User Manual

DataPage MK2 (USA, ECO) Desktop UHF Radio Paging System
DPUSAECO 20 Issue 1
Appendix A
Example of typical Command-Acknowledge Sequence:
CALLER RECEIVING STATION
<CR> every 1 second unit…..
ID=
<ESC>PG1<CR>
<ESC>[p<CR>
<STX>1<CR>TEST<CR><ETX>190<CR>
(“TEST” is the message) Processing-Please Wait<CR><ACK><CR>
(“190” is the Checksum)
+++,,,,,,,,,,ATHO<CR>
Carrier Drop
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>
Checksum = 17
*********************************************************************
000 *
011 *
011 *
011
000 *
100
100 *
100 *
000 *
000 *
0010 *
0001
0010 *
0011 *
1101 *
0001 *
0010 *
0011 *
1101 *
0011 *
STX *
1
2
3 *
CR *
A *
B *
C *
CR
ETX *
*
*
*
1 0111
1 7
1011
; *