Dell 4220 Projector Command Line Interface Guide_4220
Summary
This RS232 protocol document for the Dell 4220 and 4320 projectors provides detailed technical specifications for serial communication control, including pin assignments for both the projector-side mini DIN-6 connector and the RS232 cable-side connector, communication settings at 19200 bps with 8 data bits and no parity, and the complete command syntax with header, CRC16, and payload structures. It defines command codes for power, system status, lamp hours, and includes projector response message formats with error codes. Designed for AV 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
Manual Details
| Brand | Dell |
|---|---|
| Pages | 6 |
| File Size | 199.68 KB |
| Published | July 01, 2026 |
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Frequently Asked Questions
What are the required communication settings for setup?
The connection must use a Baud Rate of 19200 bps, 8 Data Bits, None Parity, and 1 Stop Bit.
How is the projector's status requested via RS232?
Send the command: Success (0x00), Command Code (0xff) for System Status, and check Byte2 for the return status.
What information must be included in a basic control command packet?
A full packet includes Header [H], Address Code [AC], Size of Payload [SoP], CRC16 [CRC], MsgID [ID], MsgSize [SoM], COMMAND, and optionally Value.