Remote Los And Ais Response; Oct55 Test Pattern With Ami Line Code - ADC H4TU-C-388-L1 User Manual

Testing

Remote LOS and AIS Response

Figure 27 shows the different ways the H4TU-R can respond to the network, depending on the configuration of
the TLOS, NLBP, RDA, and ALMP configuration options described in
page 20.
Remove alarm
pattern
Standard Option
ADC 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 H4TU-C to report ES, SES, and UAS
errors according to ANSI T1.231-1997.
46
H4TU-R, DS1 Input
YES
LOS event?
NO
NO YES
AIS event?
Figure 27. H4TU-R LOS and AIS Response Priorities
AMI L
ATTERN WITH
September 12, 2003
Table 5 on page 19
AIS
NLBP
ENA
TLOS
DIS
DIS
RDA
ENA
LOS
ALMP
AIS
C
INE ODE
LTPH-UM-1122-02, Issue 2
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
H4TU-C-388 List 1