Dell 4220 Projector Command Line Interface Guide_4220(English only)
Summary
Dell 4220/4320 RS232 Protocol Document, a technical communication specification for Dell projectors. Defines RS232 serial protocol including pin assignments, baud rate settings, data format, and command syntax for remote control operations. Provides command structures for power control and system status queries. Intended for AV system integrators and control system programmers.
Page 1 Text Content
Dell™ 4220/4320 RS232 Protocol Document RS232 Projector Pin Assignment (Facing Projector)
RS232 Serial Communication Cable Pin Assignment (Facing Cable)
Pin Assignments RS232 PIN DESCRIPTION MINI DIN-6
2 TXD 5 3 RXD 3
5 GROUND 1, 2
7 Not Used 6 8 Not Used 4
Note 1: The RS232 cable is not provided by Dell.
RS232 Protocol Communication Settings
Connection Settings Value Baud Rate 19200 bps Data Bits 8 bits Parity None Stop Bits 1 bit Flow control None
Command Types To display the OSD menu and adjust the settings.
Page Summary Contents For Dell 4220 Projector Command Line Interface Guide_4220(English only)
Manual Details
| Brand | Dell |
|---|---|
| Pages | 6 |
| File Size | 199.68 KB |
| Published | June 27, 2026 |
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Frequently Asked Questions
What are the communication settings for RS232?
The required settings are a Baud Rate of 19200 bps, 8 data bits, No Parity, 1 stop bit, and No flow control.
How do I send a command to power on the projector?
Use the following sequence: 0xbe, 0xef, 0x10, 0x05, 0x00, 0xc6, 0xff, 0x11, 0x11, 0x01, 0x00, 0x01.
What is the Pin Assignment for RS232 communication?
TXD and RXD are connected to Pins 2 and 3, respectively. Ground connects to Pin 5 (and other designated pins).
How can I check the current firmware version?
Send a command with Address Code '10' and Command Code of Firmware Version ('0x30'). The response includes the version in bytes 2-7.