Glossary Of Terms; Protocol Stack Structure - Sony VPL-DX125 Protocol Manual

1. Overview
1-1. Introduction
The projector is remotely controllable over RS-232C as well as Ethernet. It is useful for setting up the
projector away from the operator.
This protocol manual describes the specifi cations such as packet format and procedures for controlling the
projector.
In the following sections below, the term "CONTROLLER" is used as a device which controls the projec-
tor. CONTROLLER can be a PC or other specifi c device that is able to handle RS-232C or Ethernet.
Although most of commands are available for both RS-232C and Ethernet, some commands are dedicated
to Ethernet.
* Ethernet is a registered trademark of Xerox Corporation.

1-2. Glossary of Terms

Terms Abbreviated
_
CONTROLLER
_
PROJECTOR
SDAP Simple Display Advertisement Protocol
SDCP Simple Display Control Protocol
_
PJLink
DDDP Dynamic Device Discovery Protocol
CIP Crestron Internet Protocol

1-3. Protocol Stack Structure

The protocol stack structure diagram is shown below. Though the stack is drawn for RS-232C and Ether-
net separately, the following portions are common.
Layer Name Description
Sub Command Value is assigned for projector's functions. Refer to the section 2-1 for detail description.
Simplifi ed Command Packet format for sending/receiving "Sub Command". Refer to the section 3-6-1 for detail
description.
VPL-EX225
Table 1-1 Glossary of Terms
Description
Command initiator such as PCs.
Front projector. (device)
Protocol name for advertising the projector status over
Ethernet.
Protocol name for controlling projector over Ethernet.
Protocol name for controlling projector over Ethernet.
AMX Device Discovery is the protocol name by AMX
to enable to confi gure the AMX control system and
other intended devices.
Protocol name used in Crestron RoomView and
control system by Crestron.
Table 1-2 Common Portions in Protocol Stack
1 (E)