Denon DCM 390 Serial Protocol - Page 3
Serial communication interface, Physical interface
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Revision1.40 Date 24.May.'07 1 Serial communication interface DCM390 Serial Interface Specification 3 page of 40 1.1 Physical interface a) DCM280 has pin Dsub female connector for serial interface. b) Table 1 indicates pin assignment of connector signals. Terminal # 1 2 3 4 5 6 7 8 9 RS-232C Signal I/O NC - TxD O RxD I NC - S.GROUND - NC - NC - NC - NC - Table 1. Pin Assignment c) Figure 1 indicates diagram of RS232C and RS422A. RS-232C CPU TXD RXD Figure 1. Serial Driver/Receiver D&M
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Revision1.40
DCM390 Serial Interface Specification
Date 24.May.’07
3 page of 40
1
Serial communication interface
1.1
Physical interface
a)
DCM280 has pin Dsub female connector for serial interface.
b)
Table 1 indicates pin assignment of connector signals.
RS-232C
Terminal #
Signal
I/O
1
NC
-
2
TxD
O
3
RxD
I
4
NC
-
5
S.GROUND
-
6
NC
-
7
NC
-
8
NC
-
9
NC
-
Table 1. Pin Assignment
c)
Figure 1 indicates diagram of RS232C and RS422A.
RS-232C
Figure 1. Serial Driver/Receiver
CPU
TXD
RXD