junger C8000 User manual

C8000_160427.doc
digital audio
modular
processing system
C8000
System Manual
Modular chassis
General information
Installation
System configuration
Warrenty information
Declaration of conformity

digital audio
modular
processing system
C8000
modular chassis
C8911/C8912/C8922/C8932/C8934/C8942
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• aluminium side panels chromated, aluminium cross extrusions
• RF protection by 0.8mm steel covers, zinc passivated
• external dimensions in accordance with DIN 41494
C8911
• 19" modular chassis, 1RU
• up to 3x 8HP or 6x 4HP space available
• one power supply with mains filter and power-switch
• card installation from front side
• 240mm depth
C8912
• two power supplies with mains filter and power-switch
• card installation from rear or front side
C8922
• 19" modular chassis, 3RU
• one internal power supply,
appliance socket with mains filter and power-switch
• card installation from one side only
(front or rear), 76HP
• 240mm depth
C8932
• 19" modular chassis, 3RU
• two power supplies C8901, redundant mode, load balanced
• appliance sockets with mains filter and power-switch
• card installation possible from both sides: front side - 72 HP, rear - 76 HP
• 435mm depth
C8934 split frame features
• 4 islands each one with 8 slots back to back
marked by colored slides
• audio clock distribution and busses are local
for each island
• only the CAN bus is wired across all slots
• card installation possible from both sides: front side - 64 HP, rear - 76 HP
C8942 Default air flow: Rear to front side
• 19" modular chassis, 3RU
• two power supplies C8904, redundant mode, load balanced
• appliance sockets with mains filter and power-switch
• card installation from one rear - 76HP
• 420mm depth
• 2 front panel fans with SNMP monitoring
• Air flow may be reversed by mounting the fans
the other way around

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modular
processing system
C8000
general information / installation
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GENERAL FEATURES
configurable and scalable audio processing system
3RU-cards for installation in 19" modular chassis in accordance with DIN 41494
efficient system design for multichannel applications
up to 64 audio processing channels in one frame
I/O INTERFACING
digital 8ch I/Os (AES/EBU: bal. XLR, 110 Ohm or unbal. BNC, 75 Ohm)
optional sample rate converters
MADI interfaces
analog I/Os using sophisticated ADC and DAC technology
24bit audio resolution
3G-, HD- and SD-SDI interface for embedded audio processing
AUDIO PROCESSING
scalable digital audio processing system
3RU-cards system with functionality equivalent to 19" 1RU units from Junger Audio
24 bit processing, specific modules can operate up to 96kHz sampling rate
SYNC INTERFACING
External sync. sources - AES, Word Clock, BB, Tri-Level
REMOTE CONTROL
TCP/UDP/IP over Ethernet
web technology based GUI
application specific GUI
http based API
build in SNMP agent
hardware remote controller brc8x
CODING OF MODULE NUMBERS

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modular
processing system
C8000
system configuration
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Configuration of a C8000 frame
The C8k frame holds the cards physically. They are electrically connected to the back plane of the frame by a
64pin connector. The back plane distributes 5V power, several clocks, the CAN-bus, a few status and
address signals as well as the digital audio data from and to processors or I/O devices.
Audio bus line assignment:
32 audio bus lines S01 to S32 are used for the distribution of digital audio data. The majority of the modules
use the same 2ch format, i.e. 2 audio channels are multiplexed on to one output. Considering a 2ch
processing (DSP) module, one needs 1 of these 32 lines to connect an input device (e.g. AES IN) via Sx to
the processing module (DSP) and one line to connect the output of the DSP module to an output device (e.g.
SDI embedder) via Sy.
There is no rule how to use the 32 lines with one exception:
! You must not connect more than one device output to a bus line at a time. If you connect more than
one device output to a bus line, you will destroy the audio signal.
But you can connect as many device inputs as needed to one device output
(e.g. for signal distribution or signal conversion purposes).
Each of the legacy modules has rows of jumpers to connect its output(s) to one of the 32 bus lines.
Some modules have more than one input / output so they need more than 2 bus lines to connect to other
devices.
At the module input side we have different solutions. Old devices also have rows of jumpers to connect to a
bus. Newer devices will select the relevant bus line by an electronic routing circuit.
You must tell it by one or more rotary encoder(s) from which bus line it should gather the audio data.
Newer devices like the C8402/03/04/05 (SDI Embedder / De-Embedder), the C8086+ (8 channel
LevelMagic), C8082 (5.1 fail over / switch over / ducking) as well as the 8305/06 (new MADI I/Os) and
8601/11/12 (Dolby Encoder / Decoder modules) and their successors C8621/31/32 have electronic output
routing also and the ability to multiplex 8 audio channels on one bus line. This increases the density of the
audio bus system dramatically. Such devices are backward compatible because they can also send and
receive 2 channels per bus line. See an example of such module carrier boards further below.
Please refer to the respective manual for details.
AES
DSP
SDI
Sx Sy

