D6500 Computer Interface Manual
74-05313-000-G 10/16/97
Page 9
© 1988-1997 Radionics, Inc.
4.1.1 Message Type 1 (Standard Digital Message)
D6500 Byte Description
1 2
3 4
5 6
7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22
Type 1 Example:
h
l
r
r
l
s
s s
s s
s
a
a
a
a
s
O
s
i
y
y
t
1 = Header Character (
h
)
Optional, programmed in
6500 Header Char.
2 = Message Type
This byte will tell a computer system which decoding path to use. For a
standard digital message the type is ASCII 1.
3 through 4 = Receiver Number
This 2 byte ASCII HEX field is the number of the receiver that sent the
message (as programmed in
Receiver Number).
5 = Line Card Number
This 1 byte ASCII HEX field is the line number of the Line Card in the
receiver that sent the message.
6 through 11
Unused ASCII spaces.
12 through 15 = Account Number This 4 byte ASCII HEX field is the communicator's account number.
Account numbers less than four characters will be right justified with
leading ASCII spaces.
16 through 17 = Event Code
This is a 2 byte ASCII TEXT field. It defines the type of signal that was
received and interpreted by the 6500 Receiver. See Figure 5 for a list of
valid codes.
18 through 21 = Zone Number
This 4 byte ASCII HEX field is the zone or ID number sent by the
communicator. Zone numbers less than four digits will be right justified
with leading
ASCII
spaces.
22 = Trailer Character
Programmed in
Trailer Char. Typically this is a HEX 14.
4.1.2 Message Type 3 (Text Message)
D6500 Byte Description
1 2
3 4
5 6
7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22
Type 3 Example:
h 3
r
r
s P R I
N T
E
R
v
v
.
v
v
t
1 = Header Character (
h
)
Optional, programmed in
6500 Header Char.
2 = Message Type
For a Text Message the type is an ASCII 3.
3 through 4 = Receiver Number
This 2 byte ASCII HEX field is the number of the receiver that sent the
message (as programmed in the D6500).
5 = Line Number
This 1 byte ASCII HEX field is the line number of the Line Card in the
receiver that sent the message.
6 through 21 = Message Text
16 characters in length.
22 = Trailer Character
Programmed in
Trailer Char. Typically this is a HEX 14.
