OMNI-400/OMNI-400EU and OMNI-600/OMNI-600EU Installation and Setup Guide
8-2
Standard (3x1 or 4x1)
The Standard Reporting Format:
AAA E or AAAA E
where:
AAAA
= Three- or four-digit account number
E
= Single-digit event code; it is the first of the 2 programmable reporting code digits
Standard format is transmitted in Pulse, and involves a 3- or 4-digit account number followed by a
single-digit event code. It can be transmitted with parity (1 round of data) or without parity (2 rounds
of data). A disadvantage of this format is that it can transmit a total of only 15 event codes (0–9, B–F)
without identifying zones or users. Examples:
3x1 w/o PARITY
3x1 w/PARITY
123 3 (1st round)
123 3 6 (single round)
123 3 (2nd round)
123 3 (resulting data)
123 3 (resulting data)
4x1 w/o PARITY
4x1 w/PARITY
1234 3 (1st round)
1234 3 2 (single round)
1234 3 (2nd round)
1234 3 (resulting data)
1234 3 (resulting data)
Parity is a number derived automatically by the dialer utilizing a mathematical formula (modulo
15). For example, 123 3 adds up to 9. This is subtracted from the next-highest multiple of 15; in
this case, 15 – 9 = 6. If the CS receiver accepts a valid parity digit, it considers the data
transmission valid, delivers a “Kissoff,” and processes the data. The parity digit is not displayed.
Its only purpose is for validation of data transmitted. It is not a programmable digit; it is
generated automatically by the dialer when the Parity option is selected in programming
Submode 1, Question 07, Location 2/4. The obvious advantage of using parity is speed. The
transmission time between dialer and receiver is shorter because fewer digits are transmitted
with it as opposed to without it.
Extended (3x1 Ext. or 4x1 Ext.)
The Extended Reporting Format:
AAA EZ
or
AAAA EZ,
where:
AAAA
= Three- or four-digit account number (Submode 1, Questions 05–06)
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
Extended format is transmitted in Pulse and involves a 3- or 4-digit account number followed by a
double-digit reporting code. The only purpose for using the Extended format (sometimes known as
Universal or Expanded format) is to be able to transmit more than 15 codes to the CS receiver. The
system does this by extending the event code from the previous round of data, resulting in a 2-digit
reporting code. It can be transmitted with parity (2 rounds of data) or without parity (4 rounds of data).
There are 15 possible event codes, each of which can have up to 15 different zone or user identifiers.
Examples: