Barnett Engineering ProTalk Plus B1290, Руководство по эксплуатации, Страница: 26 / 82

Operation
This chapter gives a detailed description of exactly how the B1290 will op-
erate after the start-up programming has been completed. Parameters
which may be altered are pointed out, with reference to the appropriate
Program Code section.
Alarm Sequence
When the B1290 receives an alarm on one of its inputs, it goes off hook and
listens for dial tone. If dial tone is not present, the B1290 will hang up and
try again. After three unsuccessful attempts to detect dial tone, the B1290
will conclude there is a problem with the line and stop dialing. When this
occurs the unit will report Telephone Access Error over the radio, set the error
relay and flash the RUN and HOOK LEDs.
If dial tone is detected, the B1290 dials the first telephone number stored in
Directory A using tone dialing. When the telephone line is answered, the
B1290 will announce its Site ID, the list of any alarms present, and prompt
the user to Enter Acknowledge Code. It will repeat this message a minimum
of three times, pausing five seconds after each announcement to wait for an
acknowledgment. When the Acknowledge Code is detected, the B1290 will
announce Alarms Acknowledged and then prompt “Enter Control Code”.
If the line is busy, if there is no answer, or if the B1290 does not receive the
Acknowledge Code after announcing the alarm, it will hang up the tele-
phone line, then go off hook again and dial the next number in the direc-
tory. If the B1290 dials all the way through the directory without being ac-
knowledged, it will wait two minutes (Interval Timer A), then start dialing
again from the top of the directory. After three tries (Times A) at two min-
ute intervals, the B1290 will retry the list every ten minutes (Interval Timer
B) thereafter, not stopping until it is acknowledged.
All of the timers and intervals mentioned above are adjustable. In addition,
the B1290 may be programmed to announce the alarm a number of times
over radio, or a public address system, as well as dialing on the telephone.
Acknowledging an Alarm
When the B1290 calls you on the telephone, it may take up to five seconds
before it starts speaking. After it announces the alarms, it prompts you to
Enter Acknowledge Code. You have five seconds to begin entering the digits.
If the B1290 has been programmed to operate its relays (Program Code 3,
DTMF Codes), you may send a relay code over the telephone before ac-
knowledging the alarms. The B1290 will actuate the relay, speak the associ-
ated voice message, then prompt you again to Enter Acknowledge Code.
After the B1290 has detected the Acknowledge Code, it will speak the
25 Operation