Verilink Access Manager 2000 (896-502037-001) Product Manual - Manual (Page 189)

Configuration Options for 551VST Elements
Access Manager 2000 User Manual 5 -65
Table 5-8 Older CSU Circuit Elements BER Alarm Rest Time
Table 5-9 Newer CSU Circuit Elements BER Alarm Reset Time
The longer BER alarm reset times reduce the number of BER alarms reported to
Access Manager.
The repeater loopback time-out is the time period after which the repeater
loopback (RLB) automatically releases. It has a default value of 300
seconds(5 minutes).
An RLB loops the CSU transmit-side output towards the equipment
(EQP) through the CSU repeater and disconnects the incoming signal
from the NET. Without this time-out, there would be no ESF Data Link
access path to the CSU from the far-end to tell the CSU to drop the
loopback. The RLB time-out therefore drops the loopback after the time-
out period has elapsed.
Applicable equipment: BER Threshold Alarm Reset
• 551VST List 1/A, all revisions
• 551VST List 1/B BER alarm, all
revisions
• 4016 List 1, all revisions
• 4016 List 2, firmware revision 2.2
or earlier
• 4016-R, firmware revision 2.4 o
earlie
• 551VST List 2, firmware revision
2.1 or earlie
10 -4 4 seconds
10 -5 4 seconds
10 -6 10 seconds
10 -7 70 seconds
10 -8 70 seconds
10
-9
660 seconds
Applicable equipment: BER Threshold Alarm Reset Times
• 4016 List 2, firmware revision 2.3
or later
• 4016-R, firmware revision 2.5 or
later
• 551VST List 2, firmware revision
2.2 or later
10 -4 97 -194 seconds
10
-5
97 -194 seconds
10
-6
97 -194 seconds
10 -7 97 -194 seconds
10
-8
453 - 906 seconds
10 -9 647 - 1,294 seconds
Repeate
Loopback Time-
out