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Telos Zephyr Xstream Two-Way Radio User Manual

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USER’S MANUAL

Appendix 9 – Modular Cable Guide 339

Appendix 9: Modular Cable Guide 

Thisappendixisintendedtobeareferencetoolthatcoversvariousmodulartelephone‐style

connectorsusedwithyourXstream.

e

IMPORTANT!

Be very careful to label wiring using RJ- style connectors. In some cases, they have

power on them, and there is a risk of applying this power to something that does not

expect it. For this reason we suggest that you use different colored cables (or connector

boots) on the ISDN S interface cables versus your Desktop Director & Ethernet cables

PinNumberingonRJStyleJacks



Itisrecommendedpracticetoinstallmodularwalljackssuchthatthepinsareatthetopofthe

cavitywhenviewed.Thishelpstoprotectthecontactsfromwaterwhenbaseboardsare

mopped,andfromdust.Whenthejackisorientedinthisposition(i.e.lookingint

othejackwith

thecontactpinsatthetop)thepinsaresequentiallynumberedlefttoright.



Notethatsomejacksmaynothaveallpinpositionspopulated,howeverthenumberingwould

stillbeginwiththefirstposition.Forinstance,the"RJ‐11"stylejackisa6‐positi

on4‐pinjack.

Therefore,ithaspins2,3,4,&5.Pins1&6maybeabsent.Notethatallbutafewofthe

followingcablesuse8‐position8‐pinminiaturemodularconnectors(RJ‐45style)onbothends.

Intoday’srapidlychangingfacilities,itisworthconsideringusingauniversalsystemformostof

thesecables.Thisstrategyallowsthemostflexibili

tysincethesamewiringconfigurationcould

bereusedforadifferentpurposewithoutdoinganythingbutdocumentingthechange!



Therefore,werecommendthatyouusetheTIA/EIA‐568‐AT568Acablespecification.This

specifiesaCategory5(Cat.5)cablewith4pairswiredstraightthrough(bo

thendswired

identically)asfollows:

PIN COLOR

1 White/Green

2 Green

3 White/Orange

4 Blue

5 White/Blue

6 Orange

7 White/Brown

8 Brown

TIA/EIA‐568‐AT568Acolorcodes.Cat5cableIsusedandboth

endsareIdentical.Thecolorconductorofeachpairmayormay

nothaveawhitestripe.Theotherhalfofthepairmaybeeither

whiteorwhitewithacoloredstripe.Wewillusethiscolor

codinginourexamples.

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