Studer I/O Solutions & Specifications
D21m Modular I/O System • Studer Compact Stagebox

System I/O

2

Stageboxes

StuderI/O Systems

Front

Back
Studer D21m I/O SystemStuder Compact Stagebox

The D21m I/O system provides very cost-effective inputs andoutputs with maximum flexibility while maintaining the well-known
Studer sound quality, available in full 96 kHz operation.

The Compact Stagebox adds a cost-effective expansion option,offering a high density of I/O connections in only 4U of rack space.
The modular unit is fully configurable but is offered with a standard
configuration of 32 mic/line inputs and 16 line outputs. It is possible
to equip the Compact Stagebox with an additional 16 mic/line input
module instead of the output module, then providing 48 inputs. In
this case, analogue or AES/EBU outputs can still be obtained on DType connectors via D21m cards fitted to the expansion slots.

Different I/O modules can be plugged into a frame, providing I/O
systems tailor-made to customer needs. And all this comes with anunequalled form factor. Full redundancy is available starting frompower supplies going up to redundant interconnections and DSP
cards.
When using the D21m I/O system the DSP core itself does notprovide I/O, but is connected to the first D21m frame within thesystem (acting as a hub) by using Studer proven ‘HD Link’technology. At the DSP core side, the connection is made directly to
the DSP card(s). From that frame it is possible to run optical-fiber
MADI links to multiple places, up to several kilometres away. A
maximum of six remote I/O boxes (stage boxes) may be connected
to one hub frame.
Should more I/O channels be required then multiples of the ‘local
frames’ (hubs) may be used within the system.
D21m Stageboxes
The D21m frames may also be housed in custom flightcases andused as portable remote stageboxes, with convenient
multiway cable links andbreak-out panels.

Redundancy
Redundancy issues are regarded as highly important, so it is possible
to run any MADI links with redundant cables. The system
automatically switches to the redundant connection in case theprimary connection fails. For 96 kHz operation the second link canbe used as a channel count extension, transferring a total of 64
MADI channels even at a 96 kHz sampling rate. The ‘redundant’
MADI link may also be used for sharing an I/O box between two
consoles.
The following pages give an overview of all optional cards for the
D21m slots, together with technical specifications and details on the
I/O on the Compact Stagebox and its specifications.
Full installation and user details may be found in the Studer D21m
Operating Instructions, available on the Studer website,www.studer.ch.

www.studer.ch3

D21m Modules
I/O
Format# of Console
Input Channels# of Console
Output Channels

Connector
Type

Width
(Slots)Order No.

Page

Mic/Line

4(4 Dir. Outs)

D25fsingleA949.0427

6

Line

4

4

D25f

singleA949.0428

6

Mic/Line

4(4 Dir. Outs)

D25fsingleA949.0447

6

Analogue Line In

Line

8

-

D25f

singleA949.0421

6

Analogue Line Out

Line

-

8

D25f

singleA949.0420

6

AES I/O M1 (no SRCs)

AES/EBU

8 stereo (16 mono)

8 stereo (16 mono)

2 x D25f

double **A949.0422

7

AES I/O M1 (Input SRCs)

AES/EBU

8 stereo (16 mono)

8 stereo (16 mono)

2 x D25f

double **A949.0423

7

AES I/O M1 (In/Out SRCs)

AES/EBU

8 stereo (16 mono)

8 stereo (16 mono)

2 × D25 f;
ext. sync XLR

double **A949.0424

7

Intercom BNC
Intercom Sub-D

AES
AES

4 stereo
4 stereo

4 stereo
4 stereo

4 × BNCD25 fsinglesingle5037475
5037474

9MADI I/O ***/****

MADI

64 at 48kHz(32 with red., 64
without red. at 96kHz)

64 at 48kHz(32 with red., 64
without red. at 96kHz)

SC (optical)
SC (optical)
2 × RJ45

double **A949.0430
A949.0431
A949.0433

7

ADAT I/O

ADAT

16 at 48kHz(8 at 96kHz)

16 at 48kHz(8 at 96kHz)TOSLINK(optical)singleA949.0425
A949.0429

7

TDIF I/O

TDIF

16 at 48kHz(8 at 96kHz)

16 at 48kHz(8 at 96kHz)

