Features - Usl LSS-100P Installation And Operation Manual

Features


Luminance Measurement – Uses a precision detector with a photopic spectral response.

Chromaticity Measurement – Uses a precision RGB sensor and calculates XYZ, xy, and CCT.

SPL Measurement – Uses a DSP generated C-weighting filter and RMS detector for accurate
results regardless of signal waveform or crest factor. SPL measurement is averaged over 1.33
seconds to yield a stable reading with pink noise.

IR Measurement – Measures relative IR illumination of screen to detect issues with IR emitters
used for hearing impaired audio, visually impaired audio, or closed captions.

Temperature Measurement – Includes an internal temperature sensor that can be used to
approximate auditorium temperature and track changes.

Web Interface – Displays live measured data along with user defined reference values. The web
interface supports language translation tables based on the language requested by the browser.
Currently the web interface supports English (en) and Chinese (zh).

Automatic Start Clips – Three Red/Green start clips packaged as DCPs that can automatically
trigger user scripts in the LSS-100P.

TCP Command Interpreter – Accepts commands over Ethernet to log data, send current
measurement, start a measurement script, etc.

Command Scripting – An unlimited number of user scripts (up to a total of 65,530 characters)
may be defined. Scripting permits a sequence of measurements to be made automatically.
Command scripts can send TCP commands to other devices. Command scripts can also put pink
noise on individual speakers driven by a Dolby® CP850.

Script Triggering – Scripts are typically triggered using a red/green flash sequence at the start of
the test show. As an alternative, scripts may be started with a command over TCP or by a
contact closure. See Appendix A – Red/Green Flash Script Start for information on the flash
sequence design. See Appendix B – USB Power Interface and Contact Closure Script Start for
information on using contact closures to start scripts. See lss100.sys.script_run in Figure 19 -
LSS-100P TCP Commands for information on starting a script with a TCP command.

Logging with Limit Checking and Graph Generation – The LSS-100P can capture measurements
to a log. The log shows the measurement in red if it is outside user defined limits. The log can be
downloaded as a CSV file for analysis in a spreadsheet. The LSS-100P generates graphs of logged
data showing trends of the measured data along with limit lines.

Web Services Posting – The LSS-100P can post log data to one or more HTTP or HTTPS servers.
Log data is sent as XML for simple parsing into a database for report generation. The USL
provided LSS-DB
of LSS-100P devices and generate reports and alerts.

Power Over Ethernet – The LSS-100P is powered by a POE enabled Ethernet switch or the
supplied power injector. Use of POE simplifies installation since fewer wires need to be run. The
LSS-100P is an IEEE 802.3af class 1 powered device. It may be powered by "active" (power
sources that use the POE signature) or "passive" (power sources that do not use the standard
POE signature) 48V POE injectors. The LSS-100P consumes less than 1.5W.

USB Power – As an alternative, the LSS-100P can be powered by a USB power supply. See
Appendix B – USB Power Interface and Contact Closure Script Start for information on using
USB power.
v160817
LSS−100P Installation & Operation Manual
can run on a user-provided server to gather information from a large number
6