junger b40 Operation 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, setting­up 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

SDI­Interface

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

3. INSTALLATION

Operation manual b40, chapter 3 -installation- page 3-1

INSTALLATION

3.1

UNPACK THE UNIT

3.2

POWER SUPPLY

3

The digital audio toolbox b40 was carefully packed in the factory
and the packaging was designed to protect the equipment from
rough handling. Please examine carefully the packaging and its
contents for any signs of physical damage, which may have
occured in transit.

The digital audio toolbox b40 is a device under the safety
category Schutzklasse 1 in keeping with the VDE 0804
standards and may only used with power supply installations
built according to regulations.
Check the voltage details printed at the rear panel are the same
as your local mains electricity supply.

The digital audio toolbox b40 is equipped with standard
connectors (see also chapter 3).
Before connecting the digital audio toolbox b40 switch the power
off at all connected units.

The digital audio toolbox b40 is made as standard 19“ unit (EIA
format). It occupies 1 RU (44 mm height) space in a rack.
Please allow at least addititonal 3“ depth for the connectors on
the rear panel.
When installing the unit in a 19“ rack the rear side of the unit
needs some support, especially for mounting in flight cases.

The digital audio toolbox b40 should not be installed near units
which produce strong magnetic fields or extreme heat. Do not
install the filter processor directly above or below power
amplifiers.
If, during operation, the sound is interrupted or displays no longer
illuminate, or if abnormal odor or smoke is detected immediately
disconnect the power cord plug and contact your dealer or
Jünger Audio.

3.3

CONNECTIONS

3.4

RACK MOUNTING

3.5

OPERATION
SAFETY

3. INSTALLATION

Operation manual b40, chapter 3 -installation- page 3-2

3.6

SYNCHRONIZATION
OF
DIGITAL OUTPUT

The digital audio toolbox b40 has a digital signal output only. To
the problem-free combination of following digital devices, the
digital signal processing can be locked to an external clock
reference. The selection of the corresponding input is made with
the SYNC button in MODE field. If the chosen sync input is
connected with the sync signal, this signal is used for
synchronization automatically. The digital output signal can be
clocked with the following clock frequencies:

CH 1/2 locks with the clock frequency of the input signal at
digital input CH 1/2 (AES/EBU)
EXT SYNC locks with the clock frequency at the
external sync input (AES/EBU)
VIDEO locks with the clock at the Video sync input
(internal 48 kHz)
SDI VIDEO locks with the clock at the SDI input
(internal 48 kHz)

Both digital outputs CH 1/2 and CH 3/4 are locked with same
clock frequency.
Pushing the SYNC button switches sync input. Selected sync
input is marked by lighting LED. Note: SDI sync is available only
if SDI input is active! If SDI sync is selected only

SDI input LED

lits. All LED’s in sync display are switched off!

3. INSTALLATION

3.7

REMOTE
CONTROL

3.7.1

GPI REMOTE
CONTROL
(PARALLEL
REMOTE)

The digital audio toolbox b40 can be remote-controlled by
means of parallel GPI contacts.

use

: remote-controlled changeover of presets

connector: D-SUB 9pin, female

Pin assignments

5 1

9 6

Pin Signal name Logic I/O Functions
1 PRESET1 L I call preset1
2 PRESET2 L I call preset2
3 PRESET3 L I call preset3
4 PRESET4 L I call preset4
5 FACTORY-

PRESET

L I call factory-preset,

not alterable

6 BYPASS L I bypass, for the time of

low level
7 not used
8 not used
9 GROUND Ground

Electrical specification:

GPI input On: connection to ground
Off: open

signal input level L: 1,5V or less, min. 50ms
level H: 3,5V or more

min. 50 ms

+1,5V

+3,5V

Operation manual b40, chapter 3 -installation- page 3-3

3. INSTALLATION

3.7.2

TALLY OUT

The digital audio toolbox b40 can signal specific device statuses
via parallel Tally lines.

use

: Control of the remote-controlled changeover of

presets

connector: D-SUB 9pin, male

Pin assignments

5 1

9 6

Pin Signal name Logic I/O Functions
1 PRESET1 H O preset1 recalled
2 PRESET2 H O preset2 recalled
3 PRESET3 H O preset3 recalled
4 PRESET4 H O preset4 recalled
5 OVERLOAD H O overlevel at digital output

ch1...4
6 BYPASS H O bypass on
7 not used
8 NO SYNC H O no or invalid sync signal
9 GND Ground