2 x D25f

double **A949.0426

7

3G/HD/SD SDI Input

3G/SD/HD

8/16-

2 × BNC

singleA949.0452

8

3G/HD/SD SDI I/O

3G/SD/HD

8/16

8/16

4 × BNC

singleA949.0451
A949.0457

8

Dolby® E/Digital Decoder

AES/EBU

8
16

2 stereo (4 mono)
4 stereo (8 mono)

D15 fsingleA949.0443
A949.0444

9

CobraNet® I/O

CobraNet32

32

2 × RJ45

singleA949.0445

9

Aviom A-Net® Output

A-Net

-

16

RJ45

singleA949.0446

9

EtherSound® I/O ***EtherSound

64

64

3 × RJ45

double **

-

9

48

48

32

32

2 x RJ45

single5014376

10

Name
Analogue I/O Cards*Mic/Line Input (incl. Dir. Outs)*Analogue Insert*HD Mic/Line Input with Input
Transformers (incl. Dir. Outs)

Digital I/O Cards

RockNetAxia Livewire

4

TM

double **10

BCD DTMF Dec./Glits Gen.

Internal

16

8-

single-10

BCD Blits/Glits Gen.

Internal-

8-

single-10

BCD Minimixer

Internal

16 (with GP inputs)
32 (without GPIO)

16
32

-

singlesingle-10

Stageboxes

I/O
Format# of Console
Input Channels# of Console
Output Channels

Connector
Type

Width
(Slots)Order No.

Page

GPIO w. Open-Collector Outp.

GPIO

16

16

2 × D25 f

double **A949.0435

10

GPIO w. Relay Outputs

GPIO

16

16

2 × D37 f

double **A949.0436

10

HD S

HD Linkmax. 192

max. 192

4 × RJ45

singleA949.0412

11

HD RS422

HD Link +RS422

max. 192

max. 192

4 × RJ45, D9 f

double **A949.0415

11

MADI HD

MADI

64 at 48kHz(32 with red., 64
without red. at 96kHz)

64 at 48kHz(32 with red., 64
without red. at 96kHz)

SC (optical)
SC (optical)
RJ45

A949.0411.3x
double ** A949.0413.3x
A949.0414.3x

11Serial

RS422

-

-

D9 f

singleA949.0437

12

Serial Merger

RS422

-

-

2 x D9 f

singleA949.0438

12

Serial RJ45

RS422

-

-

RJ45

singleA949.0439

12

Dual Merger RJ45

RS422

-

-

4 x RJ45

singleA949.0440

12

Name
GPIO Cards

HD Cards

Serial / Merger Cards

Compact Stagebox Modules
Name

I/O
Format# of Console
Input Channels# of Console
Output Channels

Connector
Type

Order No.

Page

HQ Mic/Line Input Module

Mic/Line

16

0

XLR

5032172

12

Line

0

16

XLR

5023745

12

AES/EBU

8 x 2Ch

8 x 2Chwith SRC

XLR

5019847

12

AES/EBU/Line

0

8 analogue
4 x 2Ch AES/EBU

XLR

A.947.043700

12Line Output Module
AES/EBU Input/Output Module
Line/AES Output Module

*
**
***
****

The Analog Insert card is fitted to the left of the Mic/Line Input card A949.0427. The insert send signal is always present and may be used as
an additional direct output. The insert return is activated from the console.
Please note that the Analog Insert card does not communicate with the HD card, and it is not supported by the HD Mic/Line Input card A949.0447.
Double-width cards must be inserted into odd slot numbers (e.g. slots 1, 3, 5…).
The number of channels transmitted to and from a card may be defined in steps of 8 channels by using DIP switches on the card.
Regardless of the number of channels defined with the DIP switches, a switch on the front panel switches the MADI protocol between thestandard 56-channel format and the extended 64-channel format. Therefore this switch may have to be set to ‘56 channel’ protocol in orderto operate correctly with third party MADI devices. In this case the number of channels set internally should not exceed 56.

www.studer.ch5Analogue I/O Cards
Analog Insert Card

Mic/Line In Card
A949.0427

A949.0428

Four analog microphone/line inputs, electronically balanced, with
24bit, 44.1/48/88.2/96kHz delta-sigma A/D converters. Fouranalog split outputs, electronically balanced. Mic/line sensitivity,
gain setting in 1dB steps, lowcut filter, soft clipping and 48 V
phantom power on/off are controlled by the console software.

