Support User Manuals

Telos Zephyr Xstream Two-Way Radio User Manual

Open as PDF

of 381

USER’S MANUAL

Appendix 10 – Glossary 363

UInterfaceTheinterfacebetweentheISDN“BRI”lineandthe“NT1”.Thiscanbeconsidered

theISDN“phonejack”intheUSA&Canada,andisfrequentlyintheformofaRJ‐11orRJ‐45

styletelephonejack.Thecenter2pinsareusedonthesejacks.

V.35Aserialdatain

terface/connectorpinoutforsynchronousdata.V.35usesbalancedsignal

anddatalines.TheZephyr/ZephyrXstreammodels9X01,9X00,supportV.35usingpart#9812

cable.

VariantTheparticularprotocol(i.e.NationalISDN‐1orETS300)runningonaspecificswitch.

Notallvariantsarevalidforaspecifics

witch.Theswitchbrandandmodelplusthevariant

definestheISNDprotocol.Appliestoconfiguringthe2101.SeeISDNProtocol.

VirtualISDNAnalternativetorepeaterswhichusesalocalTelcoSwitchtoactasarepeaterand

whichthensendsthesignalontoanotherswitchwhichsupportsIS

DN.SeealsoRepeater.

WorkOrderSeeTroubleTicket

X.21AserialdatainterfaceforsynchronousdatapopularinEurope.X.21usesbalanceddata

andunbalancedsignallines.TheZephyrmodels9X01,and9X00supportX.21usingpart#9822

cable.

YellowAlarmAnalarmonaT‐carriercircuitthatisre

turnedbythelocalequipmentifitisina

RedAlarmstate.ARedAlarmindicatesalossofinboundsignal;aYellowalarmindicates

(indirectly)alossofoutboundsignal.SeeRedAlarm,BlueAlarmandLOS.



previous next