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IFP50-3 RS-232 Protocols: Difference between revisions

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# Use of crossover (null modem) cable for connection
# Use of crossover (null modem) cable for connection
# Pin Assignment:
# Pin Assignment:
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Revision as of 10:22, 2 July 2020

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IFP50-3 RS-232 Protocols
Introduction
Remote Control
Using Gestures
Connecting Devices
Using the ViewBoard
On-Screen Display Menu
ViewBoard Settings
Pre-installed Applications
RS-232 Protocols
Specifications
Regulatory and Service Information
Safety Precautions
Troubleshooting
Maintenance

RS-232 Protocol

This document describes the hardware interface spec and software protocols of RS-232 interface communication between ViewSonic LFD and PC or other control units with RS-232 protocol.

The protocol contains three command sections:

  • Set-Function
  • Get-Function
  • Remote control pass-through mode
NOTE: Below, “PC” represents all the control units that can send or receive the RS-232 protocol command.

Description

RS-232 Hardware Specification
ViewSonic LFD communication port on the rear side:

  1. Connector type: DSUB 9-Pin Male (or 3.5 mm barrel connector)
  2. Use of crossover (null modem) cable for connection
  3. Pin Assignment:
Pin # Signal Remark
Female DSUB 9-Pin 1 NC
2 RXD Input to Display
3 TXD Output to Display
4 NC
5 GND
Male DSUB 9-Pin 6 NC
7 NC
8 NC
9 NC Provide +5V/2A power for external specific dongle *3.0
frame GND
Item Signal Remark
3.5 mm barrel connector
(alternative for limited space) 		Tip TXD Output to Display
Ring RXD Input to Display
Sleeve GND
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