This card is intended for use with a D21m Mic/Line In card
(A949.0427) and features four electronically balanced analog
inserts. The insert sends are always active, return on/off iscontrolled by the console software (default off). Insert sends
and returns on standard 25-pin D-type connector (female).

–60…+26dBu
Input sensitivity (for 0dBFS)
Input impedance
1.8kΩ
0dB
Split out gain (input sensitivity –60…+3dBu)(input sensitivity +4…+26dBu)–20dB
Split out impedance50Ω
–124dBu
Equivalent input noise (Ri 200Ω, max. gain)
Crosstalk (1 kHz)
< –110dB
Frequency response (30 Hz-20 kHz)
–0.2dB< –97dBFS(1kHz, –1dBFS)
THD&N(20Hz-20kHz, –30dBFS)< –111dBFS
CMRR(30Hz-20kHz, all gain settings)> 55dB(1kHz, input sensitivity –10 totyp. 100dB+26dBu for 0dBFS)
Low-cut filter
75Hz / 12dB/oct.
Input delay(local)38 samples (0.79ms @ 48kHz)
45 samples (0.94 ms @ 48kHz)(remote)
0.2A
Current consumption (7V)
0.25A(±15V)
Operating temperature
0-40°C

15dBu(6 or 24dBu w. soldering jumper)
Input impedance
10kΩ
50Ω
Output impedance
Current consumption (±15V)
0.05A
0-40°COperating temperature
In/out level (for 0dBFS)HD Mic/Line In Card
A949.0447
Four analog microphone/line inputs, transformer-balanced, with 24-bit, 44.1/48/88.2/96 kHz delta-sigma A/D converters. Four analog split outputs,
electronically balanced. Mic/line sensitivity, gain setting in 1 dB steps, hi-pass filter, soft clipping and 48 V phantom power on/off are controlled by the
console software. Inputs and split outputs on a standard 25-pin female D-type connector (female).
As opposed to the Mic/Line Input card A949.0427, the gain of the split outputs is always unity, i.e., 0 dB.This card does not support the Analog Insert Card
A949.0428.
Input sensitivity (for 0 dBFS)
Input impedanceSplit out gain
Split out impedance
Equivalent input noise (Ri 200 Ω, max. gain)
Crosstalk (1 kHz)Frequency response (30 Hz-20 kHz)
THD&N
(1 kHz, input level –6 dBu)
(40 Hz-20 kHz, input level –30 dBu)

–60…+26 dBu
2.2 kΩ
0 dB
100 Ω–124 dBu< –110 dB–0.2 dB< –88 dB
< –100 dB

CMRR (30 Hz-20 kHz, all gain settings)> 60 dB
High-pass filter
75 Hz, 12 dB/oct.
Input delay (local)
38 samples (0.79 ms @ 48 kHz)(remote)45 samples (0.94 ms @ 48 kHz)Current consumption (7 V)
0.2 A(±15 V)
0.25 A
Operating temperature
0-40 °C

Line In CardLine Out Card

A949.0421

A949.0420

Eight-channel line input card with 24-bit, 44.1/48/88.2/96kHz
A/D Converter, delta-sigma conversion. Transformer-balanced
inputs. 96kHz, 88.2kHz, 48 kHz, or 44.1 kHz operation. 7-26dBu
input sensitivity. ‘Signal present’ LED indicator. Inputs on standard
25-pin female D-type connector.

Eight-channel, 24 bit line output card with 24-bit D/A converters
with 96 kHz, 88.2 -kHz, 48 -kHz, or 44.1kHz operation.
Electronically balanced outputs. 7…26 -dBu max. output level.
Outputs on standard 25-pin female D-type connector.
Output level (for 0dBFS)

Input level (for 0 dBFS)

15/24 dBu (fixed, jumper-selectable),or 7-26 dBu (adjustable)
Input impedance> 10kΩ
Frequency response (20Hz-20kHz)–0.2dB
THD&N (35 Hz-20 kHz, –1 dBFS, 15dBu setting)< –97dBFS(1 kHz, –30dBFS, 15dBu setting)< –111dBFS
Crosstalk (1kHz)< –110dB
Input delay (local)
38 samples (0.79ms @ 48kHz)(remote)45 samples (0.94ms @ 48kHz)
Current consumption (7V)
0.42A(±15V)
0.1A
Operating temperature
0-40°C