Electrical specification:

signal input level L: 1,5V or less
level H: 3,5V or more

TALLY OUT
max. 25 mA

+5 V

110 Ohm

Operation manual b40, chapter 3 -installation- page 3-4

3. INSTALLATION

3.7.3

SERIAL REMOTE
CONTROL
(RS-422)

The digital audio toolbox b40 can be remote-controlled by
means of serial remote RS-422.

use

: remote-controlled changeover of presets

protocol: available on request

connector: D-SUB 9pin, input - male
output - female
Pin assignments

The cable is wired 1:1 completely, the shield of the cable must be connected
on both ends!

5 1

9 6

REMOTE IN

Pin Signal name Functions
1 DSR + out Data set ready
2 DSR - out
3 SENSE in Interrogation Remote
4 RXD + out Receive data
5 RXD - out
6 DTR + in Data terminal ready
7 DTR - in
8 TXD + in Transmit data
9 TXD - in

REMOTE OUT

Pin Signal name Functions
1 DSR + in Data set ready
2 DSR - in
3 GND GND
4 RXD + in Receive data
5 RXD - in
6 DTR + out Data terminal ready
7 DTR - out
8 TXD + out Transmit data
9 TXD - out

Electrical specification:

signal in-/outputs TTL-level

Operation manual b40, chapter 3 -installation- page 3-5

3. INSTALLATION

3.8

BLOCK DIAGRAM

Operation manual b40, chapter 3 -installation- page 3-6

4. OPERATION

operation manual b40, chapter 4 -Operation- page 4-1

OPERATION

4.0

DESCRIPTION OF
OPERATIONS

4

The use of the digital audio toolbox b40 is very easy.

The setup or the programming of the digital audio toolbox b40
is made by adjustment of various parameters and settings.

The description is made related to the functional blocks on the
front panel.

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

mode
recalling and storing of presets
mono
Ø-rev
input gain
matrix
output gain
monitor
bypass

Following syntax is used:

SYMBOL ACTIVITY

describes
how to use
button or
rotary knob

turn

p

ush + turn

p

ush

describes
action or function of
button or
rotary knob

4. OPERATION

Selection of digital signal input

INPUT selection of digital signal input
(SDI is for SDI-version available only!)

Selection of sync signal input

SYNC selection of sync-signal input

1/2 unit is synchronized with AES input
channel 1/2 (AES 48kHz)
EXT unit is synchronized with AES input
signal at external sync input
VIDEO unit is locked to video signal at video
input (with 48kHz)
SDI unit is locked to SDI signal at SDI

input (with 48kHz)

Note: SDI sync is available only if SDI input is active! If SDI sync is selected
only

the SDI input LED lits. All LED’s in sync display are switched off!

All adjusted parameters of Ø-REV, MONO, INPUT GAIN,
MATRIX and OUTPUT GAIN can be stored into presets.

Recall of presets

preset buttons

1...4 recall of preset 1...4

Storage of presets

preset buttons

1...4 after appr. 3 sec. of pushing continously a
preset button all current adjustments will be
stored into this preset, yellow LED blinks
two times.

Note: All former stored preset values are overwritten at the
moment of new storage into this preset! Just as after
initialization of the unit all presets are overwritten with factory
setups.

The MONO function is adding together both input channels 1/2 or
3/4 and distributes the mix signal to both channels. There is no
level reduction or correction included!

4.1

MODE

push

push

4.2

RECALLING AND
STORING OF
PRESETS

push

push
+hold

4.3

MONO

operation manual b40, chapter 4 -Operation- page 4-2

4. OPERATION

The Ø-REV function turns the phase of the input signals around
180°. Repeated pushing the REV button switches the following
modes:
Ø-REV CH 1 (or CH3)
Ø-REV CH 2 (or CH4)
Ø-REV CH 1+2 (or CH3+4)
Red LED’s gives information about Ø-REV status.
Adjustments for MONO and Ø-REV will be stored into the
presets.

INPUT GAIN means linear amplification of input signals. The
input gain can be changed in steps of 0.1 dB , within a range
from -15...+15 dB.
Adjustment of GAIN is channel independent. GAIN adjustment is
stored into the presets.

