2wcom IP-4c User manual

IP-4c Audio over IP codec
User Manual
Professional multi-format four channel
audio over IP coder · decoder · transcoder
User Manual IP-4c V1.96
Screenshots: App Version 1.19, 1.22, 1.23, 1.27 beta 23
July 2021

User Manual IP-4c V1.96 2
Content
Content .............................................................................................................................................................................2
1. Symbols in This Manual ............................................................................................................................................6
1.1. References and Hyperlinks in This PDF File ......................................................................................................6
1.2. Warning Signs and Their Meaning ....................................................................................................................6
1.3. Tags and Their Meaning....................................................................................................................................6
2. Introduction ..............................................................................................................................................................7
3. Safety Instructions ..................................................................................................................................................10
4. Supplied Parts .........................................................................................................................................................12
5. Manufacturer..........................................................................................................................................................13
6. Installation ..............................................................................................................................................................14
7. Operation................................................................................................................................................................15
7.1. Device Control via Web Interface ...................................................................................................................15
7.2. Operation via LCD/Jog Wheel .........................................................................................................................15
7.2.1. Description of the Menu Navigation.......................................................................................................15
7.2.2. Navigation Structure...............................................................................................................................17
8. First Steps................................................................................................................................................................19
8.1. Power Supply ..................................................................................................................................................19
8.2. Network Configuration ...................................................................................................................................20
8.3. Web Interface .................................................................................................................................................20
8.4. Connecting the Device ....................................................................................................................................21
8.5. Codec Settings.................................................................................................................................................21
8.6. Set up Alarm....................................................................................................................................................22
9. Control Elements and Connectors ..........................................................................................................................23
9.1. Front Panel......................................................................................................................................................23
9.2. Back Panel.......................................................................................................................................................24
10. Network Settings.................................................................................................................................................25
10.1. TCP/IP: Configuration of the Ethernet Interfaces...........................................................................................25
10.2. Monitoring Function: Configuration of SNMP ................................................................................................25
10.3. Monitoring Function: Configuration of EMBER+ ............................................................................................26
10.4. NTP Settings: Configuration of Date and Time ...............................................................................................27
11. Preset Input Sources ...........................................................................................................................................29
11.1. Presets for TS/SAT...........................................................................................................................................30
11.2. Presets for TS/IP..............................................................................................................................................30
11.3. Presets for TS/SRT...........................................................................................................................................32
11.4. Presets for Elementary Stream.......................................................................................................................33
11.5. Presets for Livewire.........................................................................................................................................35
11.6. Presets for SRT ................................................................................................................................................36

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11.7. Presets for SIP .................................................................................................................................................38
11.8. Presets for Icecast...........................................................................................................................................39
11.9. Presets for Internal Storage............................................................................................................................40
11.10. Presets for XLR ................................................................................................................................................40
12. Ancillary Data Settings ........................................................................................................................................42
12.1. Configurng Ancillary Data for Audio Inputs ....................................................................................................42
12.2. Configuring Ancillary Data for Audio Outputs ................................................................................................42
13. Encoder Configuration ........................................................................................................................................43
13.1. Preset Codec Profiles ......................................................................................................................................43
13.2. Assign Input Source/Codec Profile..................................................................................................................44
13.3. Set up Encoder Outputs..................................................................................................................................46
13.3.1. Output TS Multiplexer.............................................................................................................................47
13.3.1.1. Multiplexer Configuration...............................................................................................................47
13.3.1.2. TS Multiplexer Output over IP.........................................................................................................48
13.3.1.3. TS Multiplexer Output over ASI (optional)......................................................................................53
13.3.2. Output Elementary Streams ...................................................................................................................53
13.3.3. Output SRT..............................................................................................................................................55
13.3.4. Output Icecast Source Client...................................................................................................................56
13.3.5. Output Icecast.........................................................................................................................................57
13.3.6. Output Internal Storage..........................................................................................................................57
13.4. Set up Encoder Input Level .............................................................................................................................57
13.5. Set up FEC for Encoder....................................................................................................................................58
13.6. View the Encoder Status.................................................................................................................................59
14. Decoder Settings.................................................................................................................................................65
14.1. Assign and Activate Source Streams...............................................................................................................65
14.2. Set up FEC for Decoder ...................................................................................................................................67
14.3. Set up Dual Streaming und Stream4sure........................................................................................................67
14.4. Set up Decoder Output Level..........................................................................................................................68
14.5. Set up Buffer ...................................................................................................................................................69
14.6. Define Switch Criteria .....................................................................................................................................69
14.7. View the Decoder Status.................................................................................................................................71
15. Monitoring and Alarm Control............................................................................................................................74
15.1. Status LEDs......................................................................................................................................................74
15.2. Set up Monitoring for Audio Inputs................................................................................................................75
15.3. Set up Monitoring for Audio Outputs.............................................................................................................76
15.4. Set up the Alarm Control of the Device ..........................................................................................................77
15.5. Audio Monitoring via Live Listening................................................................................................................78
15.6. Audio Bypass Relay (optional).........................................................................................................................80

