Others
69
ENGLISH
RS-232C Interface
It is possible to control this machine, if it is connected by an RS-232C cross cable (D-Sub9
pin) to a PC. Otherwise, this machine can be controlled via a computer network by connecting
it with a LAN cable and sending of control commands. Please use it after you have understood
this by reading professional books, or by discussing it with a system administrator.
Before you can control it via LAN, you have to establish a TCP-connection via a "3-way-handshake". It is
necessary for a connection authentication to send from the projector "P
J
_O
K
" and - within 5 seconds after
sending a "P
J
REQ"
–
to receive "P
J
AC
K
". Please perform this operation
–
after con
fi
rming the operating
status of the projector - again after establishment of a TCP connection, if you cannot send within 5 seconds
"P
J
_NG" or could not receive "P
J
NA
K
".
RS-232C Speci
fi
cations
Pin No.
Signal
Function
Signal Direction
2
RxD
Receive data
PC→This unit
3
TxD
Transmit data
This unit→PC
5
GND
Signal ground
-
1,4,6 - 9
N/C
-
-
Mode
Non-synchronous
Character Length
8 bit
Parity
None
Start Bit
1
Stop Bit
1
Data rate
19200 bps
Data format
Binary
This unit
Start Bit
Stop Bit
D6 D7
D4 D5
D2 D3
D0 D1
●
PC refers to the controller such as a personal computer.
TCP/IP-connection
Control PC
Projector
PJ
_
OK
PJREQ
PJACK
Connection authentication procedure
Within 5 seconds
Projector Control
TCP-layer connection establishment
TCP port number 20554
Three-way handshake
Содержание D-ILA DLA-RS40
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