Four Audio DBS1 Instruction manual

DBS 1
Quick User Guide
Version 1.0.0
14.11.2013
©Four Audio GmbH & Co. KG 2013
The full manual can be downloaded from here:
www.fouraudio.com/en/products/dbs1.html
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1 Important Safety Information
This device has been manufactured and tested with your safety in mind. However, improper use can
result in potential electric shock or fire hazards.
To avoid defeating the safeguards that have been built into the device, please observe the precautions
discussed in this document.
Warnings on the device
The lightning flash with arrowhead symbol, within a triangle, is intended to alert you to the presence of
uninsulated “dangerous” voltages within your device’s enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within a triangle is intended to alert you to the presence of important instructions
in the literature accompanying the device.
Other warnings
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER OF THE DEVICE.
THERE ARE NO USER-SERVICEABLE PARTS INSIDE IT.
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS DEVICE TO RAIN
OR MOISTURE.
DO NOT PERFORM ANY SERVICING UNLESS YOUARE QUALIFIED TO DO SO BY FOUR AUDIO.
REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL.
SERVICING THE DEVICE YOURSELF WILL INVALIDATE THE WARRANTY.
Ventilation
Slots and openings in the casing of the device are provided for ventilation, to ensure reliable operation
of the device and to protect it from overheating.
Never block the ventilation openings by placing the device on a bed, sofa, rug or other similar surface;
Never cover the ventilation openings with items such as newspapers, table-cloths etc.
Do not place the device in a built-in installation such as a bookcase or rack unless proper ventilation is
provided or you have adhered to the manufacturer’s instructions;
Water and moisture
Do not expose this device to dripping or splashing and ensure that no objects filled with liquids, such as
vases, are placed on the device
SAVE THIS INFORMATION FOR FUTURE REFERENCE
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2 Front panel
Each input and output can be configured individually. Depending on input/output selection some
elements have different meanings.
LEDs
Element Function / Meaning
OUT 1 Output 1 selected
OUT 2 Output 2 selected
IN 1 Input 1 selected
IN 2 Input 2 selected
CLIP 1 Indicates clipping of input 1
CLIP 2 Indicates clipping of input 2
MUTE / 48V Output: Mute On Input: Phantom Power On
PH.INV / LOW CUT Output: Phase Invert On Input: Low Cut On
SYNC see table below
SYS see table below
LINK Ethernet connection established
ACT blinks on network activity
SENS (8 LEDs) see table below
Push Buttons
Element Function / Meaning
SEL Selection of Input / Output see table below
MUTE / 48V On / Off Output: Mute Input: Phantom Power
PH.INV / LOW CUT On / Off Output: Phase Invert Input: Low Cut
UP Selection of input sensitivity / output range
DOWN Selection of input sensitivity / output range
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3 Usage
3.1 Power Supply
DBS 1 can be powered by the provided 5 V desktop power supply or by power over ethernet (PoE).
The desktop power supply can be connected to the jack on the rear. External power supply and PoE
can be used simultaneously to achieve redundancy. The metal bracket on the rear provides a pull relief.
3.2 hannel Selection
Pushing button SEL steps through the following six states for channel selection.
State Selected Channel(s)
1 Out 1+2
2 In 1+2
3 Out 1
4 Out 2
5 In 1
6 In 2
After state 6 it turns over to state 1.
While stepping through the selected channels the LEDs are updated to display the current settings.
The settings of the selected channel(s) can be changed by pushing one of the other four buttons. Each
button has a different meaning depending on the selection of input or output as shown in previous
chapter.
If two channels are selected (state 1 and 2) the LEDs are showing settings of channel 1 only! It is not
indicated if channel 2 has a different setting! Parameter changes are relative to the current setting of
channel 1 and copied to channel 2.
3.3 Sensitivity
The front panel imprint shows 8 out of 22 possible output ranges. If a “fine step” range is selected, the
two LEDs above and below the selected value are lit as shown in the table below. Up and down button
changes the state. State 1 and 22 are endpoints, there is no turn over to the other end of the scale.
State LEDs lit Output ranges
[dBu] Veff Vpeak
1 15 15 4,36 V 6,16 V
2 6 & 15 12 3,08 V 4,36 V
3 6 & 15 9 2,18 V 3,09 V
4 6 6 1,55 V 2,19 V
5 -3 & 6 3 1,09 V 1,55 V
6 -3 & 6 0 775 mV 1,10 V
7 -3 -3 548 mV 776 mV
8 -12 & -3 -6 388 mV 549 mV
9 -12 & -3 -9 275 mV 389 mV
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10 -12 -12 195 mV 275 mV
11 -21 & -12 -15 138 mV 195 mV
12 -21 & -12 -18 97,5 mV 138 mV
13 -21 -21 69,0 mV 97,6 mV
14 -33 & -21 -24 48,9 mV 69,1 mV
15 -33 & -21 -27 34,6 mV 48,9 mV
16 -30 -30 24,5 mV 34,6 mV
17 -33 & -36 -33 17,3 mV 24,5 mV
18 -33 & -36 -36 12,3 mV 17,4 mV
19 -39 -39 8,69 mV 12,3 mV
20 -39 & -48 -42 6,15 mV 8,70 mV
21 -39 & -48 -45 4,36 mV 6,16 mV
22 -48 -48 3,08 mV 4,36 mV
Bold values are factory default values. All functions can be set individually for each channel.
