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DataPage MK2 (USA) Desktop UHF Radio Paging System
Example of typical Command-Acknowledge Sequence:
CALLER
<CR> every 1 second unit.....
<ESC>PG1<CR>
<STX>1<CR>TEST<CR><ETX>190<CR>
("TEST" is the message)
("190" is the Checksum)
Example Checksum:
The following table shows an example of a complete block containing a correct checksum which is :
<STX>123<CR>ABC<CR><ETX>17;<CR>
STX
*
000 *
1
011 *
2
011 *
3
*
011
CR
*
000 *
A
*
100
B
*
100 *
C
*
100 *
CR
000 *
ETX
*
000 *
*
1 0111
*
1
*
DPUSA 02/00
0010 *
0001
0010 *
0011 *
1101 *
0001 *
0010 *
0011 *
1101 *
0011 *
1011
7
;
*
Checksum = 17
DataPage II 9-Pin Serial Port
1-N/C
2
3
4
5
6-N/C
7
8
9- N/C
21
Appendix A
RECEIVING STATION
ID=
<ESC>[p<CR>
Processing-Please Wait<CR><ACK><CR>
+++,,,,,,,,,,ATHO<CR>
Carrier Drop
Receive Data (RX IN)
Transmit Data (TX OUT)
Data Terminal Ready (DTR OUT)
GROUND (GND)
Request to Send (RTS OUT)
Clear to Send (CTS IN)
Issue 2
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