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Each event is routed through the phone to the central station one of four ways:
1.
PHONE 1 Only:
Only uses Phone Number 1.
2.
PHONE 2 Only:
Only uses Phone Number 2.
3.
PHON 1 AND 2:
Uses both Phone Number 1 and Phone Number 2.
4.
PHN 2 BACKUP:
Primarily uses Phone Number 1 with Phone Number 2 as a backup when communication
cannot be established with Phone Number 1. PHN 2 BACKUP is the default setting for the D9068P.
Refer to
Appendix D
on page 50 for more information about report steering.
4.1.5 Call
Attempts
When an event must be communicated to the central station, the D9068P makes up to ten attempts to
communicate with the central station until the call is answered.
Table 4
on page 19 shows the procedure the D9068P follows in attempting to communicate with the central station
when it is programmed to use Phone 2 Backup (default) or Phones 1 and 2.
4.1.6 Communication
Fault
When a report must be transmitted to the central station, the D9068P makes up to ten attempts to communicate
(refer to
Table 4
). If after ten attempts the D9068P does not connect successfully, a communication failure occurs
and a Comm Fault Report is generated. Then, the D9068P makes up to ten attempts to communicate the Comm
Fault to the central station. If the D9068P does not succeed, the original report and the Comm Fault Report clear
from the D9068P’s buffer.
The total time from the first sequence of attempts to a communications failure is approximately 15 min. This time
varies depending on how Ack Wait time is programmed. A Comm Fault Restoral Report transmits when
communication restores after a communications failure.
4.1.7 Programming
Fault
Programming faults indicate if specific telephone programming items are not completed.
A programming fault generates when:
•
Both account numbers are not changed from their default values of 0000.
•
No telephone number is programmed.
•
A report is routed to Phone Number 1 and either Account Number 1 is 0000 or Phone Number 1 is invalid.
•
A report is routed to Phone Number 2 and either Account Number 2 is 0000 or Phone Number 2 is invalid.
•
A report is routed to Phone Numbers 1 and 2 or to Phone 1 with Phone 2 as backup. At least one of the
account numbers is 0000 or one of the telephone numbers is invalid.
4.1.8 Lost Data and Limited Reports
A Data Lost Report generates when an event cannot transmit to the central station. This occurs when the:
•
Reporting buffer contains the maximum of 32 events and another event occurs. The lowest priority event in
the report buffer is deleted and replaced by Data Lost unless the report is already a Data Lost Report. If the
new event has a higher priority than an event already in the report buffer, the lower priority event is
discarded and replaced with the higher priority event. When the buffer is full, the lowest priority event is
discarded when a new event occurs. The Data Lost Report is the last event sent, emptying the report
Use the default setting of Phone 1 with Phone 2 as a backup. If this setting changes, the telephone lines
used also change and the messages might not transmit to the central station