
Section 25 – System Communication
25-3
The following describes each format in greater detail.
3+1 and 4+1 Standard
Formats
Comprised of a 3- (or 4-) digit subscriber number and a single
digit report code (e.g. Alarm, Trouble, Restore, Open, Close,
etc.).
3+1 and 4+1 Expanded
Formats
Comprised of a 3- (or 4-) digit subscriber number, and a two-
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.
4+2 Format Comprised of a 4-digit subscriber number and 2-digit report
code.
ADEMCO Contact ID
Reporting Format
Comprised of a 4-digit subscriber number, 1-digit event
qualifier ("new" or "restore"), 3-digit event code, 2-digit
Partition Number, and 3-digit zone number, user number, or
system status number.
ADEMCO High Speed Comprised of 13 digits as follows: A 4-digit account number +
eight channels of zone information (1-8 or duress plus 9-15) +
one status channel, which identifies the type of events being
reported in the eight zone locations.
Report 3+1/4+1 3+1/4+1 4+2
Standard Expanded Low Spd or
Express
Alarm SSS(S) A SSS(S) A SSSS AZ
AAA(A) Z
Trouble SSS(S) T SSS(S) T SSSS Tt
TTT(T) t
Bypass SSS(S) B SSS(S) B SSSS Bb
BBB(B) b
AC Loss SSS(S) E SSS(S) E SSSS EA
C
EEE(E) A
C
Low Batt SSS(S) L SSS(S) L SSSS LL
B
LLL(L) L
B
Open SSS(S) O SSS(S) O SSSS OU
OOO(O) U
Close SSS(S) C SSS(S) C SSSS CU
CCC(C) U
Test SSS(S) G SSS(S) G SSSS Gg
GGG(G)g
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