Hall Research HR-4P - Manual (Page 5)

Programmable Serial Controller
3
1. Introduction
1.1 General
The Model HR-4P is a programmable RS-232 device designed for control & automation
of a Projector, LCD, or any other device with serial port and a compatible digital interface.
The unit has 4 configurable I/O lines that can sense dry contact closures or Voltage
levels. It can detect “Low to “High” or “High to Low” transitions as well as “High” or “Low”
on Power-Up. The RTS (Output) and CTS (Input) lines in the RS232 DB9 connector can
also be used to control an output or sense an input.
Each Input line state (high or low) can be configured to send RS232 commands at any
baud rate; control Digital Outputs or to optionally send IR Remote Control Codes.
Hall Research provides a powerful Windows® based application (available on-line at
http://www.hallresearch.com or on CD upon request) that is used to easily create
complex control sequences that describe the desired actions and to then upload them
into the HR-4P, via a user supplied Null Modem RS232 cable. The information is stored
in non-volatile E2Prom which retains the information even if the power is lost. As your
future needs change, the information can then be extracted from the HR-4P and modified
as needed or copied into other HR-4P units.
The HR-4P has the ability to store up to 10 different command strings and can learn up
to 32 different IR remote control codes for later playback.
1.2 Features
9 Compact, Reliable, and Economical
9 10 user-programmable Command Strings
9 32 user-programmable IR Memory
9 User configuration for up to 4 Inputs, 4 Outputs or any combination
9 Optional IR Remote Control Learn and Playback
9 Front panel LED Power indicator
9 Windows™ GUI Software
9 Made in USA