GAIN

selection of channel

GAIN

adjustment of gain for selected channel

The matrix is to configure with the INPUT buttons and the
OUTPUT buttons.

1. selection of input channel by pushing related INPUT button

2. selection of requested output channel by pushing related

OUTPUT button.
This procedure is to repeat up to all necessary connection are
routed.
The configuration of the matrix is stored into the presets.

After mixing together several input channels output level will be
increased. If excessive level at the output occurs one has to
reduce output level by reducing the OUTPUT GAIN (see also

4.8 Monitor). The output gain can be changed in steps of 0.1 dB
, within a range from -15...+15 dB.
Adjustment of GAIN is channel independent. OUTPUT GAIN
adjustment is stored into the presets.

4.4

Ø-REV

4.5

INPUT GAIN

push

turn

4.6

MATRIX

4.7

OUTPUT GAIN

GAIN

selection of channel

GAIN

adjustment of gain for selected channel

push

turn

operation manual b40, chapter 4 -Operation- page 4-3

4. OPERATION

operation manual b40, chapter 4 -Operation- page 4-4

OUTPUT buttons 1/2 or 3/4 are switching the related output
signal to the meter display in this section.
The meter display does not allow a precise adjustment, but it
does give an indication of the existence and the level of digital
output signals.
If excessive level at the output occurs (if digital audio samples
at the maximum permissable positive or negative sample value
occur at the digital output) then the red clip-LED at the
extreme right-hand end of the level meter lights up and indicates
overloads which are present in the output signal.

4.8

MONITOR

p

ush

1/2 or 3/4 selection of output meter signal

4.9

BYPASS

BYPASS is bypassing the signal processing of the unit.
BYPASS is working for all configurations.

p

ush

BYPASS switching bypass on or off

display: red LED is lighting

5. BOOT DISPLAY AND TROUBLE SHOOTING

Operation manual b40, chapter 5 -Boot display and trouble shooting- page 5-1

BOOT DISPLAY AND

5.1

BOOT DISPLAY

5

T ROUBLE SHOOTING

display meaning / explanation

TOOLBOX display of processor model

B40 display of type

ADR. x display of unit address for serial remote control

5.2

ERROR
MESSAGES AND
TROUBLE
SHOOTING

display error / message remedies

NO SYNC no sync at sync input! ! connect the sync input

(selectable in SYNC field) with
valid input signal

# CH 1/2: sync on DIGITAL IN

CH 1/2

# EXT: sync on SYNC

AES/EBU

# VIDEO: sync on SYNC

VIDEO

# SDI: sync on SDI input

NO SDI! SDI input selected, no

valid SDI signal
received!

! check the availability of SDI

data stream
or
! select another input

OPEN REM Front panel locked and

no remote connected!

! set switch LOCAL to ENABLE
or
! connect unit with remote

panel or serial remote

5. BOOT DISPLAY AND TROUBLE SHOOTING

Should have remained the device no more operable and/or in the
program execution stand, recommends itself an initialization the
device.
During initialization, all storage areas important for the program
and registers are loaded with the factory setup and the program
is restarted.

Any button is to be held pressed in order to initialize the device
during switch-on of the device until the program started. To the
start of the program and at the completion of the displays (how
described in 5.1), the device is ready for operation with the
factory setup.

After an initialization of the device, all user presets and
adjustments are erased and/or overwritten by the factory
setup!

5.3

INITIALIZATION
THE UNIT

Operation manual b40, chapter 5 -Boot display and trouble shooting- page 5-2

6. APPLICATION NOTES

operation manual b40, chapter 6-Application notes- page 6-1

APPLICATION NOTES

6.1

B40 SERIES WITH
SDI-INTERFACE

6

In digital video recording technology four digital audio channels
are the standard configuration. This channel capacity is used
increasingly in production and post-production for surround
sound, providing mix options and for multi-lingual productions.

Quite often it is necessary to make corrections or changes to the
audio which until now required the use of an expensive digital
audio mixer. These tasks can now be easily solved with the
Jünger Audio range of digital audio toolboxes. Simple
processing for up to four digital audio signals may be carried out
quickly and efficiently.

