OMNI-624/OMNI-624EU Installation and Setup Guide
8-4
the conventional pulse formats, since it uses DTMF (touch-tones) instead of pulses to transmit the data
and it always sends a parity digit.
For alarms, openings and closings, the Alarm Type digit will be the same as the Signal Type. This
indicates the type of activity or condition that has occurred. However, on bypasses, restores and
troubles, the Alarm Type will not be the same as the Signal Type. Instead, the Signal Type will change,
indicating the current condition of the zone.
NOTE: This is a unique feature of this format that allows more intelligent reporting of the activity
occurring in the system. For instance, the following unique messages can be transmitted:
1234 1 01 1 Fire Zone 001
1234 1 01 E Restore Fire Zone 001
1234 1 01 F
Trouble Fire Zone 001
ADEMCO 4x1 Express
The 4x1 Express Reporting Format:
AAAA 17 E,
where:
AAAA
= Three- or four-digit account number (Submode 1, Questions 06–09)
17
= Uniquely identifies this format to the receiver and to an automation system, but is
not displayed or printed.
E
= Single-digit event code; it is the first of the 2 programmable reporting code digits
This format transmits in DTMF a total of 6 digits (including the parity digit). It is similar to the
Standard format in that it can transmit a total of only 15 reporting codes. However, its advantage is
speed because it transmits touch-tones instead of pulses and it always sends a parity digit. Examples:
123 3 6 (1st round)
123 3 (resulting data) Burglary
ADEMCO 4x2 Express
The 4x2 Express Reporting Format:
AAAA 27 EZ,
where:
AAAA
= Three- or four-digit account number (Submode 1, Questions 06–09)
27
= Uniquely identifies this format to the receiver and to an automation system but is
not displayed or printed
E
= Single-digit event code; it is the first of the 2 programmable reporting code digits
Z
= Zone or user identifier; it is the second of the 2 programmable reporting code digits
This format transmits in DTMF a total of 7 digits (including the parity digit). This format is similar to
the 4x1 Extended and 4x2 formats in that the output sends a 4-digit account and 2-digit event code.
However, its advantage is speed because it transmits touch-tones instead of pulses and it always sends
a parity digit. Examples:
1234 31 1 (1st round)
1234 31 (resulting data) Burglary Zone 1
