Using The Serial Connector - Panasonic PT-LC56E Operating Instructions Manual

Using the SERIAL connector

The serial connector which is on the side connector panel of the projector
conforms to the RS-232C interface specification, so that the projector can be
controlled by a personal computer which is connected to this connector.
Connection
Computer
SERIAL(female)
DIN 8-pin (male)
Serial adapter
(ET-ADSER : sold
separately)
You must use only RS-232C Serial
Interface Cable with ferrite core,
type ET-ADSER.
Pin layout and signal names
for SERIAL connector
1
2
3 5
6 8
DIN 8-PIN connector
seen from outside
Pin Signal
Contents
No. name
% RXD Received data
& GND
' TXD Transmitted data
#
$ Connected internally
(
) NC
* NC
60-E
NGLISH
Communications settings
Signal level RS-232C
Sync. method Asynchronous
Baud rate 9600 bps
Parity None
Character length 8 bits
Stop bit 1 bit
X parameter None
S parameter None
Basic format
The data sent from the computer to
the projector is transmitted in the
format shown below.
STX Command : Parameter ETX
Start byte 1 byte End byte
(02h) (03h)
3 bytes 1 byte–5 bytes
NOTE:
B The projector can not receive
the command for 10 seconds
after the lamp is switched on.
Wait 10 seconds before
sending the command.
B If sending multiple commands,
check that a response has been
received from the projector for
one command before sending
the next command.
B When a command which does
not require parameters is sent,
the colon (:) is not required.
B If an incorrect command is sent from
the personal computer, the "ER401"
command will be sent from the
projector to the personal computer.
Control commands
The commands which the personal computer can use to control the projector
are shown in the following table.
Control
Command
Contents
In standby mode, all commands other than
the PON command are ignored.
PON Power ON
B The PON command is ignored during
lamp ON control.
B If a PON command is received while the
cooling fan is operating after the lamp
has switched off, the lamp is not turned
POF Power OFF
back on again straight away, in order to
protect the lamp.
Parameter
AVL Volume
000–063(Adjustment value 0–63)
Parameter
Input signal
IIS VID=VIDEO
selection
RG1=RGB1(YP
Parameter
0 = Standby
Lamp ON
Q$S 1 = Lamp ON control active
condition query
2 = Lamp ON
3 = Lamp OFF control active
Cable specifications
(When connected to a personal computer)
At the projector
1
2
3
4
5
6
7
8
Remarks
SVD=S-VIDEO
P 1) RG2=RGB2(YP P 2)
B R B R
At the computer
(DTE specifications)
7
8
3
5
2
6
1
4
9
E -61
NGLISH