Hall Research HR-16P - Manual (Page 5)

16-Channel Programmable Serial Device
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1.0 General
Thank you for purchasing the Hall Research HR-16P. The HR-16P is a
programmable RS-232 serial device designed to control any device with a
serial port based on sensing level changes (open-to-close and close-to-
open, or digital high to low and vice versa).
The HR-16P has 16 discrete inputs that sense a DC voltage level or
contact closure (see figure below for input terminal configuration). It
detects both “low-to-high” and “high-to-low” transitions of these discrete
inputs and issues corresponding commands out the serial port of the HR-
16P to the serial device (typically a video projector but not limited to
that).
The commands can be any ASCII (or non-ASCII) data with programmable
delays embedded in the string. The commands can also be a complex
multi-part string, such as having commands with delays and then more
commands.
Hall Research provides a powerful Windows® based application that is
used to create the data files and for uploading them to the HR-16P, via a
supplied serial cable. The latest version of this file is available for free
download from Hall Research website. www.hallresearch.com
The unit is supplied with a 5v DC power adapter and a serial cable (null-
modem or crossover cable for programming the unit). The inputs are on
screw terminals with headers that can be unplugged for easy assembly.
A typical application would be to send commands to turn a projector on
and off or select different inputs.
Figure 1 – Model HR-16P Front and Rear