3M X21 - Page 78

8
3M™ Digital Projector X21/X26
© 3M 2010. All Rights Reserved.
RS-232C Communication
56&&RPPXQLFDWLRQ
:KHQWKHSURMHFWRUFRQQHFWVWRWKHFRPSXWHUE\56&FRPPXQLFDWLRQWKH
SURMHFWRUFDQEHFRQWUROOHGZLWK56&FRPPDQGVIURPWKHFRPSXWHU
)RUGHWDLOVRI56&FRPPDQGVUHIHUWR56&&RPPXQLFDWLRQFRPPDQG
table (
10).
Connection
1.
7XUQRIIWKHSURMHFWRUDQGWKHFRPSXWHU
2.
&RQQHFWWKHSURMHFWRUVCONTROLSRUWDQGWKHFRPSXWHUV56&SRUW
ZLWKD56&FDEOHFURVV8VHWKHFDEOHWKDWIXO¿OOVWKHVSHFL¿FDWLRQ
VKRZQLQ¿JXUH
3.
7XUQWKHFRPSXWHURQDQGDIWHUWKHFRPSXWHUKDVVWDUWHGXSWXUQWKHSURMHFWRU
on.
CONTROL
RS-232C
(cross)
RS-232C Cable
&' 
−
 5' 5'
 7' 7'
 '75 
−
 *1' *1'
 '65 
−
RTS (7) (7) RTS
 '76 &76
RI (9) (9)
−
CONTROL port
RIWKHSURMHFWRU
56&SRUW
of the computer



1
2
4
3
8
9
5
76
6
54321
9
8
7