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Download Excalibur 366 Specifications
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Defining Operating Parameters Table 5-16. Parameter Thresholds (Continued) Parameter Default Settings Signal Quality Good, 3 sec Resync Limit 2 times, 5 min Lost Communication Alarm Timer 60 sec Regained Communication Alarm Timer 600 sec RTS Antistreaming Timer Disabled, 50 sec DCD Antistreaming Timer Enabled, 50 sec DTE Power Fail Timer Disabled, 10 sec You can specify the amount of time the value of each line parameter can exceed its defined threshold before the DAP issues an alarm. The possible settings are 3, 5, 10, 15, 20, 43, 60, and 80 seconds The Excessive Resynchronizations parameter allows you to define the number of times, from 1 to 16, a unit or circuit can be resynchronized before it is reported as an alarm condition. You can specify the amount of time, from 5 minutes to 60 minutes in 5minute intervals, this condition can be active before the DAP issues an alarm. The alarm is only generated once even when multiple units are being resynchronized. A RTN (Return to Normal) function must be performed from the front panel before the alarm can be regenerated. (See "RTN Function" in Chapter 7 for instructions.) A Lost Communication alarm condition occurs when the central unit in a multiport/multidrop circuit loses communication with one of the remote units. This feature is only available when the service is set for DDSNI, the Location parameter is set to central, the Network parameter is set to mulipoint, and the Automatic Poll parameter is set to disabled. You can specify the amount of time, from 0 to 3900 seconds, this condition can be active before the DAP issues an alarm. The time period selected should be based on the number of units in the poll table since the number of polls to a given drop decreases as the number of drops increases. For example, a setting of 30 seconds for up to ten remote units in the poll table ensures that each unit receives three polls. The timer becomes inactive when the lost unit regains synchronization at which time a Regained Communication alarm condition occurs. You can specify the amount of time, from 0 to 3900 seconds, this condition can be active before the DAP issues an alarm. If a lost unit fails to regain synchronization, you can regenerate the alarm by performing a RTN (Return to Normal) function from the front panel of the central unit. (See "RTN Function" in Chapter 7 for instructions.) 5-55
