Appsys ProAudio multiverter SRC-64 User manual

SRC-64
Sample Rate Converter
Add-on Module for MVR-mkII / MVR-64
User's Manual
multiverter

User's Manual
Table of Contents
1. ENERAL............................................................................................................. 3
1.1. Features........................................................................................................ 3
1.2. Box Contents................................................................................................. 4
1.3. Conventions used in this manual.......................................................................4
2. INSTALLATION..................................................................................................... 5
2.1. Hardware Installation......................................................................................5
3. CONFI URATION.................................................................................................7
3.1. Methods........................................................................................................ 7
3.2. Configuration steps......................................................................................... 8
3.3. SRC capacity...............................................................................................13
4. MAINTENANCE..................................................................................................14
4.1. SRC selftest................................................................................................. 14
4.2. Determining SRC Firmware/Hardware version...................................................14
4.3. SRC Firmware Upgrade.................................................................................15
5. SPECIFICATIONS................................................................................................16
6. APPENDIX.......................................................................................................... 17
6.1. Warranty..................................................................................................... 17
6.2. Manufacturer contact....................................................................................17
6.3. Recycling..................................................................................................... 17
6.4. Document Revision History............................................................................17
6.5. About this document..................................................................................... 17
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SRC-64
1. GENERAL
1.1. Features
The SRC-64 add-on module adds the capability of asynchronous sample rate
conversion to your multiverter. Designed as internal add-on module, it leaves the
"Extension" port available to other break-out boxes.
(Note: The module is called "SRC" in this manual for clarity).
It features highest analog performance (THD+N -134dB typ.), bi-directional
conversion for total up to 128 channels (e.g. 64x64 bi-directional) between any
interfaces supported by the multiverter.
With the SRC installed, the multiverter accepts signals from two different clock
domains (A and B). Each input and/or output can be assigned to run either on clock
A or clock B. When routings are established between inputs and outputs on
different clocks, the signals are automatically routed through the SRC to match the
sample rate of the target.
Existing multiverter routing capabilities are fully preserved, SRC appears in the
background and is fully transparent to the user.
Special presets allow the use of two MADI or AES50 ports together, to send and
receive all 64 channels at 96 kHz (48ch for AES50) and to convert to 48kHz
(and vice versa).
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User's Manual
1.2. Box Contents
1 SRC-64 Module
2 Screws M3x6
2 Hex standoffs M3x11mm (use with older MVR-64 model)
This manual
1.3. Conventions used in this anual
A button on the front of the device is shown like this: Set
The encoder can be pushed. This is shown as OK
A particular LED on the front of the device is shown like this: ☼ WCLK
Text indicated on the seven-segment display is shown as 02
Operations in a particular control method are indicated by a diamond:
Front panel, ◆ Web ◆or Co and line ◆
A section marked with a warning sign mark tells you that the
information is particularly important to avoid damage or
malfunction.
Filled circles with an exclamation mark indicates an action
that must be performed (“Required”)
A section marked with a prohibited sign tells you that the
action indicated is prohibited (“Prohibited”)
A section marked with a “information” icon indicates a useful
tip. ("Information").
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SRC-64
2. INSTALLATION
2.1. Hardware Installation
CAUTION: To prevent electric shock, re ove all ains power
plugs fro the ultiverter before opening!
ATTENTION: Static Sensitive Devices
Observe Precautions for Handling!
Remove the two screws at the rear of the multiverter's top cover
(Torx T10):
 Flip the multiverter to detach the top cover. Disconnect the cover's ground
connection at the base.
Note: Due to tolerances, the lid does sometimes not open easily. In this case,
loosen the back panel screws (the four black ones on the back panel edges) a
few turns. Don't forget to fasten them again after installation
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User's Manual
Locate the two hex studs .
MVR-64 only: Remove the indicated two screws from the multiverter's main
board, replace them by the supplied hex studs.
Carefully plug the SRC into the main board.
Make sure the SRC is plugged in correctly ( ounting holes
align perfectly). Some SRCs are lacking index keys on the
connectors, making it possible to insert them with one row
offset right or left. In this case, the MVR won't turn on
(but it will not get damaged).
Fasten the SRC with the supplied M3x6 screws.
Re-connect the cover's ground connection to the base.
Slide the top cover into the front panel slit, then close the lid and mount the
cover using the two black screws.
