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CHAPTER 2 Operations of SV8500 Server
(2) Transmission Message
One transmission message consists of 128 bytes of data. Each byte represents by ASCII codes the data to
be transmitted (Refer to Table below). The contents of the data to be transmitted vary with the kind of call,
but the first byte is always transmitted by ASCII code K (4B hex.). The second byte to be transmitted is the
data which specifies the kind of call.
Note: If FCCS service is involved, the message can consist of more than 128 byte data.
ASCII Code
CHARACTER
ASCII CODE
REMARKS
HEX.
BINARY DIGIT
b7 b6 b5 b4 b3 b2 b1 b0
0 30 00110000
1 31 00110001
2 32 00110010
3 33 00110011
4 34 00110100
5 35 00110101
6 36 00110110
7 37 00110111
8 38 00111000
9 39 00111001
SPACE 20 00100000Special Characters Code
STX 02 00000010
ETX 03 00000011
SA 30 00110000
UA 21 00101011
* 2A00101010
# 23 00100011
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