Section 8 – Automation Communication Formats
8–33
Table 8–38: Number and ITI Digit Equivalent
Number
Represented by
ITI Digit
0 - 9
0 - 9
10 - 35
A - Z
36 - 61
a - z
8.10.2 General Record Structure
Each record begins with <"|["><Record Type> field (see Table 8–39 for record identifiers) and ends with a
<"]|"><Cksum/Ctrl> field. Any fields within a record may be included in an individual record as needed.
A record is made up of fields of data (in varying lengths), and each field within a record begins with a <"|">
character. The <"|"> is followed by a field identifying character. Individual field identifiers are unique to the
specific record where they are contained. For example, a |L field in a report record has a different meaning
than an |L field of a test record and so on. There is no specific order to the fields of a record, with the
exception that it will begin with the record type and end with a checksum/control field.
After the checksum/control field each record is terminated with a carriage return (<
$
0D>).
Table 8–39: Type of Record Identifiers
Field Identifier
Definition
[R Report
record
[T Test
record
[S Supervisory
record
[L Log
record
The following is a generic example of a transmitted message record:
<"|["><Record Type><Info fields...><"|]"><Cksum/Ctrl><$0D>
Table 8–40: Record Components
Character Description
<"|[">
Start of record indicator.
<Record Type>
Record type. See Table 8–39.
<|Info fields...>
Information fields. See Table 8–42.
<"|]">
End of information fields indicator.
<Cksum/Ctrl>
Checksum/control field. See Section 8.10.7.
<$0D>
End of record indicator.
8.10.3 Report Record
A report record is generated when a control panel calls into the receiver for any reason.
The following is an example report record (see also Table 8–41):
<"|["><"R"><"|IA1"><"|LB"><"|A123456"><"|V55600"><"|D0514"><"|
T1019"><"N0005"><"|Z1"><"|CA"><"|]"><Cksum/Ctrl><$0D>
Table 8–41 lists the components of a report record and their description.