6

Stageboxes

15/24dBu (fixed, jumper-selectable),or 7-2 dBu (adjustable)
Output impedance
40Ω
Min. load (at +24dBu)
600Ω
Frequency response (20Hz-2kHz)–0.2dB
THD&N (20Hz-20kHz, –1dBFS, jumper at 15dBu fixed)< –90dBFS(1kHz, –30 dBFS, jumper at 15dBu fixed)< –110dBFS
Crosstalk (1 kHz)
< –110dB
Output delay (local)
28 samples (0.58ms @ 48kHz)(remote)32 samples (0.67ms @ 48kHz)
Current consumption (7V)
0.23A
(± V)
0.25A
Operating temperature
0-40°C

Digital I/O Cards
AES/EBU M1 Cards
A949.0422, A949.0423, A949.0424
AES/EBU input/output card with 16 Ch I/O, available in 3 different
versions:
A949.0422xx
A949.0423xx
A949.0424xx

without SRCs (Sampling Rate Converters;
Vista only)with input SRCs onlywith input and output SRCs(see adjacent picture).

Input / output impedance
Input sensitivity
Output level (into 110Ω)
THD + noise
SRC range
Current consumption(3.3V) A949.0454: 0.43 A/.0455: 0.67 A/.0456:(5V)
Operating temperature110Ω
min. 0.2 V
4.0 V
max. –115dB
22-108kHz
0.94A
0.45A
0-40°C

Selectable output sampling rates: 96 kHz, 48 kHz, 44.1 kHz, or externalreference (22-108 kHz).

MADI I/O Cards
A949.0430, A949.0431, A949.0433
The MADI I/O cards can establish a 64-channel
MADI input and output to the D21m frame, with
44.1/48/88.2/96 kHz operation. Three different
versions are available:
A949.0430xx
A949.0431xx
A949.0433xx

A949.0430xx
A949.0431xx

A949.0433xx

Optical / multi-mode fibre
Optical / single-mode fibre
Cat5e twisted-pair (+additional word clock out).

Optical inputs and outputs are provided on SC
connectors. The Cat5e version with RJ45
connectors for twisted-pair cable features anadditional word clock output on a BNC socket.
The auxiliary interface can be used as a redundant
link or, in 96 kHz operation, to extend the numberof channels from 32 back to 64.

Max. cable length (A949.0430, multi-mode fibre, wavelength
1300nm*, ø either 62.5 or 50μm)
2km(A949.0431, single-mode fibre, wavelength
1300 nm*, ø 9 μm)
15km(A949.0433, CAT5e or better, flexible braid) 75m(A949.0433, CAT7, solid core)
120 m
Input frequencies
44.1/48/88.2/96kHz ±100ppm
Current consumption (3.3V)
0.4A
(5V)
0.4A
Operating temperature
0-40°C* different wavelengths on request

ADAT I/O Cards
A949.0425, A949.0429
These cards feature two optical eight-channel ADAT inputs and outputs
with 44.1/48/88.2/96 kHz operation. Two versions are available:
A949.0425xx
A949.0429xx

Standard version for all-plastic fibre (APF)
Long-distance version for plastic-clad fibre (PCF;
optional).

Optical inputs and outputs are provided on TosLink connectors available in
APF (980/1000 μm all-plastic fibre) and PCF (200/300 μm plastic-clad fibre)
versions. In 96 kHz operation, the number of channels is limited to eight, i.e.
four per I/O.

Maximum distance(A949.0425, APF version)
5m(A949.0429, PCF version)
300m(on request: up to 1000m)
Transmitter wavelength (A949.0425, APF version)
660nm(A949.0429, PCF version)
800nm
Transmitter aperture(A949.0425, APF version)
980/1000μm(A949.0429, PCF version)
200/300μm
Receiver wavelength(both versions)660 or 800nm
Receiver aperture(both versions)200/300μm*
Current consumption (3.3V)
0.1A
(5V)
0.2A
Operating temperature
0-40°C* use with 980/1000 μm AP fibre possible for distances up to 5m.

www.studer.ch7

Digital I/O Cards Cont.
TDIF I/O Card

3G SDI Input Card

A949.0426

A949.0452

This card provides two eight-channel TDIF I/Ointerfaces with 96 kHz, 88.2 kHz, 48 kHz, or 44.1
kHz operation with wordclock sync outputs on
BNC connectors. Inputs and outputs are provided
on standard 25-pin D-type female connectors.

