USL LSS-100 User Manual

Page 12

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LSS−100P Installation & Operation Manual

12

Script and DCP Test Run


The LSS-100P is shipped with scripts for use with the LST-100 DCP. This section covers running the test
DCP and configuring limits on the scripts.

1. Create a show to play the LST-100 DCP on the digital cinema server.
2. If the server supports user-defined cues over Ethernet, instruct the server to send this command

when the DCP starts: lss100.sys.script_run

3. The text should be terminated with a carriage return (0x0d or \r).
4. If the server does not support user-defined cues over Ethernet, define a cue at the start of the

DCP playout to pulse (500ms) a contact closure between terminals A and ground on the USB
adapter board. This contact closure or the Ethernet command causes the LSS-100P to start
executing script 0 (the first script).

5. Add appropriate cues to the playlist to set the sound processor at reference level (0.0dB or 7.0)

and take audio from the digital cinema server, turn on the projector lamp, open the dowser,
turn off the house lights, etc.

6. Run the test show. When it is complete, verify that data has been saved in the log. Print the log

for reference in the next few steps.

7. Click the “Command Scripts” link at the top of the configuration page. A page similar to Figure

14 should appear. Lines starting with # are comments and are ignored. Blank lines separate
scripts. The first script is script 0. There’s a blank line at the end of script 0. The next line is the
start of script 1. Only insert one (not more) blank lines between scripts. There should be nothing
on the blank lines between scripts (not even space characters). Fields are delimited with the
pipe character (|). The various capture commands have these fields:

a) The command (“lss100.sys.capture_spl”).
b) A user defined description of what is being measured (“Left Low”).
c)

A minimum limit (“75”).

d) A maximum limit (“85”).

8. Based on the test run of the show, adjust the minimum and maximum values for each

measurement. The measured SPL values will vary as different bands and different speakers are
run. We suggest setting limits 3dB below and above the values measured on the test show.
Failures in the audio equipment will result in values outside this range. Note that the limits set
for luminance and chromaticity are based on SMPTE standards and should not require
adjustment. Note that the description portion of each line of the script is user definable.
Descriptions in other languages may be substituted, if desired. These descriptions will be used
in the LSS-100P internal log, graphing, and web services reporting. If there are no limits on a
measurement, leave the minimum and maximum out (end the line after the description).
Internally and in web services reporting, a log record with no limits has its minimum set to -9e9
and its maximum set to +9e9.

9. If web services reporting is desired, put the URL of the server in the lss100.sys.log_post line. For

example, “lss100.sys.log_post|http://lss.uslinc.com/xml/post.php” posts the log to the USL LSS
server. The URL can be either HTTP or HTTPS. It cannot include a port number (the server must
accept posts on the default HTTP and HTTPS ports).


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