Alarm Option For Digital Loop Carrier (Dlc) Feed; Remote Los And Ais Response - ADC HiGain H2TU-C-202 Manual

Testing

Alarm Option for Digital Loop Carrier (DLC) Feed

To improve HiGain HDSL2 compatibility with the switch-to-protect features used in DLC feeder applications, the
H2TU-C-202 has an Alarm Pattern (ALMP) option that allows you to select either an AIS or LOS DS1 output
payload for the following alarms:
• LOSW on any loop
• DS1 LOS

Remote LOS and AIS Response

Figure 28 shows the different ways the H2TU-R can respond to the network, depending on the configuration of
the TLOS, NLBP, FT1, ALMP, and NAIS configuration options described in
page 17. See Table 13 on page 23
Remove alarm
pattern
ADC Option
HDSL2 Standard Option
Default configurations
are shown in boldface
type.
44
for response of the H2TU-C and H2TU-R to LOS and AIS alarm conditions.
YES
LOS event?
NO
[DIS]
NO YES
AIS event?
[DIS]
[AIS]
Figure 28. H2TU-R LOS and AIS Response Priorities
February 28, 2001
[ENA]
TLOS
NLBP
[AIS]
[ENA]
FT1
[LOS]
ALMP
[AIS]
NAIS
[CI]
LTPH-TP-1005-02, Issue 2
Table 5 on page 16 and Table 6 on
Loopback to Network
[LOS]
LOS to CPE
AIS to CPE
FT1 idle to NET & CPE
Pass on LOS to NET
Send AIS to NET
Send AIS-CI to NET
H2TU-C-202 List 3E