USL JSD-100 Manual - Manual (Page 13)

Page 13
4.3 Model Numbers
The output module is field replaceable to allow a variety of output configurations. Available output configurations
include 8 analog outputs, 16 analog outputs, or 32 channels of AES/EBU audio. When more than 8 outputs are
available, the outputs can be used for additional auditorium channels (such as 13.1), or as outputs for the internal
crossovers.
The various JSD-100 options are identified by model number suffixes as shown in the tables below. The first letter
identifies input options such as the number of AES inputs or decode options. The second letter indicates the
number and type of outputs, such as whether they are analog or AES. Note that all units also have analog HI/VI-N
outputs in addition to the outputs listed in the tables below.
A JSD-100MA has 16 AES input channels, Dolby Digital® decoding for alternate content and 16 analog outputs.
In the transition to digital cinema, the industry is adopting new names and abbreviations for speaker locations.
Generally, the first letter is capitalized and either L for left, C for center or R for right. The second and third letters,
if present, are lower case and further define the position.
New Name
(abbreviation) Description Previous Name
(abbreviation)
Left (L) Typically positioned behind the screen to the far left edge, horizontally,
of the screen center as viewed from the seating area. Left (L)
Right (R) Typically positioned behind the screen to the far right edge,
horizontally, of the screen center as viewed from the seating area. Right (R)
Center (C) This loudspeaker position is typically behind the screen corresponding
to the horizontal center of the screen as viewed from the seating area.
Also the intended speaker position for mono reproduction. Center (C)
Low Frequency
Effects (LFE) Screen low frequency effects subwoofer loudspeaker(s). This is typically
one or more band-limited low frequency only loudspeakers at the
screen end of the room. Subwoofer (SW)
Left surround
(Ls) Typically an array of loudspeakers positioned along the left side of the
room starting approximately 1/3 of the distance from the screen to the
back wall and the left side of the rear wall. Left surround may not
extend to the back wall of the auditorium in some soundfield
configurations, particularly when Left rear surround is present. Left Surround (LS)
First Suffix Letter Description USL Module Part Number
L 8 channel AES input, no Dolby Digital® decode N/A
D 8 channel AES input, Dolby Digital® decode on alternate content DI-84
M 16 channel AES input, Dolby Digital® decode on alternate content DI-80 & DI-84
Second Suffix
Letter Description USL Module Part Number
None 8 channel analog output JSDR-100
A 16 channel analog output (full range 13.1 channels, biamp 5
screen channels, triamp 3 screen channels) JSDR-123
D 32 channel AES output (full range 13.1 channels, biamp or triamp
5 screen channels) JSDR-110