Support User Manuals

Telos Zephyr Xstream Two-Way Radio User Manual

Open as PDF

of 381

USER’S MANUAL

Appendix 9 – Modular Cable Guide 341

ThisspecialEthernet"crossover"cableisusedwhentwo

computers(oracomputerandanotherdevicesuchasaZephyr

Xstream)needtobeconnectedwithoutusinganEthernethub.

ISDNUinterfaceCablePin‐out

TheUinterface,specifiedintheUSA&Canada,isspecifiedbetweentheTelcoandtheuser‐

providedNT1.TheUinterfaceisarobustinterfacemeantforuseonexistingTelcocopperplant.

Itisasinglecopperpair.Itisprovidedonthecen

terpairofeithera6‐position4‐pinminiature

modularjacks(RJ‐11style)ora8‐position8‐pinminiaturejack(RJ‐45style).Thestandards

specifythecompatibilitybetweenthe6‐positionplugand8‐positionjacksoeithercanbeused.

Forthisreason,wepreferthe6‐positionconne

ctorsoncables,astheywillworkwitheither

typeofreceptacle.

ISDNUinterfacecable(typical)

PIN FUNCTION PIN

1 Not Present 6

2 No Connection 5

3 Line (R) 4

4 Line (T) 3

5 No Connection 2

6 Not Present 1

TypicalISDNUinterfacecable.Thisisidenticaltoa

POTStelephonecord.Polarityshouldnotmatter,soa

straightthroughcableisalsoacceptable.



ISDNUinterfaceconnector(USA&Canadaonly)

PIN FUNCTION

1 No Connection

2 No Connection

3 Line (R)

4 Line (T)

5 No Connection

6 No Connection

ISDNUinterfaceconnector.Note,thepolarityoftheline

connectionsshouldnotmatter.



previous next