3M X21 Operator's Manual page 78

RS-232C Communication
10).
table (
Connection
1.
2.
3.
on.
8
CONTROL
RS-232C
RS-232C Cable
(cross)
of the computer
8 7 6
9
5 4 3 2 1
RTS (7)
RI (9)
3M™ Digital Projector X21/X26
CONTROL
CONTROL port
9 8 7 6
5 4 3 2 1
−
−
−
(7) RTS
(9) −
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