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modular
processing system
C8000
system configuration
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Below is an example of a module carrier board for an old processing module:
On the left hand side you see the rotary encoders. They have 16 settings (0 to F) to select one of the
bus lines S1 to S16. If you need access to bus lines higher than 16, you must replace the adjacent range
jumper labeled: “+16”. Now the rotary encoder will select bus lines S17 (0) to S32 (F).
For two channel devices the rotary encoder labeled “IN-1” and jumper row labeled “OUT1” are used. For 4
channel devices the rotary encoders labeled “IN-1” and “IN-2” and jumper rows labeled “OUT1” and “OUT2”
are used, and so forth.
! On some modules the IN4 rotary encoder and the range jumper are used to setup special
application modes (see respective manual for details).
ADDRESS
Input bus number S1 (0) to S16 (F)
OUT
CAN address (ID) 0 - F

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modular
processing system
C8000
system configuration
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Below is an example of a module board of a newer generation processing module - C8086:
Since this type of module has an electronic output routing facility, great care must be taken when installing or
exchanging a new module for an existing system!
DIP-switch #1 (no label) serves for the CAN address “+16” selection. If it is set to ON, the range for the
CAN address rotary encoder lasts from 0x10 to 0x1F.
If a frame controller is installed, the DIP-switch #2 must be set to REMOTE=ON. All settings after power up
are taken from an NV (non volatile) memory and the remote control via the Frame Controller is enabled.
Otherwise a basic configuration will be taken from the settings of the I/O and MODE rotary encoders if
implemented (see individual module manuals for details).
If the above DIP-switch #3 is set to BUS-EN=ON, the bus configuration will be taken from the
NV memory after power up. If an unknown bus configuration is stored, it can cause a conflict with other
modules inside the frame (short cuts between several outputs).
Important Note! If you are not sure about the output bus configuration you must turn BUS-EN=OFF before
inserting such module. Now all bus outputs are in Tri-State-Mode (i.e. off).
You can use the frame controller to configure the board. The configuration will automatically be stored into
the NV memory. For testing purposes you may temporarily enable the bus drivers via the GUI.
To enable the configuration for the next power up you must pull out the module and set BUS-EN=ON.
DIP-switch #4, TDM=ON enables the multiplexing of eight audio channels on one bus line on the first
available audio bus when not in REMOTE mode.

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modular
processing system
C8000
system configuration
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Nearly the same applies to the C8402/03/04 SDI Embedder / De-Embedder with slightly different
DIP-switch labeling:
The MODE DIP-switch allows for setting of the operating modes:
If DIP-switch #1 is set to MASTER, the module provides the necessary clocks for audio signal distribution for
the C8k frame. In this case the Sync-Module must be removed!
You must use the frame controller to configure the board. Therefore the DIP-switch #2 must be set to
REMOTE=ON. All settings after power up are taken from an NV (non volatile) memory and the remote
control via the Frame Controller is enabled.
If the upper DIP-switch #3 is set to BUS-EN=ON, the bus configuration will be taken from the
NV memory after power up. If an unknown bus configuration is stored, it can cause a conflict with other
modules inside the frame (short cuts between several outputs).
TDM=ON enables the multiplexing of eight audio channels on one bus line.
The CAN/BUS DIP-switch determines the CAN-bus address of the module in hexadecimal values
from 0 – F. The coding is binary (D0=LSB, D3=MSB).
Older versions had a few more DIP-switches for hardware based settings of the Embedder and
the De-Embedder.

