Viking Alarm Dialers Handbuch PDF herunterladen (Seite 7)

Once the message repeat count has been met without a response, the K-202-DVA will give a single beep to in-

dicate that it has delivered its messages and is about to hang up. The K-202-DVA will then pause for five seconds

to allow the called party a final opportunity to exercise one of the above options.

If the K-202-DVA delivers its message and the called party does not reset the alarmed input the K-202-DVA

hangs up and dials the next number on the list for that input. If all numbers have been dialed and the alarm is still

not reset the K-202-DVA increments the lap counter for that input and starts the dialing process over again. This

will continue until the lap counter has been met. At this point the K-202-DVA marks the input as an alarmed input

and returns the input to its rest state.

If an alarm input is reset, the manner in which the input resumes normal operation is determined by the Resume

Timer. If the Resume Timer is set to zero, the K-202-DVA starts looking at the input again right away. If the

closure is still in effect, the K-202-DVA waits for it to go away. If the closure is no longer in effect but a short time

later it returns, the K-202-DVA will start the alarm dialing procedure all over again for that input. However, if the

Resume Timer is set to a non-zero value, the K-202-DVA counts down from that value to zero and then examines

the input to see if the closure is still in effect. If it is, the alarm dialing procedure starts again. If not, the input

goes back to the rest state.

It is also possible to remotely access the K-202-DVA to poll it for any alarms that might not have been reset. This

is done by calling the phone line connected to the K-202-DVA. After it answers and provides its single beep as

a prompt, enter Q followed by the six digit Access Code. The K-202-DVA gives two beeps and the 4 above

options become available.

Note that if a Q is entered while connected to the call the K-202-DVA will exit its current mode and if no touch

tones are entered within 20 seconds, it will hang up and proceed. This 20 second wait is important, so that an

RC-2A or RC-3 can be used in conjunction with the K-202-DVA. For more information, see DOD# 878.

The PA mode is useful in applications where the K-202-DVA is providing emergency or informational messages

over a paging system, activated from an alarm system, panic buttons or doorbell buttons. When an input is acti-

vated, the K-202-DVA dials the access code or extension number for the PA system and listens for a busy signal.

If it does not hear a busy signal the forced play timer expires and the recorded message plays for the programmed

number of repeats. Unlike the alarm dialing mode, this mode does not produce a beep after the message has

played, so beeps are not sent out over the speakers. If the K-202-DVA does hear a busy signal it hangs up, waits

two seconds and then dials the access code for the PA system again, provided that the lap counter has not been

reached yet. The K-202-DVA will keep repeating this process until a busy signal is not heard or the lap counter

reaches its programmed value. Once the K-202-DVA plays the message or the lap counter expires it returns to

idle and waits for another input trigger. The lap counter in this mode is actually a counter for the maximum number

of times the K-202-DVA will attempt to call a busy paging port before it gives up. When playing emergency mes-

sages over the paging system, the lap counter should be set fairly high to ensure the emergency message even-

tually plays, especially on systems with heavy paging traffic.

B. PA (Public Address) Mode

At the end of the standard alarm dialing procedure when the lap counter has been met the K-202-DVA resets the

input and marks it to keep track of the fact that there was an alarm that was not reset by the user. From this point

on, while it is possible to call in to the K-202-DVA and poll it to discover that there was an alarm, the K-202-DVA

does not initiate any more dialing.

This alarm situation is handled differently when the auto-resume feature is enabled. The K-202-DVA resets and

marks the input, but it also starts the resume timer, the value of which is set in programming (see Programming

section I). While the resume time is running, the unit will not call its programmed numbers, but it will play the

alarm message of the marked input if it is polled, and the user can dial a touch tone 9 to return the input to its rest

state. If the resume timer elapses without a call from the user, the K-202-DVA clears the lap counter and starts

the alarm dialing sequence again from the beginning. If the lap counter is reached again, the unit ceases dialing

and the resume timer is started again. This will continue until one of the called numbers answers and resets the

input by dialing a touch tone 9 or until a user calls in, polls the unit by dialing a touch tone 1, and resets the

alarmed input by dialing a touch tone 9. See Operation section A for a description of the polling procedure.

C. Auto Resume Mode

A momentary switch can be connected between the Reset Terminal and chassis ground (not earth ground) to pro-

vide a local reset to both inputs. See the Installation diagram on page 3 to see how to hook this up. A closure

resets either or both of the inputs if they are in alarm state, and will also clear either or both of the inputs if they

are marked. Note that the inputs may alarm again if the resume timer is set to zero and the condition that caused

the alarm has not been corrected.

D. Local Reset

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