JVC DLA-X70R Instructions - Page 87

RS-232C Interface

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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. RS-232C Specifications This unit     Pin No. 2 3 5 1,4,6 - 9 Signal RxD TxD GND N/C Function Receive data Transmit data Signal ground - Signal Direction PC→This unit This unit→PC - ● PC refers to the controller such as a personal computer. Mode Non-synchronous Character Length Parity 8 bit None D0 D1 D2 D3 D4 D5 D6 D7 Start Bit 1 Stop Bit 1 Start Bit Stop Bit Data rate 19200 bps Data format Binary TCP/IP-connection 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 "PJ_OK" and - within 5 seconds after sending a "PJREQ" - to receive "PJACK". Please perform this operation - after confirming the operating status of the projector - again after establishment of a TCP connection, if you cannot send within 5 seconds "PJ_NG" or could not receive "PJNAK". Within 5 seconds Projector ̥̟_̤̠ ̥̟̖̘̠ TCP-layer connection establishment TCP port number 20554 Three-way handshake Projector Control Control PC ̧̥̟̦̚ Connection authentication procedure Others 87

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87
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