System Communication - ADEMCO Lynx Installation Instructions Manual

System Communication

This section provides an explanation of formats this system accommodates for reporting alarms and other system
conditions to the central station.
communication between the control panel and the central station receiver, and the actual way the information is sent
and displayed at the central station.
Communication Overview
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 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 "FC."
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.
Report Code Formats
3+1 and 4+1 Standard Formats
3+1 and 4+1 Expanded Formats
4+2 Format
ADEMCO Contact ID
Reporting Format
The following table shows the message formats for 3+1, 4+1 and 4+2 reports, where:
SSS or SSSS = Subscriber ID
A =
Z =
T t =
B b =
E A C =
LL B =
O =
*Zone numbers for: [
The process of a successful transmission consists of both the method of
FORMAT HANDSHAKE
Low Speed 1400Hz
3+1
4+1
4+2
Sescoa/Rad 2300Hz
3+1
4+1
4+2
Express 1400–2300Hz
4+2
Contact ID 1400–2300Hz
Comprise a 3- (or 4-) digit subscriber number and a single digit report code (e.g.
alarm, trouble, restore, open, close, etc).
Comprise a 3- (or 4-) digit subscriber number, and a 2-digit report code. The first
digit is displayed on the first line, followed by a second line where the first digit is
repeated 3 (or 4) times and followed by the second digit. This is the "expanded"
digit.
Comprises a 4-digit subscriber number and 2-digit report code.
Comprises a 4-digit subscriber number, 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).
Alarm Code (1st digit)
Typically Zone Number* (2nd digit)
Trouble Code (1st & 2nd digits)
Bypass Code (1st & 2nd digits)
AC Loss Code (1st & 2nd digits)
Low Battery Code (1st & 2nd digits)
Open Code (1st Digit)
] & [#], or [B] = 99; [1] + [
*
TRANSMITS DATA
1900Hz (10PPS)
1900Hz (20PPS)
DTMF (10 cps)
DTMF (10 cps)
C =
U =
Gg =
R =
R T t =
R B b =
R A A C =
R L L B =
], or [A] = 95; [3] + [#], or [C] = 96; Duress = 92
*
–36–
KISSOFF TRANSMIT TIME
1400Hz Under 15 secs.
(Standard report)
2300Hz Under 10 secs.
(Standard report)
1400Hz Under 3 secs.
1400Hz Under 3 secs.
Close Code (1st Digit)
User Number (in hex)
Test Code (1st & 2nd digits)
Alarm Restore Code
Trouble Restore Code (1st & 2nd digits)
Bypass Restore Code (1st & 2nd digits)
AC Restore Code (1st & 2nd digits)
Battery Restore Code (1st & 2nd digits)