The 3G/HD/SD SDI (serial digital interface) de-embeddercard is able to handle video signals according to the 3G (fullHD), HD and SD standards; both level A and B versions of 3G
signals are supported. The card acts as an eight- or 16-channel
embedder, i.e an eight- or 16-channel audio input card.

In 96/88.2 kHz operation, the number of channels is
limited to eight, i.e. four per I/O.

Operating modes 8- or 16-ch console input (de-embedder)
Selectable SDI groups
Groups 1&2, 3&4 or all
IN, THROUGH (BNC, 75Ω)Connectors
Cable length
max. 50m
Latency*(de-embedder) < 360μs + D (D = SRC delay if active; s. above)
Current consumption (5 V)
0.9A
0-40°COperating temperature

TDIF inputs/outputs according to TDIF specifications
5mA
Current consumption (3.3V)
(5V)
0.1A
Operating temperature
0-40°C* Audio latency times are identical for all channels and allgroups.

3G SDI I/O Card

Dolby® E/Digital
Decoder Card

A949.0457
The 3G/HD/SD SDI (serial digital interface) embedder/deembedder card is able to handle video signals according to the3G (full HD), HD and SD standards; both level A and B
versions of 3G signals are supported. The card can act as aneight- or 16-channel embedder (output), an eight- or 16channel (input), or any combination thereof. It can be an eightor 16-channel audio input card, an eight- or 16-channel audio
output card, or an eight- or 16-channel input/output card.
Available December 2013.
Operating modes
8- or 16-ch console output (embedder)
and/or 8- or 16-ch console input (de-embedder)
Selectable SDI groups
Groups 1&2, and/or 3&4
Connectors
IN, OUT A, OUT B, THROUGH (BNC, 75Ω)Cable length
max. 50m
max. 4 frames (3G); 8 frames (HD); 15 frames (SD)Video delay
Audio latency*(de-embedder + embedder)
3G/HD: <800μs; SD: <2.6ms
Current consumption (5 V)
1A
Operating temperature
0-40°C

A949.0443, A494.0444
The D21m Dolby® E/Digital decoder card is available in
2 versions:A949.0443xx
A949.0444xx

with one, orwith two Dolby® E decoder modules.

Each one is functionally similar to a Dolby® DP572 decoder.
Both operate independently; the information given below isvalid independently for both decoders as well.
Current consumption(3.3V)
0.2A(5 V) 0.8 A (A949.0443); 1.3 A (A949.0444)
Operating temperature
0-40°C* Latency times are identical for all channels and all groups.

CobraNet® Card

Aviom A-Net® Card

A949.0445

A949.0446

This card allows sending and receiving up to 32 audio channels
to/from a CobraNet®. DIP switches on the card allow setting
the number of input or output channels seen by the console.
Default setting is 32 output and no input channels.

This card allows implementing the head of an Aviom A-Net®
Pro-16 chain. With this standard, 16 mono signals can be fed to
an infinite number of Aviom personal mixers (such as the A-16
II) may be connected in a daisy chain configuration.

Current consumption (5V)
Operating temperatureThis card works at sampling rates of 44.1 or 48 kHz only.

