Remote Los And Ais Response; Oct55 Test Pattern With Ami Line Code; H2Tu-R Los And Ais Response Priorities - ADC HiGain H2TU-C-231 User Manual

Testing

Remote LOS and AIS Response

Figure 26 shows the different ways the H2TU-R can respond to the network, depending on the configuration of
the NLBP, TLOS, RDA, and ALMP configuration options described in
page 18.
Remove alarm
pattern
ADC Option
HDSL2 Standard Option
Default configurations are in bold.
OCT55 T P
EST
The OCT55 test pattern can be used in unframed mode to stress the system and verify data integrity. In an SF or
ESF framing mode, excessive zero anomalies may occur which cause the H2TU-C to report ES, SES, and UAS
errors according to ANSI T1.231-1997.
42
H2TU-R, DS1 Input
YES
LOS event?
NO
NO YES
AIS event?
Figure 26. H2TU-R LOS and AIS Response Priorities
AMI L
ATTERN WITH
January 9, 2002
Table 5 on page 17
AIS
NLBP
ENA
TLOS
DIS
DIS
RDA
ENA
LOS
ALMP
AIS
C
INE ODE
LTPH-UM-1109-01, Issue 1
and Table 6 on
AIS to CPE
LOS to CPE
LOS
Loopback to Network
Pass on LOS to
Network, no alarm
report
Pass on LOS to
Network
AIS to Network
H2TU-C-231 List 2