junger b40 User manual

DIGITAL
AUDIO
TOOLBOX
model b40
operations manual
rev. 3.1
Justus-von-Liebig-Straße 7, 12489 Berlin, Germany
Telefon: [phone] - 0 Fax: [phone] – 46
www.junger-audio.com

The information contained in this manual is subject to change without notice.
This manual is the copyright of Jünger Audio. All reproduction and copying, other than for legal owner’s
personal use, or disclosure of part or whole to a third party, is not allowed without prior written
authorization by Jünger Audio. © Jünger Audio, Berlin 1998
FOREWORD
Thank you for buying and for using the 4-channel Digital Audio
Toolbox b40.
Not only you have aquired the latest generation of digital
dynamic range processing, but also a piece of equipment which
is unique in its design and specification.
0
Please read this manual carefully to ensure you have all the
information you need to use the 4-channel Digital Audio Toolbox
b40.
The unit was manufactured to the highest industrial standards
and went through extensive quality control checks before it was
supplied.
If you have any comments or questions about installing, setting-
up or using the b40, please do not hesitate to contact us.

CONTENTS
1
2. Location of parts and controls ............................................. 2-1
2-1
2-3
2-4
2-5
2-5
2.1 Front panel .....................................................................
2.2 Rear panel .....................................................................
2.3 Switches and jumpers for configuration ..........................
2.4 Selection of SDI Split Mode ............................................
2.5 Selection of SDI audio group ...........................................
3. Installation ........................................................................... 3-1
3-1
3-1
3-1
3-1
3-1
3-2
3-3
3-3
3-4
3-5
3-6
3.1 Unpack the unit .............................................................
3.2 Power supply ..................................................................
3.3 Connections ...................................................................
3.4 Rack mounting ...............................................................
3.5 Operation safety .............................................................
3.6 Synchronization of digital output .....................................
3.7 Remote Control ..............................................................
3.7.1. GPI Remote Control .............................................
3.7.2. Tally Out ...............................................................
3.7.3. Serial Remote Control ..........................................
3.8 Block diagram .................................................................
4-1
4-1
4-2
4-2
4-3
4-3
4-3
4-3
4-4
4-4
4. Operation .............................................................................
4.1 Mode .............................................................................
4.2 Recalling and storing of presets .....................................
4.3 Mono switching ................................................................
4.4 Ø-Reverse ......................................................................
4.5 Input gain ........................................................................
4.6 Matrix ...............................................................................
4.7 Output gain .....................................................................
4.8 Monitor .............................................................................
4.9 Bypass .............................................................................

5-1
5-1
5-1
5-2
5. Boot display and trouble shooting ............................................
5.1 Boot display .......................................................................
5.2 Error messages and trouble shooting ................................
5.3 Initialization the unit ............................................................
6-1
6-1
6-1
6-3
7-1
8-1
6. Application notes ......................................................................
6.1 B40 series with SDI interface .............................................
6.2 Basic working modes with SDI ...........................................
6.3 Remote control with brc4x ..................................................
7. Technical specifications ...........................................................
8. Warranty and service information ...........................................

2. LOCATION OF PARTS AND CONTROLS
Operation manual b40, chapter 2 -control elements and displays- page 2-1
LOCATION OF PARTS AND
CONTROLS
All control elements gives direct access.
In menu modes the alphanumeric display above the related
button or rotary knob is showing the specific function.
fig. 1: front panel b40
INPUT selection of digital input
SYNC selection of sync input
PRESET 1...4 storage and recall of presets 1...4
Ø-REV 180° phase reverse for ch1/2 or 3/4
MONO mono switching of ch1/2 or ch3/4
CH 1...4 selection (push) and adjustment (turn)
of input gain (GAIN)
2.1.
FRONT PANEL
2
Output level
display
Preset buttons Input level
display
CONTROL
ELEMENTS
mode
input 1/2
input 3/4
input gain
Output level
meter selection
Output
gain
Mains
switch
Input/sync
selection
Ø-Rev, Mono switching
Input gain
Mix-Matrix

2. LOCATION OF PARTS AND CONTROLS
Operation manual b40, chapter 2 -control elements and displays- page 2-2
INPUT 1...4 selection of input channel matrix
and then
OUTPUT 1...4 selection of output channel
to set or reset connecting points of the matrix
output gain
CH 1...4 selection (push) and adjustment (turn)
of output gain
monitor
OUTPUT selection of output level display
BYPASS switches bypass on and off