800mA
0-40°C

Current consumption (5V)
Operating temperature

8

Stageboxes

250mA
0-40°CEtherSound®
Card

Intercom Cards
5037475, 5037474

Details: www.digigram.com
The EtherSound® card allows the connection of theD21m I/O System to an EtherSound® network. It
acts in a similar manner to a MADI card combinedwith a GPIO card. The number of audio channels
used can be configured with DIP switches. The
included, virtual GPIO card allows routing a GPO of
the mixing console to the GPO of a distant
EtherSound® device on the network.
Current consumption (5V)
Operating temperatureThis single-width I/O card is intended for intercom
applications via a Studer D21m system. It allows
embedding of the intercom audio and control
signals into the standard digital multi-channel link
(such as MADI) between Studer Vista or OnAir DSP
cores and a remote stagebox. See flyer 5034584.
Available December 2013.
No. of channels
4 stereo inputs and outputs
4 × BNC (option: 25-pin D-type)
Connectors
I/O Impedance75Ω (BNC) or 110Ω (D-type)
48kHz
Sample rate
C/U bits
Transparent

750mA max.
0-40°CBNC - 5037475
Sub-D - 5037474

Riedel RockNet®
Card

Axia Livewire™ Card
5014376

Details: www.riedel.com
The RN.343.VI enables a Studer Vista or OnAir
console to become a part of the RockNet digital audio
network and enables remote control of any RockNet
microphone pre-amplifier. It fits into a console’s SCore
Live or D21m card expansion slot and gives access to
64 input and 64 output channels. A wordclock input isfeatured via the backplane connector, while awordclock output is available at the front panel.

The Axia Livewire™ card is a single-slot unit accommodating
two Livewire SIM modules. Each Livewire SIM module can send
and receive up to eight stereo signals to and from the Livewire
network. This Livewire audio clock may be used as clockreference for a Studer OnAir or Vista console, or, If required,the mixing console can be the Livewire clock master.
Current consumption(24V) 7.2 / 6.25W (Audio Configuration /no Ethernet connection and AES In
not connected)(5V) 0W (on board generated from 24V)
(3.3V) 0.2W
Operating temperature
0-40 °CBCD DTMF / GLITS / BLITS / Minimixer Cards
Details: www.bcd-audio.co.uk
Three versions of this card are available, differing only by their firmware.
DTMF: This version is used to detect DTMF tone on up to 16 incoming lines and will generate 16 corresponding internal GPI signals when #1
is detected.
GLITS/BLITS: This version provides stereo and surround tone sequences according to EBU and UK standards. Tone generator level is adjustablebetween -24 and -9dBfs in one dB steps.
Minimixer: This version provides up to 32 small fixed mixes. These are useful for adding talkback, mono summing and similar.
Current consumption (5V)

0.5W

www.studer.ch

9

GPIO Cards
GPIO Card

GPIO Card with
Relay Outputs

A949.0435
For general-purpose input/output control signals, thiscard provides 16 electrically isolated opto-coupler
inputs (5-12 VDC) and 16 open-collector outputs.
5V DC supply pins are available. Inputs and outputs
on standard 25-pin female D-type connectors.
Current consumption (5V)
Operating temperature

max. 0.65A
0-40°C

A949.0436
For general-purpose applications requiring total
electrical isolation, this card provides 16 electricallyisolated opto-coupler inputs with integrated current
sink (5-24 VDC) and 16 electrically isolated outputs
using SPST relay contacts.
5V DC supply pins are available. Inputs and outputs
on standard 37-pin female D-type connectors.
Current consumption (5V)0.8A max.
(earlier version: 1.1 A max.)
0-40°COperating temperature
Output contact rating
0.5 A/125 VAC; 0.7 A/30 VDC; 0.3 A/100 VDC

HD Cards
HD Card S

HD RS422 Card

A949.0412

A949.0415

The D21m HD card S provides the link to the OnAir DSP
core systems. Each input and output can handle up to 96
channels in each supported sampling rate (in combination with
the Performa core, the number of I/O channels is restricted to48). The system clock used is taken from the host DSP system,
so no extra synchronization is needed.

The D21m HD RS422 card provides the link to theVista DSP core systems. Each input and output canhandle up to 96 channels in each supported sampling
rate (in combination with the Performa core, thenumber of I/O channels is restricted to 48). The
system clock used is taken from the host DSP system,
so no extra synchronization is needed.

Host link interface cable type
Cable length
Connector
Capacity of one CAT-5 connection
Current consumption (3.3V)(5.0V)
Operating temperature

CAT-5 UTP Cable
up to 10 m
RJ-45
96 channels
approx. 600mA<50mA
0-40°C

Host link interface cable type
Cable length
Connector
Capacity of one CAT-5 connection
Max. RS422 cable length
Current consumption (3.3V)(5.0V)
Operating temperature

CAT-5 UTP Cable
up to 10 m
RJ-45
96 channels
1000m
approx. 600mA<50mA
0-40°CMADI HD Cards
A949.04113x, A949.04133x, A949.04143x
The D21m MADI HD card is plugged into an HD card
slot in the remote I/O box and provides the link to the
hub frame. 3 versions are available:
A949.04113x
A949.04133x
A949.04143x

Optical / multi-mode fibre version
Optical / single-mode fibre version
Twisted-pair version.

