ViewSonic CDE5560T Betriebsanweisung PDF herunterladen (Seite 46)

9. RS-232 Protocol

9.1 Introduction

This document describes the hardware interface spec and software protocols

of RS232 interface communication between ViewSonic Commercial TV / Digital

Signage and PC or other control unit with RS232 protocol.

The protocol contains three sections command:

• Set-Function

• Get-Function

• Remote control pass-through mode

※ In the document below, “PC” represents all the control units that can sent or

receive the RS232 protocol command.

9.2 Description

9.2.1 Hardware specication

Viewsonic TV communication port on the rear side:

(1) Connector type: DSUB 9-Pin Male

(2) Pin Assignment

Male DSUB 9-Pin

(outside view)

Pin # Signal Remark

1 NC

2 RXD Input to Commercial TV or DS

3 TXD Output from Commercial TV or

4 NC

5 GND

6 NC

7 NC

8 NC

9 NC

frame GND

* Use of crossover (null modem) cable required for

use with PC

[Special case]

3.5mm barrel connector

Pin # Signal Remark

Tip TXD Output from Commercial TV or

Ring RXD Input to Commercial TV or DS

Sleeve GND

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ViewSonic CDE5560T Betriebsanweisung Seite 46