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16. Handling of AES67...............................................................................................................................................82
16.1. Generate AES67 Stream..................................................................................................................................82
16.2. Receive and decode AES67 Streams...............................................................................................................83
17. Interface Settings................................................................................................................................................86
17.1. Audio XLR ........................................................................................................................................................86
17.1.1. Set up Input and Output Gain.................................................................................................................86
17.1.2. Sample Rate Converter ...........................................................................................................................86
17.2. Headphone......................................................................................................................................................88
17.3. DTE ..................................................................................................................................................................88
17.4. GPO .................................................................................................................................................................90
17.5. GPI...................................................................................................................................................................92
17.6. ASI Output.......................................................................................................................................................93
18. Audio over IP Settings.........................................................................................................................................95
18.1. Set up SIP Configuration .................................................................................................................................95
18.1.1. Prepare the SIP connection.....................................................................................................................95
18.1.2. Create new SIP Phonebook Entries.........................................................................................................96
18.1.3. Assign the Codec Profiles to the SIP Contacts.........................................................................................97
18.1.4. Establish Connection via SIP Dial (Easy2Connect) ..................................................................................98
18.2. Set up SAP Service.........................................................................................................................................100
18.3. Set up PTP Configuration ..............................................................................................................................101
18.4. Set up Livewire Configuration.......................................................................................................................101
19. Buffer Delay Management................................................................................................................................102
20. Device Settings..................................................................................................................................................103
20.1. Enter the Device Information .......................................................................................................................103
20.2. View the System Information .......................................................................................................................103
20.3. Set up Rights .................................................................................................................................................105
20.4. View Ancillary Data Status ............................................................................................................................106
20.5. View the Log..................................................................................................................................................106
20.6. Upload and Activate Settings Stored Locally ................................................................................................107
20.7. Save Settings to Local File .............................................................................................................................108
20.8. Upload and Activate Firmware Stored Locally..............................................................................................108
20.9. Set up Time ...................................................................................................................................................108
20.10. Configure User Accounts...............................................................................................................................109
20.11. Set up the Session Timeout...........................................................................................................................111
20.12. Reboot the Device.........................................................................................................................................112
20.13. Restore Factory Settings ...............................................................................................................................112
21. Maintenance and Servicing...............................................................................................................................113
22. Troubleshooting................................................................................................................................................114

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23. Technical Data...................................................................................................................................................115

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1. Symbols in This Manual
1.1. References and Hyperlinks in This PDF File
The original text document of this manual uses bookmarks for reference purposes. If you read this manual as a non-
print version, please note that this PDF file also contains all bookmarks! So you can navigate through the document
via the content overview in your PDF viewing software if you activate “bookmarks view”.
All references to pages, sections, figures and tables as well as hyperlinks in the text identify a location within this PDF
file. Just click the reference to find the referred passage in the text!
1.2. Warning Signs and Their Meaning
The following warning signals are used in this user manual:
Warning of general danger location
Warning of electric shock
Warning of hot surface
Warning of fire hazard
1.3. Tags and Their Meaning
The following signal words are used in the product documentation in order to warn the reader about risks and
dangers. The tags described here are always used only in connection with the related product documentation and
the related product.
Indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
Indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
Describes precautions necessary to protect the equipment.
NOTE: Useful information for the user.

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2. Introduction
Description The IP-4c is a professional Audio over IP Codec. It is equipped with high quality multi-format
audio encoder and decoder and is able to distribute audio data using the Internet Protocol (IP)
via a 10/100/1000-Base-T network interface. The device has two main operation modes:
- transmitting Audio over IP;
- receiving Audio over IP.
The IP-4c is able to encode, decode and transcode several Audio over IP streams (RTP/RTCP,
UDP). Furthermore, the IP-4c has up to 4 digital stereo channel inputs and up to 2 stereo analog
channel inputs.
Figure 1: Overview of the possible solution for the IP-4c
Stream protection The IP-4c is equipped with a combined mechanism for improving the stability and robustness of
the audio data distribution over IP:
•Pro-MPEG FEC (forward error correction) scheme to account for bit errors or packet loss (IP).
•Dual Streaming on two physically separated Ethernet ports for elementary stream and
transport stream over IP (RTP/UDP) for redundancy
(2x Ethernet LAN 10/100/1000 Base-T (RJ45) interface).
Audio
•The IP-4c is equipped with balanced analogue (2x Stereo L/R, integrated XLR) and digital (4x
Stereo AES/EBU integrated XLR) interfaces with a configurable level for the audio inputs
(over web interface).
•If you activate 4 channels, no analog audio input/output option is available.
•If you activate 2 channels, the inputs/outputs are switchable between analog and digital.
Stream4Sure (optional) enables continuous audio transmission using sample precise seamless data selection:
•Software for secure redundancy: automatical switch to the data with the best quality
•up to 4 source streams with different codecs for each encoder
•combinable with FEC, Dualstreaming (IP packet based redundancy) and SFN
•must be activated in both devices: encoder as well as decoder (e.g. IP-4c)
•available only for output type “Elementary stream (RTP/UDP)” and “TS/IP”.