The two interfaces offer up to 64 audio channels with
44.1/48/88.2/96 kHz operation, together with embedded
control and user-accessible serial connection in eachdirection.

A949.04113x
A949.04133x

10 Stageboxes

A949.04143x

Max. cable length (A949.0411, multi-mode fibre,
wavelength1300 nm*, ø 62.5 or 50μm) 2km(A949.0413, single-mode fibre,
wavelength 1300 nm*, ø 9μm)
15km
(A949.0414, CAT5e or better,
flexible braid)
75m(A949.0414, CAT7, solid core)
120m
Input sampling rates
44.1/48/88.2/96 kHz ±100ppm
Current consumption (3.3 V/5 V)
0.9 A/0.25A
Operating temperature
0-40°C* different wavelengths on request

Serial/Merger Cards
Serial Card

Serial Merger Card

A949.0437

A949.0438

It is possible to transmit any RS422 serial signals, such as MIDI
or Sony 9-pin (machine control) through a MADI connection
without losing any audio channels or microphone control of
the remote I/O box.

This card is used to feed any Studer-internal control signals into
the hub I/O frame. A serial connection is made between theStuder product (such as a Vista or OnAir 3000 console) andthe MASTER connector of the card.

Max. RS422 cable length
Current consumption (5V)
Operating temperature

Max. RS422 cable length
Current consumption (5 V)
Operating temperature

1000m
20mA
0-40°C

1000m
80mA
0-40°C

Serial RJ45 Card

Dual Merger Card

A949.0439

A949.0440

It is possible to transmit any RS422 serial signals, such as MIDI
or Sony 9-pin (machine control) through a MADI connection
without losing any audio channels or microphone control of
the remote I/O box.

This card is used to feed any Studer-internal control signals
into the hub I/O frame. A serial connection is made between
the Studer product (such as Vista or OnAir 3000 consoles)
and the HOST connector of the card. In certain SCore
applications the host port is connected internally through the
backplane. The non-host ports may be used to connect otherlocal I/O frames. OnAir 3000 desk modules connected to the
RJ45 connectors may be supplied by the card (24 V; 20 W
total per Dual Merger card), can be activated with a
DIP switch.

Max. UTP (CAT5) cable length
Current consumption (5V)
(5V, 24V supply loaded)
Operating temperature

25m
20mA
5A
0-40°C

Max. CAT5 cable length
Current consumption (5V)
(5 V, 24 V supply loaded)
Operating temperature

25m
160mA
5.16A
0-40°Cwww.studer.ch 11

Compact
Stagebox

The Compact Stagebox adds a cost effective expansion option,offering a high density of I/O connections in only 4U of rack space.
The modular unit is fully configurable but is offered with a standard
configuration of 2 x HQ mic/line input modules, line output
module, D21m MADI HD RJ45 card and blank panels for the
D21m slots.
The expansion slots for standard Studer D21m I/O cards may be
used for interfaces connecting to most popular digital formats,including CobraNet®, Axia LivewireTM, or Aviom A-Net® 16,
Ethersound, ADAT, TDIF, SDI (SD/HD/3G), Dolby® E and Dolby®
Digital. A MADI recording interface can be fitted to the expansion
slots as well. For more information, refer to the overview on page 5.
The Compact Stagebox is connected to the host console using
either Cat5/7 or Optical-fibre MADI, with redundant MADI
capability. The unit comes complete with twin redundant power
supplies, thermostatically-controlled fan cooling and full LED statusmonitoring. An 8-channel GPIO interface is also provided.

