ADEMCO Vista-20HW Anleitung zur Fehlerbehebung PDF herunterladen (Seite 61)

100

This section provides an explanation of formats this system accommodates

for reporting alarms and other system conditions

to the central station. The

process of

a successful transmission consists of both the method of

communication between the control panel and the central station receiver

and the actual way the information is sent and displayed at the central

station.

Report Code Formats

When the panel calls the central station receiver, it waits to hear a

“handshake” frequency from the receiver to confirm that the receiver is on-

line and ready

to receive its message. Once the panel hears the handshake it

is programmed

to listen for, it sends its message. The panel then waits for a

“kissoff’

frequency from the receiver acknowledging that the message was

received and understood.

If the handshake frequency is not given or is not understood by the panel, the

panel will not send its message. Once the handshake frequency is received

and understood by the panel, the panel will send its message. If there is an

error in the transmission (the receiver does not receive a “valid” message),

the kissoff frequency will not be given by the central station receiver.

The panel will make a total of eight attempts to the primary telephone

number and eight attempts to the secondary telephone number (if

programmed) to get a valid message through. If the panel is not successful

after its numerous attempts, the keypad will display “Comm Failure” (Alpha

keypad) or “FC” (Fixed-word keypad).

The following chart defines the three sets of (handshake/kissofF) frequencies

that the panel supports and the different formats that can be sent for each.

FORMAT IHANDSHAKE ITRANSMITSDATA

LowSpeed

3+1

4+1

4+2

SescoafRad

3+1

4+1

4+2

1400Hz

2300Hz

1900Hz(1OPPS)

1900Hz(20PPS)

Express

1400–2300Hz DTMF(10

CPS)

4+2

ContactID 11400–2300Hz

I DTMF(10 cps)

KISSOFF

1400Hz

2300Hz

1400Hz

lTtANSMITTIME I

Under 15sees.

(Standardreport)

Under3 sees.

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1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 99 100

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