7
Section 61104020L4-5, Issue 3
61104020L4-5C
3. TESTING
The U-BR1TE V responds to embedded operation
channel loopbacks, including B1, B2, and 2B+D, when
configured for D channel operation. When used in B1
configuration (non-D channel modes of operation) the
U-BR1TE V will respond to an in-band DS0 DP
latching loopback sequence. When remote testing is
not available, or during isolation of trouble or
equipment malfunction, the U-BR1TE V front panel
provides local test capabilities. Using the internal
2047 pseudorandom test pattern generator or the
bantam jacks allows craft personnel to test in both the
downstream and upstream directions, including
loopback for 6 addressable ISDN devices and the
customer’s NT1.
Table 2. Rotary Switch Options
yalpsiDnoitatrepretnI
1DAtinusihtfosserdda,1#sserddA
2DAyawatinumaertsnwodtxeneht,2#sserddA
3DAmaertsnwodtinudnoceseht,3#sserddA
4DAmaertsnwodtinudrihteht,4#sserddA
5DAmaertsnwodtinuhtruofeht,5#sserddA
6DAmaertsnwodtinuhtfifeht,6#sserddA
KBPLehtkcabpoolottinusihtsecrof,kcabpooL
niruccoskcabpooL.lennahc2Bro1Bdetceles
.snoitceridkrowtendnaremotsucehthtob
XTRCnoitceridreirracehtni,timsnartreirraC
XTPLnoitceridpoolehtni,timsnartpooL
1TN1TNehtfosserdda,1TN
edomSDDniUCOgnihctaL
Table 3. LED Indication
Loop Status (LP) ffO dnEraeNondnadehsilbatseneebsahnoitazinorhcnyspoolsetacidnI
.ecafretnipooLehtmorfdeviecergniebera)EBEN(srorrEkcolB
deR .langisfossolasahrocnysfotuosiecafretni-UnehwdetanimullI
wolleY ecnamrofrePlacoLgniruD.EBENafotpiecernopuwolleysehsalF
Testing
) will flash yellow when BER >10
-6
isees(gnirotinoM
01>REBanehwwolleyetanimullidnadetceted
5-
.detcetedsi
)RC(sutatSreirraCffO sah)793000-YST-RTrepgnimarf(noitazinorhcnysreirracsetacidnI
gniebera)EBEN(srorrEkcolBdnEraeNondnadehsilbatseneeb
.ecafretnireirraCehtmorfdeviecer
deR.deviecersinrettapgnimarfonnehwdetanimullI
wolleY ecnamrofrePlacoLgniruD.EBENafotpiecernopuwolleysehsalF
01>REBanehwhsalflliw)GNITSETees(gnirotinoM
6-
dnadetcetedsi
01>REBanehwwolleyetanimulli
5-
.detcetedsi
)TCA(noitavitcAneerGsahtnempiuqelanimretehttahtsetacidnI-noitacilppANDSI
.hctiwsNDSIehthtiwstibTCAdegnahcxe
.R-UCOnahtiwdetanimretsipoolsetacidnI-noitacilppASDD
gniebsitibTCAehttahtsetacidnidnocesrepecnO-noitacilppANDSI
.ylnonoitceridenonitnes
)TST(tseTwolleY
neerG
rodetaitiniyllufsseccusneebsahtsetlenaptnorfanehwwolleydiloS
.tseuqerkcabpoolD+B2aotgnidnopsernehw
1BaotgnidnopsernehwsdnocesowtyreveecnowolleysehsalF
tnorfehtmorfkcabpool1Baotnidecrofnehwrotseuqerkcabpool
.lenap
2BaotgnidnopsernehwsdnocesowtyreveeciwtwolleysehsalF
tnorfehtmorfkcabpool2Baotnidecrofnehwrotseuqerkcabpool
.lenap
lacolehtnehwrognirotinoMecnamroferPlacoLninehwneerGdiloS
.dekovnisited/negnrettaptset
)RRE(rorrEdeR .rotcetednrettaptsetlacolybneeserasrorrenehwdersehsalF
Indicator Color
Description