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Figure 2: 2wcom Stream4Sure Overview
Monitoring
•Audio inputs
•Device functions (power failure, temperature etc.)
•LED, log messages
Alarm reporting via
•SNMP traps
•Activation of floating relay contacts
•LED, log messages
Control
Settings backup
The IP-4c is able to store and load all settings through the web interface to a local file.
SNMP, NMS
Additional monitoring of the device using SNMP. Rudimentary device control, status
information and alarm trap generation is featured. Optional: control via centralized Network
Management System (NMS).
LCD and jog wheel
Initial configurations and major status information can be called up via LCD menu and jog
wheel.
GPIO Forwarding
GPI transmission/forwarding embedded in audio IP streams.
Ember+
Ember+ protocol allows 3rd party application to gain access to parameters of the respective
device. You can also receive status information and react to it. These parameters are
available via the GUI interface as well.
HTTP web interface
The unit is controlled via built-in web interface.

User Manual IP-4c V1.96 9
Figure 3: Web interface of the IP-4c
SIP Audio streaming over IP is possible by means of SIP connection. For a quick SIP connection, an
Easy2Connect (SIP) function is available. It uses saved contacts und preconfigured streaming settings
to establish the connection by one click.
User Only experienced technical personnel or engineers should operate the IP-4c.
NOTE: Read this manual carefully before attempting to operate the unit. Save this user manual for
future reference –it contains important safety and operating instructions for the device.

User Manual IP-4c V1.96 10
3. Safety Instructions
For a secure operation of the device the user should read and hold on all safety instructions mentioned in this
manual before the first operation.
Any changes on the device or operation of the parts not having been proved and released by the manufacturer can
lead to unforeseen damage.
Every improper use of the device and all actions on the device not mentioned in this user manual are regarded as a
not allowed misuse outside the statutory limits for liability of the manufacturer.
If you sell the device or give it to another person, attach this user manual to the device.
Never operate the device, if it does not function properly. If the device or its part is out of order, put it out of
operation. Never repair the device by yourself. If there are any damages in the device, send it immediately to 2wcom
Systems for maintenance or dispose it professionally according to the regional disposal regulations.
Keep the device away from unauthorized persons.
DANGER
DANGER of electric shock
Plug the device into a grounded power socket only. Never remove the grounding wire/contact.
Never open the housing of the device by yourself. Never touch open electrical parts.
Dangerously high voltages are present inside the housing. Even after disconnecting the mains
supply, dangerously high voltage levels may be present for a certain time.
Do not touch the device with wet hands.
Never expose the device to liquids. If any liquid comes inside the housing, immediately disconnect
the device completely from the power supply. Do not continue operating the device.
FIRE HAZARD of overheating or electric shock
Ensure sufficient heat dissipation during operation. Avoid following when installing the device:
−non-ventilated environment, for example a narrow shelve or built-in wardrobe;
−extremely warm or cold place;
−direct sunlight exposure;
−too high or too low temperature;
−extremely wet or dusty environment.
Do not operate the device in the presence of flammable gases.
Do not cover the ventilation openings of the device to avoid heat accumulation.
Do not put objects with open flames such as burning candles on the device.
Do not put heavy objects on the supply cord. A damaged cord can lead to fire or electric shock
hazards.
To disconnect the supply cord, drag always the plug and never the cable to avoid the cord damage.
WARNING
Non-compliance with the safety instructions can lead to serious injury.

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WARNING
WARNING of explosive atmosphere
Risk of the explosion hazard.
Do not use the device in an explosive environment.
WARNING of hot surface
The device is equipped with an active cooling system. The surface of the device can still heat up
during operation.
Do not touch the surface of the device during operation.
CAUTION: Risk of equipment damage
Before the first operation:
Check the housing, the front panel, the supply cord and the plug for visible damage (e.g. scratches,
cracks, damaged isolation and abrasion)
In case of damage, unplug immediately the supply cord. Never operate device with a damaged
supply cord.
All damaged components must be replaced immediately.
Installation:
Use only a grounded three-wire power supply cord and -plug that complies with the national
regulations.
If necessary, another than the supplied supply cord has to be used, in compliance with the
regulations of the country where the device is operated.
Make sure that the AC power outlet is next to the device and readily accessible to the user.
Installation of other devices:
External devices which are connected to the device could be damaged by the device or damage the
device itself if the output levels exceed the specified limits.
Cleaning:
Do not use corrosive detergents on the device such as benzine, thinner, alcohol or acetone. Clean
the surface of the device only with a soft dry cloth.