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SRC-64
3. CONFIGURATION
3.1. Methods
The SRC-64 can be configured by different methods below. We recommend
configuration by the web interface because it's most obvious and allows you to do
channel-wise routing, but basic configuration is also available via the front panel.
For automation purposes, the SRC can also be configured on the command line
(telnet or serial).
◆Front panel
Clock source selection and interface-wise routing is available through the front
panel:
MVR- kII: Use the Source and Domain A/B buttons in the "Clock/SRC" group.
MVR-64: Enter the "Clock" menu, move the cursor to ☼ ASRC and push OK to
enter SRC configuration.
◆Web control
Configuration via the web interface is the recommended method. This enables you
to route arbitrary channels through the SRC up to its full capacity.
◆Co and line
The SRC can be fully configured via the command line. Refer to the MVRs
command line description, or type "help" at the command prompt.
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User's Manual
3.2. Configuration steps
Without SRC, all interfaces run on the same shared "Clock A". With SRC installed,
one or more interfaces can be set to run at an alternative clock "Clock B".
Whenever a translation between clock do ains A and B is needed, audio is
auto atically sa ple-rate converted by routing it through the SRC module. This
process happens transparently in the background.
The configuration process involves the follwing steps which can be carried out in
any order:
1. Clock source selection for Clock A and Clock B
2. Assignment of inputs and/or outputs to either clock domain A or B
3. Routing
◆Front panel
The method for configuring the SRC-64 depends on the multiverter model:
MVR- kII
Clock source selection for A/B:
In the “Clock/SRC” menu, push
the Source button.
Move the cursor to the desired
clock source under the respective
"A" or "B" column.
Push the encoder OK or press
the Source button to select the
clock source, or press ⮌ Back to
cancel.
Depending on the selection, you
will be asked to provide
additional settings
(Samplerate/SMUX...)
Assign ent of inputs/outputs to
clock do ain A or B:
In the “Clock/SRC” menu, push
the Domain A/B button.
MVR-64
Assign ents of inputs/outputs to
clock do ain, and Clock B source
selection:
Push the Set button in the
"Clock" menu.
Navigate the cursor to the
☼ SRC LED and push OK to
confirm. The seven-segment
display shows 1n to indicate
the input interface selection
mode.
You can now select the row
(input) which should run on clock
B. Selecting "X" disables SRC for
the input. Note: Some modes
show two rows at once. This is
used if you want to concatenate
the channels from two inputs for
64ch at 96kHz.
Push OK to confirm.
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SRC-64
MVR- kII (continued)
Move the blinking bar to the
desired input (horizontal) or
output (vertical) and push the
encoder to set "Clock B" for the
selection. This is indicated by a
white bar and SRC Status LEDs
"A>B"/"B>A" lighting up.
Repeat above step until all your
assignments have been done.
Then press ⮌ Back to exit the
menu.
Routing
Perform the routing as usual.
When the SRC is configured, all
routings that use the SRC will
show up as white when working.
The SRC Status ☼ A>B and/or
☼ B>A LEDs indicate white
when the SRC is active.
MVR-64 (continued)
The seven-segment display
shows 0u to indicate the
output selection mode. Select the
column (output) which should run
on clock B. Selecting "X"
disables the SRC for the output.
Push OK to confirm.
The seven-segment display
shows A5 to indicate the
"ASRC" clock selection mode,
and the ☼SRC LED shows
orange. Navigate the cursor to
the desired clock source and
push OK to confirm.
Depending on the selection, you
will be asked to provide
additional settings (SMUX...)
Routing
Perform the routing as usual.
When the SRC is configured, all
routings that use the SRC will
show up as orange when
working. The clock LEDs in
orange indicate the setting for
clock B.
Only AES3, ADAT, and MADI support different sample rates
for input and output. For these interfaces, you can choose
clock domains for input and output independently.
For AES50, Dante and FlexLink, the input and output clock
domains are coupled together, which means that both input
and output use always the same sample rate.
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User's Manual
◆Web
The settings for the clock sources can be found under the "CLOCKS" tab. When
using the SRC, make sure to switch "SRC function" to on.
When the SRC module is installed and enabled, its behavior can be selected in the
SRC section on the bottom. The settings above show a typical configuration for
converting MADI 96k to Dante 48k.
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