4 x 2 Standard Codes
4 x 2 is made up of a 4 digit alarm account code followed by a two digit alarm code. aaaaTP where aaaa is in the hexadecimal range of 0000 to FFFF and T is in the hexadecimal range of 0 to F, and P is in the hexadecimal range of 0 to F.
While dealers may use any combination of Type "T" and Point "P" to indicate an alarm condition certain conventions are best observed. When the "T" is represented by a hexadecimal digit (B -F) most receivers and automation systems follow the following convention
"T"ype code |
Condition |
"P"oint |
Definition |
|
0 |
Test |
X |
Periodic Test |
|
1 |
Fire |
X |
Fire Alarm
zone/point X |
|
2 |
Panic |
X |
Panic Alarm zone/point X |
|
3 |
Burglary |
X |
Burglary Alarm zone/point X |
|
4 |
General Alarm |
X |
General use Alarm zone/point X |
|
5 |
General Alarm |
X |
General use Alarm zone/point X |
|
6 |
General
Alarm |
X |
General use Alarm zone/point X |
|
7 |
Medical |
X |
Medical alarm zone/point X |
|
9 |
Restore |
X |
Restore zone/point X |
|
B |
Open |
X |
Opening user X |
|
C |
Close |
X |
Closing user X |
|
D |
Cancel |
X |
Cancel user X |
|
E |
Restoral |
X |
Restore Zone X |
|
F |
Trouble |
X |
Trouble Zone X |
X= a hexadecimal digit in the range of 0 to F |