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modular
processing system
C8000
system configuration
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And finally here you see the actual design of a c8k module here from the compact C8492 module,
the 16 channel SDI I/O processor with optional bus access:
As a new feature you see the CAN-H switch above. That allows the module to operate with 1Mbit/s
CAN-bus speed. This speed enhancement is helpful if you must log multiple programs from multiple C8492s
in a compact 64 or compact 256 frame.
Since only a selected number of modules will support the higher CAN-bus speed, grate care must be taken
when setting up such a frame. All modules on the same CAN-bus must run on the same CAN-bus speed!
INIT
1: BUS-EN
2: H-CAN
3:
4: ID+16
5: MASTER
6:
SW1 ADDRESS

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modular
processing system
C8000
system configuration
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CAN address assignment:
In the above images you can see a very important switch labeled “ADDRESS” or “CAN” or “CAN/BUS”
respectively. It determines the module address for the CAN-bus. All devices that can be remote controlled
are connected to the CAN-bus of the frame. The CAN-bus is a two wire bi-directional bus. Each party must
have a unique address to allow for proper communication. Therefore it is of major importance that you
set a unique address for each module inside a frame. This scheme allows for 32 different module
addresses per frame: 0x0 – 0x1F (in hexadecimal notation).
Each module has a switch to set its addresses from 0x0 to 0xF (rotary encoder or BCD encoded dip-switch).
A defined DIP-switch is used to set the CAN address “+16” offset. See manual for details. Special modules
like the early GPI/O module C8817 have an automatic “+16” offset.
Other modules like the C8702 frame controller have a fixed CAN address (0x02).
Because the C8k System does not have slot encoding, you may place a module where ever you like. The
virtual location of modules in the OVERVIEW window of the GUI is derived from its CAN address. The
window is divided into 6 rows with 8 columns. First row contains the Frame Controller and Sync-Module(s).
Second row is empty. 3
rd
to 6
th
rows show all kind of manageable modules. Address “0” puts the modules
graphical box to the upper left place (row #3 left hand side), while address “1F” puts it to the bottom right
place (row #6 right hand side).
Synchronizing a frame:
The C8k frame is a digital audio processing system. Therefore it is of major importance that you synchronize
its digital inputs and outputs with other equipment in a signal distribution chain.
For standard applications the frame is equipped with a Sync-Module C8840 (see manual for details).
This module generates all relevant processing clocks and puts those clock signals on the back plane so all
devices can be synchronized properly. Because the sync signal distribution is driven by active components on
the back plane, there are only 4 slots (marked with red slide bars) at the rear of a frame at left hand side
which must be used to insert a module that synchronizes the whole frame. The sync module can run on
internal clock for stand alone applications or may be synchronized externally either by AES sync, Word Clock
or Video Black Burst. On a BNC output it provides the internal Word Clock of the frame to synchronize
other external devices.
Fail save operation with two sync modules:
For automatic fail over operation the frame may be equipped with two Sync-Modules (see manual for details).
One acts as the master while the other one is the slave. If the master loses its reference, the slave
automatically takes over the clock generation for the frame.
To ease this area of fail save operation, we have designed the C8840 Sync module that provides two
independent sync inputs and an automatic fail over inside.
Synchronizing a frame to an input signal:
If there is a demand by the application, the frame can also be synchronized via SDI or MADI. This must be
performed with great care because the synchronization relies on one signal feed. If this SDI or MADI signal
fails for any reason the whole frame is no longer synchronized. In this case the frame will run “free” on
approx. 48 kHz sample rate. Processing channels of other services will be influenced (clicks and pops).
If synchronizing the frame via SDI or MADI, such interface must be inserted instead of a
SYNC-Module into one of the four above mentioned red colored slots. Such module must be set to
MASTER mode in order to provide the clocks.

