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3.
System Version
The JSD-100MA is continuously being improved. New features are added through software/firmware updates
and replacement of plug-in modules. This manual describes the JSD-100MA versions available at this writing.
Firmware/software versions for the systems described in this manual are listed in the table below:
4.
System Overview
4.1
System Description
The JSD-100MA cinema sound processor is specially designed for digital cinema applications. Low noise and
low distortion 96 kHz processing ensures superb presentations. In addition to the eight standard formats, the
JSD-100MA offers two fully configurable formats. The two user-configurable buttons can be configured to
support a variety of existing and future formats. They may also be used to duplicate an existing format but at
a different fader level to simplify desired volume changes between content types. The front panel display
shows the current fader level, the format name (which is user configurable), and the measured audio level on
each channel of the main audio output. The built-in bypass audio circuitry Ensures that the presentation goes
on in the unlikely event of a system failure.
The JSD-100MA is “automation friendly.” It features the standard DB25 parallel automation interface, an RS-
232 (EIA232) interface, and Ethernet. The Ethernet interface accepts 5 simultaneous TCP connections to allow
control by a digital cinema server and other equipment while simultaneously being monitored over another
TCP connection.
The Graphical User Interface runs on Windows XP®, Windows 7®, Windows 8®, and Windows 10® operating
systems. It allows for complete system configuration, monitoring, and firmware updates over USB, Ethernet,
or RS-232. The JSD-100MA graphical user interface simplifies installation by including sound pressure level
measurement and automatic equalization. System monitoring, control, and firmware update functions are
also available on a standard web browser.
The JSD-100MA includes a precision 1/3 octave RTA that uses the filters specified in ANSI S1.11-1986. The JSD-
100MA also does sound pressure measurements using the C-weighted filter specified in ANSI S1.4-1983. The
RTA and SPL meter can be used to equalize an auditorium manually or automatically.
The JSD-100MA includes an automatic equalization feature (auto-EQ). Auto-EQ uses user-defined microphone
calibration files and standard or user-defined equalization curves to automatically adjust the graphic equalizer
on each channel.
The JSD-100MA is also “diagnostic friendly.” The system logs the last 32,000 events (format changes, level
changes, internal temperature, loss of AES audio, etc.) to internal flash memory. Log data can be reviewed on
the GUI or the web interface. Current operational status, including selected format, fader level, and measured
audio output levels, is available on the GUI and on the web interface. The current status of the system is also
available over SNMP (Simple Network Management Protocol).
Component
Version
Graphical User Interface (GUI)
1.0.1
Main PIC
160610
DSP 1
1151217
DSP 2
2151217
