HP xp8000 HP xp8000 series digital projector - RS232 Protocol Reference - Page 5

RS-232 Protocol Reference RS-232 connections This guide describes how to configure the projector for RS-232 communication with an external controller, and describes the RS-232 command keywords used to send requests to the projector. Cable connections Use an RS-232 cable to connect a controller to the projector's D-sub 9-pin connector. The table below lists the connector's pin outputs. ✎ When connecting a computer to the projector, use a null-modem cable. D-Sub 9-Pin Connection Pin Signal 3 TxD 2 RxD 5 GND Direction data from projector to controller data from controller to projector - Communication settings Make sure the controller device uses the following settings for RS-232 communication with the projector. ❏ 9600 baud ❏ 1 start bit + 8 data bits (D0 = LSB, D7 = MSB) + 1 stop bit ❏ no parity ❏ full duplex communication channels (no flow control) ❏ no handshaking RS-232 protocol reference 5