2. LOCATION OF PARTS AND CONTROLS
2.2.
REAR PANEL
DIGITAL
OUTPUTS
DIGITAL
INPUTS
SYNC IN
BASIC
SETTINGS
SDI IN-/
OUTPUT
SERIAL
REMOTE
IN/OUT
GPI REMOTE
IN/OUT
fig. 2: rear panel b40
POWER INPUT
IEC mains input connector 230 V, 50 Hz (UK: 240 V, 50 Hz; JAPAN: 100 V,
60Hz; USA: 127 V, 60 Hz) with integrated fuse
REMOTE
serial remote interfacee RS-422
connector: 9pin SUB-D, input - male, output - female
GPI
paralle remote interface
TALLY-out TTL-level
connector: 9pin SUB-D, male
GPI-in TTL-level
connector: 9pin SUB-D, female
SYNC
AES/EBU input for ext. sync signal (AES 3 format, 75 Ohm, unbal)
connector: BNC socket
VIDEO input for video sync signal (blackburst, 75 Ohm, unbal)
connector: BNC socket
SDI IN / OUT (only for SDI-Version!)
Input/output for serial digital video (ITU-R BT.601, SMPTE 272M-A)
Format: • Video: 270 Mb/s, 525/625 line rate, 75 Ohm,
BNC socket
DIGITAL IN
input for AES/EBU standard format
connector: XLR female panel jack
1- ground, 2-3 signal, balanced
connector: BNC socket 75 Ohm, unbalanced
DIGITAL OUT
output for AES/EBU standard format
connector: XLR male panel jack
1- ground, 2-3 signal, balanced , 4 Vpp
connector: BNC socket 75 Ohm, unbalanced, 0.5V pp
hardware bypass: relais are connecting related inputs and outputs if power
is failed
Operation manual b40, chapter 2 -control elements and displays- page 2-3

2. LOCATION OF PARTS AND CONTROLS
Some basic settings are to select by switches on the rear panel
or by switches and jumpers at the internal circuit boards of the
unit. These settings can occur general changes for operation
and should made by qualified engineering staff only.
Rear panel
Following switches in the REMOTE- field at rear panel are used
for configuration of the unit.
SDI Bypass switches SDI bypass on/off (see also 3.10)
(only for SDI version!)
LOCAL Setting of FRONT PANEL operation mode
ENABLE Unit can be controlled by front panel and by
serial remote interface.
DISABLE Unit can be controlled only by using serial remote
interface. Front panel is locked.
Note: DISABLE is only activated if serial remote
control is connected!
ADDR
Selection of the device address for serial
remote, 16 device addresses selectable
Note: Within a line of remote controlled units every
device needs a different address! The selected
2.3
SWITCHES AND
JUMPERS FOR
CONFIGURATION
address is valid after next power-on reset of the unit.
Internal
To set any internal jumper or switches it is necessary to open
the unit.
PLEASE DO NOT MAKE ANY ALTERATIONS WITH THE
MAINS STILL CONNECTED TO THE UNIT!
Loosen the screws on the top cover and remove. Then you can
see all jumper and switches as shown in the drawing below.
After setting of jumper or switches reassemble the unit in
opposite order.
Operation manual b40, chapter 2 -control elements and displays- page 2-4

2. LOCATION OF PARTS AND CONTROLS
Main
board
SDI
Interface
J1
SDI Split
SW1&2- SDI group
selection and others
B4x
Download
switch
Units with SDI interface can be used in SDI split mode:
Audio in path SDI input > AES output
Audio out path AES input > dsp processing > SDI output
(see also 3.9)
dsp
processing
AES
out
SDI
out
SDI
in
B4x
Split Mode
AES
in
External device
AES
in
AES
out
The selection of split mode (SDI DIRECT) is made by setting
jumper J1 on main board of the unit.
The 4-channel processors of b40 series fitted with SDI-interface
are compatibel with the standard SMPTE 272M-AB. They
support 48 kHz synchronous audio sampling with 20 bit word
length.
2.4
SELECTION OF
SDI SPLIT MODE
2.5
CONFIGURATION
OF SDI INTERFACE
The standard allows up to four groups each of four mono audio channels.
(Usually used by most of D-VTR's and other equipment is Group 1 with 48
kHz synchronous sampling.)
Group selection and other settings are to configure with
switches on the SDI board as described following:
Operation manual b40, chapter 2 -control elements and displays- page 2-5

2. LOCATION OF PARTS AND CONTROLS
Settings on SDI interface board:
Group selection for receiver: valid anytime
TRANSMITTERRECEIVER
TX-GR0
TX-GR1
CASCADE
PACK
TEST
RX-GR0
RX-GR1
SWAP0
SWAP1
EXCHNG
SDI-
Interface
for transmitter: valid only in PACK or in CASCADE
mode
GR0 GR1
group 1 - -
group 2 x -
group 3 - x
group 4 x x
x – switch is set to ON
Channel swap for receiver:
SWAP0 swaps channel 1&2
SWAP1 swaps channel 3&4
EXCHNG swaps pairs 1/2&3/4
PACK
- generates a new audio frame structure (is deleting all former existing
embedded audio!)
- is embedding selected TX group as first audio group within SDI stream
- necessary if no audio was embedded before
CASCADE
- generates a new audio group as selected (TX group) within existing
frame structure (is overwriting all data of this group if it was already
existing)
- necessary if a new group should be embedded and if audio in other
groups was embedded previously
- is matching ideally the structure which was generated by PACK mode
(It is recommended to use PACK mode for generating audio
structure and embedding the first group before using CASCADE to
embedd further audio groups!)
Please note: As long as PACK and CASCADE are not set the embedder is
inserting in the group which is determined by RX group selection. The
embedder is replacing the existing audio if it was embedded previously.
If group 1 is selected and no audio structure is existing at the input the
embedder is switching to PACK mode for group 1automatically!
If group 2,3 or 4 is selected and no audio structure is existing for this group
the embedder is not inserting audio data (use PACK or CASCADE!).
Test not in use
Operation manual b40, chapter 2 -control elements and displays- page 2-6