JVC DLA-NX5 Operation Manual 1 - Page 76
Others, External Control, RS-232C Specifications, TCP/IP Connection
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External Control It is possible to control this unit by connecting it to a PC using an RS-232C cross cable (D-sub 9-pin). The projector can be controlled by connecting it to a PC through the computer network with a LAN cable for control commands to be sent to the projector. Æ "Network" (P. 65) 0 Please use it after you have gained proper understanding from professional books or consulting the system administrator. RS-232C Specifications This Unit 1 5 2 Pin No. Signal RxD Function Receive data Signal Direction PC " This unit 6 9 3 TxD Transmission data This unit " PC 5 GND Signal ground - 1, 4, 6 - 9 N/C - - 0 PC refers to the controller, such as a personal computer. Mode Non-synchronous D0 D1 D2 D3 D4 D5 D6 D7 Character length 8 bit Start bit Stop bit Parity Start bit None 1 Stop bit 1 Data rate 19200 bps Data format Binary TCP/IP Connection Before controlling via LAN, it is necessary to establish connection of the TCP layer by a "3-way handshake", followed by sending out "PJREQ" and receiving "PJACK" within five seconds after the projector sends out "PJ_OK" for connection authentication. If you are unable to complete sending within five seconds, or when "PJ_NG" or "PJNAK" is received, check the operating status of the projector, followed by performing the steps again starting from establishment of a TCP connection. Projector Within 5 Seconds PJ_OK PJACK Establishment of TCP Connection TCP Port No. 20554 3-way Handshake Projector Control Controlling PC PJREQ Connection Authentication Procedure Others 76