PJLink (jp.or.jpmia.pjlink)

PJLink is a standardized communication protocol developed by the Japan Business Machine and Information System Industries Association (JBMIA) to enable uniform network control of projectors across different brands. It operates over Ethernet, typically using port 4352, to perform functions like power on/off, input switching, and monitoring.

Protocol

• Manufacturer: Japan Business Machine and Information System Industries Association
• Compatibility: Projectors implementing the PJLink control protocol
• Namespace: jp.or.jpmia.pjlink
• Protocol: TCP
• Port: 4352

Configuration Options

Argument	Type	Description
password	str	Required: The password set when configuring the projector.

WARNING

While PJLink can often be configured within the projector without a password, it is almost always required for PJLink to function correctly. As a habit, always set a PJLink password.

Interfaces

• Ping
• Projector
• Raw
• Reboot
• System

Implementation Notes

PJLink Class Support

Use the class_info method from SystemInterface to determine which PJLink class the projector supports before using Class 2 specific features.

• Class 1 Commands: errors, input_num, inputs, lamp, name, shutter
• Class 2 Commands: freeze, input (uses INNM)