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ACCULINK 3163 DSU/CSU
C-18 March 1999 3163-A2-GB20-10
Table C-7
(2 of 2)
Alarm Configuration Options
AltDialDir: None
Next None 1 2 3 4 5 Prev
Alternate Dial-Out Directory for Alarm. Specifies whether a call that cannot be completed (busy, no answer, etc.) is retried
using an alternate phone number. This affects calls that are initiated in an attempt to send an alarm message to the
modem port or carrier external communication port device. The alternate phone number to try is contained in one of the
five call directories. If call retry is enabled, the initial call is retried at the original number once before a call attempt to the
alternate number is tried. If the call is not completed at the alternate number, it too is retried once. The alternate dial-out
option applies to each alarm event. Once a call for an alarm message either completes or fails all retry attempts, the next
alarm attempts to establish a call to the phone number contained in the alarm directory.
None – Specifies that alternate alarm dial-out is not performed if a call cannot be completed to the telephone number
contained in the alarm directory.
1–5 – Specifies the call directory that contains the phone number to call if a call cannot be completed to the telephone
number contained in the alarm directory.
Err Rate: 10E-4
Next 10E-4 10E-5 10E-6 10E-7 10E-8 10E-9 Prev
Excessive Error Rate Threshold. Sets the error rate threshold that determines if an Excessive Error Rate (EER) condition
is declared. This rate is determined by the ratio of the number of CRC6 errors to the total number of bits received over a
set period of time.
Select from the following:
10E-4 – EER is declared if more than 1,535 CRC6 errors are detected within 10 seconds (factory default).
10E-5 – EER is declared if more than 921 CRC6 errors are detected within 60 seconds.
10E-6 – EER is declared if more than 92 CRC6 errors are detected within 60 seconds.
10E-7 – EER is declared if more than 9 CRC6 errors are detected within 60 seconds.
10E-8 – EER is declared if more than 41 CRC6 errors are detected in three 15-minute intervals.
10E-9 – EER is declared if more than 4 CRC6 errors are detected in three 15-minute intervals.