4 – Setup & Configuration ACS-160 Series & STL-160 Series T1 Multiplexer Installation & Operation
Version 2.11, August 2011
Harris Corporation
4-23
Intraplex Products
Table 4-12. LRDN Group Menu Functions (continued)
Group
Item
Description
BACK
N/A
Displays the use of the backup line. If the indicator light is green (ON state),
the backup line is being used. If the light is red (OFF state), the primary line is
being used.
You can also use this item to manually generate a switch to the backup line by
momentarily toggling the SET/NEXT switch to the UP position.
SDLY
0 S
Line redundancy failure integration time of 0 seconds.
0.5
Line redundancy failure integration time of 0.5 seconds.
1 S
Factory default
Line redundancy failure integration time of 1 second.
10 S
Line redundancy failure integration time of 10 seconds.
Exit
Exit the SDLY sub-menu.
RDLY
10 S
Factory default
Line redundancy reversion switch delay of 10 seconds.
1min
Line redundancy reversion switch delay of 1 minute.
5min
Line redundancy reversion switch delay of 5 minutes.
Exit
Exit the RDLY sub-menu.
FAIL
(configure
on both
primary
and
backup
CMs)
LOS
On/Off
Factory default is on
Line failure criteria – Loss of signal (LOS) – Line failure is declared if receiving
LOS. Loss of signal is the absence of pulses lasting for one millisecond or
more.
OOF
On/Off
Factory default is on
Line failure criteria. Out of frame (OOF). Line failure is declared if receiving
OOF.
AIS
On/Off
Factory default is on
Line failure criteria. Alarm Indication Signal (AIS). Line failure is declared if
receiving AIS.
UAS
On/Off
Factory default is off
Line failure criteria based on an Unavailable Seconds (UAS) count. Line failure
is declared if line is in Unavailable Signal State (ten consecutive Severely
Errored Seconds). UAS is available in T1 ESF (Extended Superframe) only.
YEL
On/Off
Factory default is off
Line failure criteria, Yellow alarm (T1), Line failure is declared if receiving
Yellow alarm (T1).
Exit
Exit the FAIL sub-menu.
BER
(configure
on both
primary
and
backup
CMs)
Off
Factory default
Line failure criteria – Excessive Bit Error Rate. Line failure is declared if BER
exceeds user defined threshold.
10^3
1 x 10-3 Bit Error Rate (BER) threshold
10^4
1 x 10-4 Bit Error Rate (BER) threshold
10^5
1 x 10-5 Bit Error Rate (BER) threshold
10^6
1 x 10-6 Bit Error Rate (BER) threshold
Exit
Exit the BER sub-menu.
Summary of Contents for ACS-163
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