D6500 Computer Interface Manual
74-05313-000-G 10/16/97
Page 12
© 1988-1997 Radionics, Inc.
•
Multiple event packets are not supported. The D6500 always transmits single event packets to the
automation system. The D6500 requires the host computer to use sequence numbers in acknowledgment
messages.
•
Hardware lines, rather than null messages, are usually used to test the link between the receiver and the
computer (See Section 4.6, Link Test).
•
When the primary output device fails to respond, the message is transmitted to the secondary device. If
the secondary device fails, the receiver goes into manual mode. Messages are not repeated at 4 second
intervals, as specified in the SIA
Computer Interface Standard.
•
The D6500 method of computer failure reporting is consistent with previous versions of the D6500. The
computer failure reporting methods specified in the SIA
Computer Interface Standard are not supported.
a
= account number digit (
0-F
) or area number digit (
1-8
)
ai
= Sked field label
c
= code identification digit
d
= serial device interface digit
h
= hour digit, phone number, phone line #
i
= user or operator identification digit (
001-099
)
id
= identification field label
k
=
Sked identification digit (
01-64
)
m
= minute
digit
n
=
condition number digit
N
=
"new" signal label - the data which follows is new to the receiver.
O
=
"old" signal label - the data which follows has been previously processed by the receiver.
p
=
point identification digit (D9112:
1-134
, D7112:
001-048
) or path number digit
ph
=
phone number field label
pi
=
serial device interface field label
r
= relay identification digit
ri
= area number field label
ti
= time field label
Table 5: DIGIT/CHARACTER CODE - SIA MODE
NOTES: Account numbers with less than 4 digits have leading spaces in the SIA mode.
SIA Mode labels – literal ASCII letters that are output to the automation system – are indicated in
bold. Example: The user ID label in the D9112 Modem II "Closing Early By Area" signal is shown as:
<header> [#aaaa|Nria/idiiiCK]