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Telos Zephyr Xstream Two-Way Radio User Manual

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USER’S MANUAL

Section 4: BASIC OPERATION & INSTALLATION 60

Itisessentialthatthethird“grounding”pinnotbedefeatedonthepowercordandthatthe

powercordbeconnectedtoaproperlygroundedreceptacle.Ifagroundedreceptacleisnot

available,aqualifiedelectricalcontractor,familiarwiththeregulationsinyourarea,shouldbe

contractedtoprovideone.

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IMPORTANT!

As with any piece of modern electronic gear, it is advisable that precautions be taken to

prevent damage caused by power surges. Standard line surge protectors can be used to

offer some degree of protection. It is the user’s responsibility to ensure protection

adequate for their conditions is provided (see above).

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WARNING!

This equipment is designed to be operated from a power source that includes a third

“grounding” connection in addition to the power leads.

Do not defeat this safety feature. In addition to creating a potentially hazardous situation,

defeating this safety ground will prevent the internal line noise filter from functioning.

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IMPORTANT SAFETY INFORMATION!

If fuse replacement is required, please note: For continued protection

against fire, replace fuse only with same type and value. See the DETAILED

TECHNICAL INFORMATION section for information and cautions.

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ISDN Lightning Protection

ThesinglebiggestsourceoffailuresofTelecomequipmentisduetodamagerelatedto

lightning.Somefailuresarecatastrophicfailures,whilesomeareduetothecumulativedamage

thatcanoccuroverthecourseofseveralyears.Forthisreason,wealsorecommendthatin

additiontoAC(mains)powerprote

ction(seeabove),thataqualitytelephonelines‐stagesurge

protectorbeemployedatthebackpaneloftheZephyrXstream.Thegroundterminalofthis

deviceshouldbeconnecteddirectlytotheZephyrXstreamchassis,andtheprotectorconnected

totheXstream’sISDNInterfacejackwithasshortacableaspossible(un

der8inches).This

approachisparticularlywellsuitedtosituationswhereyouexpectnearbystrikes,suchaswhen

youarelocatednearatower.

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