
18 QM00192 -1
2. Response code / Error code KVKRZVKH[DGHFLPDO
7KHFRQQHFWLRQ,'LVDWWDFKHGIRUWKH7&3VUHVSRQVHHUURUFRGHVDUH
XVHG7KHFRQQHFWLRQ,'LVVDPHDVWKHVHQGLQJFRPPDQGIRUPDW
(1) ACK reply : 06h + ××h (îîKFRQQHFWLRQ,')
(2) NAK reply : 15h + ××h
(3) Error reply : 1Ch + 0000h + ××h
(4) Data reply : 1Dh + xxxxh + ××h
(5) Authentication error reply : 1Fh + 0400h + ××h
(6) Projector busy reply: 1Fh + ××××h + ××h
:KHQWKHSURMHFWRULVWRREXV\WRUHFHLYHVWKHFRPPDQGWKHSURMHFWRUUHWXUQV
WKHHUURUFRGH
,QVXFKDFDVHFKHFNWKHVHQGLQJFRGHDQGVHQGWKHVDPHFRPPDQGDJDLQ
Automatic Connection Break
7KH7&3FRQQHFWLRQZLOOEHDXWRPDWLFDOO\GLVFRQQHFWHGDIWHUWKHUHLVQR
FRPPXQLFDWLRQIRUVHFRQGVDIWHUEHLQJHVWDEOLVKHG
Authentication
7KHSURMHFWRUGRHVQRWDFFHSWFRPPDQGVZLWKRXWDXWKHQWLFDWLRQVXFFHVV
ZKHQDXWKHQWLFDWLRQLVHQDEOHG7KHSURMHFWRUXVHVDFKDOOHQJHUHVSRQVHW\SH
DXWKHQWLFDWLRQZLWKDQ0'0HVVDJH'LJHVWDOJRULWKP:KHQWKHSURMHFWRULV
XVLQJD/$1DUDQGRPE\WHVZLOOEHUHWXUQHGLIDXWKHQWLFDWLRQLVHQDEOHG%LQG
WKLVUHFHLYHGE\WHVDQGWKHDXWKHQWLFDWLRQSDVVZRUGDQGGLJHVWWKLVGDWDZLWK
WKH0'DOJRULWKPDQGDGGWKLVLQIURQWRIWKHFRPPDQGVWRVHQG
)ROORZLQJLVDVDPSOHLIWKHDXWKHQWLFDWLRQSDVVZRUGLVVHWWR³SDVVZRUG´DQGWKH
random 8 bytes are “a572f60c”.
1) 6HOHFWWKHSURMHFWRU
5HFHLYHWKHUDQGRPE\WHV³DIF´IURPWKHSURMHFWRU
%LQGWKHUDQGRPE\WHV³DIF´DQGWKHDXWKHQWLFDWLRQSDVVZRUG
“password” and it becomes “a572f60cpassword”.
'LJHVWWKLVELQG³DIFSDVVZRUG´ZLWK0'DOJRULWKP
It will be “e3d97429adffa11bce1f7275813d4bde”.
$GGWKLV³HGDGIIDEFHIGEGH´LQIURQWRIWKHFRPPDQGVDQG
VHQGWKHGDWD
Send “e3d97429adffa11bce1f7275813d4bde”+command.
:KHQWKHVHQGLQJGDWDLVFRUUHFWWKHFRPPDQGZLOOEHSHUIRUPHGDQGWKH
UHSO\GDWDZLOOEHUHWXUQHG2WKHUZLVHDQDXWKHQWLFDWLRQHUURUZLOOEHUHWXUQHG
NOTE$VIRUWKHWUDQVPLVVLRQRIWKHVHFRQGRUVXEVHTXHQWFRPPDQGVWKH
DXWKHQWLFDWLRQGDWDFDQEHRPLWWHGZKHQWKHVDPHFRQQHFWLRQ
Command Control via the Network (continued)