JVC DLA-X30, DLA-X90R, DLA-X70R manual RS-232C Interface, RS-232C Specifications, TCP/IP-connection

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.	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	-	-

●PC refers to the controller such as a personal computer.

Mode

Non-synchronous

Character Length

8 bit

D0

D1

D2

D3

D4

D5

D6

D7

Parity

None

Start Bit

1

Bit

Stop

Bit

Start

Stop Bit

1

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".

Projector

Within 5 seconds

ＰＪ_ＯＫＰＪＡＣＫ

TCP-layer connection establishment TCP port number 20554 Three-way handshake

Others

Control PC

Projector Control

ＰＪＲＥＱ

Connection authentication procedure

87