Available I/O modules (optional):• 16-channel HQ XLR Mic/Line In• 8x2 AES/EBU Input and 8x2 AES/EBU Output• 16-channel XLR Line Out• 8-channel XLR Line Out + 4x2- channel AES/EBU Out

Available D21m I/O expansion cards (optional):• 4-channel D-type Mic/Line In with 4 Direct Outputs• 8-channel D-type Line In• 8-channel D-type Line Out• *8-channel D-type AES/EBU In/Out• *MADI (RJ45 or optical SC), max. 64 channels of I/O• 16-channel ADAT In/Out (optical)• *16-channel TDIF In/Out (D-type)• 8 to 16-channel SDIF (SD/HD/3G) In or I/O on BNC sockets• 8 or 16-channel Dolby® E/Digital In on BNC sockets• CobraNet® 32-channel In/Out on RJ45 sockets• Axia LivewireTM 8 stereo signals In/Out on RJ45 sockets• Aviom A-Net® 16-channel Out on RJ45 sockets• *Ethersound® 64-channel In/Out on RJ45 sockets(* double-width cards)

12 Stageboxes

Technical Specifications Compact Stageboxes
HQ Mic / Line Input Module
General Conditions:
Input ImpedanceGain
Maximum Input Level
Frequency Response
THD + Noise
Equivalent Input Noise / Noise Figure (NF)
CrosstalkConditions / Details
Gain Setting 15 dBu 0 dBFS unless otherwise noted.
(electronically balanced)
for 0dBFS (adjustable in steps of 1dB)
–11dB gain, Rsource = 600Ω0dB gain, Rsource = 150Ω
20Hz to 20kHz, 40 dB gain
30Hz to 20kHz, 40 dB gain
1kHz, –1dBFS
1kHz, –9dBFS (nominal level)
20Hz to 20kHz, –30dBFS
Ri = 200Ω, gain > 60dB
1kHz (nominal level)

Input Delay
Common Mode Rejection Ratio (CMRR)
Line Output Module
Output ImpedanceFrequency Response
THD + Noise
Crosstalk
Output Level

30Hz to 20kHz, all gain settings
1kHz, –11dB to +26dB gain
Conditions / Details(electronically balanced)
20Hz to 20kHz–1 dBFS, 1kHz
–30 dBFS, 20Hz to 20kHz
1kHz
RL ≥ 600Ω; globally adjustable with hardware switches(steps: +24, +22, +20, +18, +15, +12, +9, +6 dBu)

Output Delay
AES / EBU Input / Output Module
Input/Output Impedance
Input Sensitivity
Ouptut Level
THD + NoiseSRC Range

Conditions / Details

Power Supply

Conditions / Details

Primary Input Voltage Range

Power supply auto-ranging, with power factor correction (PFC);
EN/UL approved

Power Consumption

Dependant on installed modules/cards

Ambient Conditions

Details

into 110Ω

Operating Temperature Range
Relative Humidity

3.6 kΩ
–11 to +75dB+26dBu+15dBu+0 / –0.9dB+0 / –0.6dB< –87dB< –94dB< –102dBFS–127.6dBu / NF ≤ 2< –100dB
12 samples
250μs @ 48kHz> 46dB
60dB typ.
Value
50Ω
+0dB / –0.3dB–90dB–103dB–115dB+6 to +24dBm
for 0dBFS
10.4 samples
217μs @ 48kHz
Value
110Ω
min. 0.2 VRMS
4.0 VRMS
max. –115dB
22-108kHz
Value
100 to 240 V AC ± 10%
50 to 60 Hz
max. 300W
Value–5 to 45°C / 23 to 113°F

non-condensing

Weights (approx.)
Studer Compact Stagebox,
recommended standard configuration

Value

95%
Value

2 × HQ mic/line input modules
1 × line output module
1 × D21m MADI HD card (optical or RJ45)
no D21m I/O cards (2 × blank panels only)

10 kg / 22 lbs

www.studer.ch 13

Dimensions
D21m

Compact Stagebox

14 Stageboxes

www.studer.ch 15

Studer Professional Audio GmbH,
Riedthofstrasse 214,
CH-8105 Regensdorf,
Switzerland.
Phone: +41 44 870 75 11
Fax: +41 44 870 71 34
Studer reserves the right to improve or otherwise
alter any information supplied in this document or
any documentation supplied hereafter. E&OE 09/13.
All trademarks are recognised as the property of
their respective owners.
Part No: 5037435
Issue: 09/13

www.studer.ch