Survey Instructions

Turn on Surveyor Unit using the switch provided.

Position the Surveyor unit in the proposed location of the XPander Diversity interface.

• The minimum distance of metal objects from the interface is 400mm

• The minimum distance to other electrical equipment e.g. computers, photocopiers, fax machines

and other XPander interfaces is 2 metres (three dimensionally).

Switch on the hand held Surveyor Device.

Position the Surveyor Device where the XPander device is to be fitted. Ensuring that the button on the back of

the Surveyor Device is pressed against the surface where the device is to be fitted.

• The Surveyor Device will now report the strengths, dB readings and background levels.

At this point record all information on the Site Survey Sheet PP2322 and then move to the position of the next

device.

Surveyor Unit

Surveyor Device