The front panel imprint shows 8 out of 24 possible input sensitivity settings. If a “fine step” sensitivity is
selected, the two LEDs above and below the selected value are lit as shown in the table below. Up and
down button changes the state. State 1 and 24 are endpoints, there is no turn over to the other end of
the scale.
State LEDs lit Input Sensitivities
[dBu] Veff Vpeak
1 -45 -45 4,36 mV 6,16 mV
2 -45 & -33 -42 6,15 mV 8,70 mV
3 -45 & -33 -39 8,69 mV 12,3 mV
4 -45 & -33 -36 12,3 mV 17,4 mV
5 -33 -33 17,3 mV 24,5 mV
6 -33 & -21 -30 24,5 mV 34,6 mV
7 -33 & -21 -27 34,6 mV 48,9 mV
8 -33 & -21 -24 48,9 mV 69,1 mV
9 -21 -21 69,0 mV 97,6 mV
10 -21 & -12 -18 97,5 mV 138 mV
11 -21 & -12 -15 138 mV 195 mV
12 -12 -12 195 mV 275 mV
13 -12 & -3 -9 275 mV 389 mV
14 -12 & -3 -6 388 mV 549 mV
15 -3 -3 548 mV 776 mV
16 -3 & 6 0 775 mV 1,10 V
17 -3 & 6 3 1,09 V 1,55 V
18 6 6 1,55 V 2,19 V
19 6 & 15 9 2,18 V 3,09 V
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20 6 & 15 12 3,08 V 4,36 V
21 15 15 4,36 V 6,16 V
22 15 & 30 18 6,15 V 8,70 V
23 15 & 30 21 8,69 V 12,3 V
24 30 30 24,5 V 34,6 V
Bold values are factory default values. All functions can be set individually for each channel.
A short form of both tables can be found on the rear of the unit.
3.4 Mute
If an output channel is selected button MUTE/48V toggles MUTE between ON and OFF.
3.5 Phase Invert
If an output channel is selected button PH.INV/LOW CUT toggles PHASE INVERT between ON and
OFF.
3.6 Phantom Power
If an input channel is selected button MUTE/48V toggles 48V PHANTOM POWER between ON and
OFF.
3.7 Low ut Filter
If an input channel is selected button PH.INV/LOW CUT toggles the analog low cut filter between ON
and OFF.
3.8 Status of Dante interface
The status of the Dante interface is displayed with LEDs SYNC and SYS as shown in table below.
Color LEDs Description
SYS red SYS System booting
SYS green SYS System ready
SYNC amber SYNC PTP currently syncing
SYNC red SYNC PTP error / no PTP sync / PTP disabled
SYNC green SYNC PTP slave, with PTP sync
SYNC green flashing SYNC PTP master
All flashing green SYS + SYNC Identify
All flashing amber SYS + SYNC Firmware upgrade in progress
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All flashing red SYS + SYNC Failsafe – corrupt or missing application image
Note: PTP = Precision Time Protocol (One device in the Dante audio network is the Dante clock master.
all other devices are Dante clock slaves synchronized by PTP.)
3.9 Remote ontrol
DBS 1 is prepared for remote controlling all parameters. Please check for availability of new software
on our homepage.
3.10 Dante settings
All Dante features can be configured and monitored with Dante Controller which is a software
application provided by Audinate, the inventor of Dante. Dante Controller and its user manual can be
downloaded from Audinate's homepage:
www.audinate.com Home => Support => Software Downloads => Dante Controller
If you are not familiar with the Dante Audio network we strictly recommend to read
the user manual of the Dante Controller software first and check their FAQ!
FAQ http://dev.audinate.com/kb/webhelp/home.htm
Many options, features and behaviours which a user expects to be device specific are actually Dante
specific. Thus, most of the following explanations are taken from the Dante Controller user manual or
online FAQ. These passages are highlighted in grey.
Please ensure to use latest version of Dante Controller: 3.4.2 or higher.
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4 Network Setup
Automatic network configuration
A Dante-enabled device connected to a network will automatically set up its own network configuration,
including its IP address.
If the network has a DHCP server, which may be the case for installed networks, it will receive its IP
configuration using the standard DHCP protocol.
On a network without a DHCP server, which may be the case for temporary or smaller networks, the
Dante-enabled device will automatically assign itself an address using link local protocols, in the same
way PCs and printers often do.
4.1 Troubleshooting Switch onfiguration and abling
Cables are the most vulnerable part of a network system.
If you suspect cabling issues, check for:
•Faulty or manually terminated cables
•Unplugged /badly connected Ethernet cables
•Misconfigured switches
•Dante devices removed or turned off
Symptoms of switch or cabling issues
•You cannot see (some) devices in the Dante Controller network view
•Dante Controller shows orange “unsuccessful subscription” icons, which usually means a
device that was present earlier is now missing
•Faulty cables can lead to intermittent faults, which may be heard as dropped samples or
“cracks” in the audio
•Dante devices may appear and disappear in Dante Controller
Switch and Cabling Checklist
•Are all the connected link/status lights on the switch lit or flashing as expected?
•Is the switch powered on?
•Is the cable correctly plugged in at the switch and the PC or equipment?
•Is the switch correctly configured?
•Perhaps QoS or VLANs have been incorrectly set up
•Are you using a switch from another application with an unchecked or tested configuration?
•Consult the switch manual and check the switch configuration.
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