Prn 9 pin d-sub pin assignment, Rs-232c, D-sub 9 pin – Panasonic DT2750MS User Manual
Page 37: Simplified wired communication
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Simplified wired communication
The DT-2750MS can support the simplified wired communication with 9P D-sub connector.
The customer can control “Power ON/OFF” and “Input signal select” by setting 3 pins of a 9P D-sub to high or low
level.
These are 3 of the unused pins on the same connector that is provided for RS-232C control. (RS-232C requires
only 2 pins and a ground.)
prn 9 pin D-sub pin assignment
RS-232C
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D-sub 9 pin
Pin No.
Signal
Assignment
1
XTEST
Open
2
RXD
Used for RS-232C communication
3
TXD
Used for RS-232C communication
4
5V (STAND BY)
Used for the simplified wired remote control
5
GND
6
XEXT-ACTIVE
Used for the simplified wired remote control
7
EXT-CTRL 0
Used for the simplified wired remote control
8
EXT-CTRL 1
Used for the simplified wired remote control
9
EXT-CTRL 2
Used for the simplified wired remote control
r^n Command table of the simplified wired remote control
EXT-CTRL
""' 1
Action command
2
1
0
0
0
0
POWER OFF
0
0
1
POWER ON
0
1
0
RGB1 SELECT
0
1
1
AVI SELECT
1
0
0
RGB2 SELECT
1
0
1
AV2 SELECT
1
1
b
DTV SELECT
1
1
1
Null
Note: To make the simplified wired communication active, XEXT-ACTIVE terminal (#6 pin) should be connected
to the ground.
When the simplified wired communication is active, control via front panel, wireless remote control unit, and
RS-232C communication are disabled.
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