Using the SDI versions (SDI=Serial Digital Interface, digital
component video format with 270Mb/s transmission) b40 series
can process embedded audio.
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. Synchronous
means that the audio clock is genlocked to the associated video.
Each channel can have up to 20 bits of resolution per audio
sample.
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.

The Jünger Audio SDI interface provides for one group of four
audio channels to be extracted from or inserted into the SDI data
stream. To address a specific channel group the group selection
is possible (see 2.5).

For the basic working mode the input of the digital audio
processing can be selected between AES/EBU or SDI (serial
digital video with embedded audio). The processed signals are
present at both outputs always - at AES/EBU and SDI.
There are two additionaly working modes using the SDI interface.
SDI Bypass is bypassing the SDI data stream. In this case only
extracted audio is processed and available at AES output. In Split
Mode the audio path is splitted. Embedded audio can be
processed with external equipment via AES interface.

6.2

BASIC WORKING
MODES WITH SDI

Following illustration shows working modes:

6. APPLICATION NOTES

operation manual b40, chapter 6-Application notes- page 6-2

6. APPLICATION NOTES

The Digital Audio Toolbox b40 can be used remote controlled by
the programmable remote control panel brc4x.

All settings of the b40 toolbox can be made on the front panel of
the box or via the edit menus of brc4x remote control.
Working with the brc4x remote control panel means rapid
changes of preprogrammed presets by pushing one button only.

features of brc4x:

- universal remote control panel (RS-422)

- remote operation of several units (up to 16 devices,
various models of b40series together are possible)

- "self detecting" remote system
remote panel is detecting connected units

- remote control panel brc4x as programmable
control unit with "one touch" access of presets
by hot keys

- 19" case, 1RU, only 75 mm depth!

6.3

REMOTE CONTROL
WITH BRC4x

Fig . 6.2: installation with remote control brc4x

Fig . 6.1: programmable remote control brc4x

operation manual b40, chapter 6-Application notes- page 6-3

7. TECHNICAL SPECIFICATIONS

operation manual b40, chapter 7-Technical specifications- page 7-1

TECHNICAL
SPECIFICATIONS

7

sample rate : 48 kHz
audio data format : 24 bit (AES/EBU), 20 bit (SDI)

DIGITAL IN/OUT

AES/EBU

connector : XLR,110 Ohm, balanced
BNC, 75 Ohm, coaxial
input format : AES professional, AES consumer
output format : same as input format

SDI (only for SDI version)

connector : BNC, 75 Ohm, coaxial
data rate : 270 Mb/s, 525/625 Line rate
format : serial digital component video 4:2:2
with embedded audio
(ITU-R BT.601, SMPTE 272M-A)
level: 800 mV +/- 10%
equalisation : appr. 180 m (Belden 8281)
audio data: 4 channels, 20 bit
features : SDI relais bypass

independent group selection for

de-embedder and embedder

SYNC IN

AES/EBU
connector : BNC, 75 Ohm, coaxial
level : 0,5 ... 5 Vpp
input format : AES professional, AES consumer
VIDEO
connector : BNC, 75 Ohm, coaxial
level : 0...1 Vpp
input format : Blackburst or PAL/NTSC composite video

digital signal
processing

digital
in- / outputs

sync
in- / outputs

7. TECHNICAL SPECIFICATIONS

REMOTE

serial remote interface RS-422 in/out
level : TTL
connector : 9 pin SUB-D male/female
GPI parallel remote
level : TTL
connector : 9 pin SUB-D female
Tally Out
level : TTL, max 25mA
connector : 9 pin SUB-D male

GENERAL

power consumption : appr. 15 VA
dimensions : 19“, 1 RU, 250 mm depth
weight : appr. 5 kg
optional : programmable remote control brc4x SDI

remote control

operation manual b40, chapter 7-Technical specifications- page 7-2

8. WARRANTY AND SERVICE INFORMATION

operation manual b40, chapter 8 -Warranty and service information- page 8-1

WARRANTY AND SERVICE
INFORMATION

8

JÜNGER AUDIO grants a two-year warranty on the

4-channel digital audio toolbox b40

If the unit has to be serviced, please send it, ideally in the
original box, to:

JÜNGER AUDIO - Studiotechnik GmbH

Justus-von-Liebig-Str. 7

D - 12489 Berlin

GERMANY

Tel.: (*49) -30-677721-0

Fax.: (*49) -30-677721-46