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modular
processing system
C8000
system configuration
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Working with asynchronous input signals:
In case it is not possible to synchronize the frame to the signal source, you must use Sample Rate
Converters at the input stage. Such Sample Rate Converters where available for AES/EBU input modules as
an option (piggyback PCB) or are designed in for the C8188/89. The SDI Embedder / De-Embedder modules
C8402/03 may have built-in SRCs as an option, which you can activate on demand.
Important Note! If an embedded SDI stream contains Dolby® (E, D, D+) encoded or other Non Audio
signals you must not use SRCs because they will destroy the structure of the data stream. In this case you
must feed the Dolby® encoded PCM tracks directly from the De-Embedder to the Embedder, while the other
audios are routed through SRCs.
For greater flexibility Junger Audio has developed the so called Split Frame C8934. Such a Split Frame has
four independent clocking islands (clusters) with 32 audio busses available per island, while the CAN-bus
runs throughout the frame. Each cluster must be clocked by an I/O (SDI or MADI) or Sync-Module.
For high density of number of channels per frame Junger Audio provides the SDI-DSP modules C8486
C8491 and C8492 "sandwich" modules. It is a combination of a HD/SD-SDI front end with a LevelMagic™
processor. These modules fits into a special frame C8942 which delivers power and CAN communication to
the modules so they can be remote controlled via GUI, the brc8x, GPI/Os or the Junger API while they look
like stand alone to the TV channel.
The number of audio channels and the HD-SDI interface are field upgrade options per module.
This type of module also perfectly fits into an asynchronous environment because it does not need external
synchronization.
Fail save operation with two power supply C8903:
Two power supplies C8903 (or C8905) can operate in parallel and share their load. If one of the two power
supplies fails, the other one takes over the full load automatically. The brightness of the front panel LED lets
you judge the load status. If you turn the power off, this LED is unfortunately still illuminated a little bit for quite
a while.
If the “Power Fail” signal is used for monitoring purposes, it is extremely important to set the output
voltage for both power supplies within a tight range. Otherwise it may happen that one of the two power
supplies takes over full load and the power fail signal is activated, indicating a critical status.
Important Note! Do not align the brightness of both module LEDs without measuring the output voltage.
Therefore, you must put them into a test frame one by one or you must turn power off for the one you are not
about to align. You can obtain extender boards from Junger Audio to get access to the +5V rail for
measuring.

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modular
processing system
C8000
system configuration
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Remote Control of the frame:
Each frame must have a Frame Controller C8702. It has a built-in web server to setup and operate a frame.
This controller also provides connectivity for top level systems like SNMP managers or 3
rd
party applications.
You can get access to each frame via a web browser (Firefox45.x and higher) by simply typing its IP address
into the URL field:
From here you can observe the module status, activate graphical meter applets, set up the parameters of
each module, store and recall presets, back up and restore the settings of individual modules or the whole
frame. It is also the tool to update the firmware of the installed modules and the firmware of the
Frame Controller itself. The firmware of the Frame Controller is called image (an image of the flash memory
of the Frame Controller). It also contains the latest module firmware that was available at the time of the
image build.
For details see the C8702 Frame Controller manual and the module manuals as well.

digital audio
modular
processing system
C8000
warrenty and service information
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JÜNGER AUDIO GmbH grants a two-year warranty on the
digital audio modular processing system C8000
If the unit or parts of the system has to be serviced, please send it, ideally in the original box, to:
JÜNGER AUDIO - GmbH
Justus-von-Liebig-Strasse 7
D - 12489 Berlin
GERMANY
Tel.: [phone]
Fax.: [phone]
[email protected]
www.junger-audio.com

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