Section 6. System Communication And Operation; Panel Communication With Central Station; Report Code Formats - Honeywell ADEMCO VISTA SERIES VISTA-21iP Installation And Setup Manual

System Communication and Operation

Panel Communication with Central Station

This system accommodates several formats 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.
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 sends its message. If there
is an error in the transmission (the receiver does not receive a "valid" message), the kissoff frequency is not
given by the Central Station receiver.
The panel makes 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 displays COMM. FAILURE (on alpha keypads) or FC (on fixed-word
keypads).

Report Code Formats

The following chart indicates the types of (handshake/kissoff) frequencies that the panel supports and the
different formats that can be sent with each.
FORMAT HANDSHAKE
Low Speed 1400 Hz
3+1, 4+1, 4+2
Sescoa/Rad 2300 Hz
3+1, 4+1, 4+2
Express 1400–2300 Hz
4+2
Contact ID 1400–2300 Hz
The following table describes each format in greater detail.
FORMAT TYPE
3+1 and 4+1
Standard Formats
3+1 and 4+1
Expanded Formats
4+2 Format
ADEMCO Contact ID
Reporting Format
TRANSMITS DATA
1900Hz (10PPS)
1800Hz (20PPS)
DTMF (10 cps)
DTMF (10 cps)
DESCRIPTION
Comprises a 3- (or 4-) digit subscriber number and a single-digit report
code (e.g., Alarm, Trouble, Restore, Open, Close, etc).
Comprises a 3- (or 4-) digit subscriber number and a two-digit report code.
The first digit is displayed on the first line. On the second line, it is repeated
3 (or 4) times and is followed by the second digit. This is the "expanded"
digit.
Comprises a 4-digit subscriber number and 2-digit report code.
Comprises a 4- or 10-digit subscriber number (depending on format
selected), 1-digit event qualifier ("new" or "restore"), 3-digit event code, and
3-digit zone number, user number, or system status number (see the
following page).
KISSOFF TRANSMIT TIME
1400 Hz Under 15 secs
(Standard report)
2300 Hz Under 10 secs
(Standard report)
1400 Hz Under 3 secs
1400 Hz Under 3 secs
S E C T I O N 6
6-1