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4. Supplied Parts
▪IP-4c
▪Power supply cord*
▪Breakout cable for 4x DTE input and 4x DTE output (optional)
▪User manual in PDF format to download; on request by paper
*available for different countries
NOTE: The scope of delivery may deviate in special cases.

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5. Manufacturer
2wcom Systems GmbH • Am Sophienhof 8 • 24941 Flensburg • Germany
Phone [phone] • Fax [phone]
[email protected]om • www.2wcom.com
© 2021 • 2wcom and the 2wcom logo are registered trademarks of 2wcom in Germany and other countries

User Manual IP-4c V1.96 14
6. Installation
Best setup location The device should be installed in a 19” rack. Avoid direct sunlight, proximity to
radiators and air conditioning, dust, water, and chemicals. Choose a rack location
that permits a clear view of the indicators on the device and ensure a sufficient
heat dissipation of the device.
Mains supply connection The device is designed for operation with 100 to 240 V
AC, 50 to 60 Hz. Check the corresponding device labeling
for compatibility to the domestic line voltage and
frequency before connecting the IEC power connector to
the mains supply!
Check the corresponding device labeling for compatibility
to the domestic line voltage and frequency before
connecting the IEC power connector to the mains supply!
No power switch is available; unplug mains supply connector to
remove power. Keep the mains supply plug readily accessible to the
user.
WARNING
WARNING
Disconnect mains power plug before you open the housing.
Repair of the equipment must only be carried out by authorized and qualified personnel.
Read also Section „Safety Instructions”(see page 10).

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7. Operation
7.1. Device Control via Web Interface
The device has an integrated web interface. All configurations and operations can be made using a web browser.
To control the device via web interface:
Connection: For network configuration and access to the web interface, see section 8.2 “Network Configuration” on
page 20.
NOTE: To maintain security, you can activate session timeout function and the current user will be
automatically logged out after the configured period of inactivity (for more information see section
20.11 “Set up the Session Timeout” on page 110).
Buttons:
−if you want to save any changes made in the configuration of the device, press the “Save“ button;
−if you do not want to save the changes, press the “Cancel“button.
NOTE: Each block has to be saved individually.
If you change data in several blocks, you must click the “Save“ button under each block, in order to
save all changed data.
Otherwise, the unsaved block will be reset to the previously saved status.
Numbers: use a decimal point as the decimal separator in numbers in the input fields (i.e. “6.5” for six and a half).
Input fields: After entering a number or text in an input field, you must click on the corresponding “Save“ or “OK“
button to activate the changes. Alternatively you can use the ENTER-key of your computer keyboard.
The next sections explain the separate web interface functions. The operation via jog wheel and LCD on the device is
similar to these descriptions.
7.2. Operation via LCD/Jog Wheel
7.2.1. Description of the Menu Navigation
Some basic functions of the device can also be operated via the LCD/jog wheel at the device.
The possible movements of the jog wheel are:
Turn
Push

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The display consists of the two main navigation menus:
•Status overview (turn the jog wheel left or right)
•Configuration menu (push the jog wheel)
Via display and jog wheel you can:
•configure network settings for the first access to the device over the web user interface
•view the device status
•configure outputs headphone interface
•reset admin password
•reset to system defaults
•reboot the device
NOTE: In this user manual, if a certain configuration is possible over the LCD/jog wheel, the
corresponding menu path is shown at the end of the section, for example:
LCD menu: Configuration Menu→Network→Data 1
After the warmstart/coldstart of the device the display shows the default screen of the “Status Overview” menu:
NOTE: If you navigate in the LCD menu, the display changes after some minutes to the “Status
Overview” menu.
−To change from the default “Status overview”menu to the “Configuration menu”, push the jog wheel.
−To move the cursor in the menu structure, turn the jog wheel.
−To open a menu entry or to confirm a setting, push the jog wheel.
−To select a configurable menu entry, turn the jog wheel.
−To adjust a menu entry, push and then turn the jog wheel.
−To confirm the adjustment, push the jog wheel.
−To return to a previous menu level, activate the menu entry “<<”.
−Some settings need a restart of the device to be activated.

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7.2.2. Navigation Structure
Status Overview menu
Status Overview Menu
(turn jog wheel)
Levels
System Info

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Configuration menu
Configuration menu
(push jog wheel)
Interface Headphone
Network
Ctrl
Data 1
Data 2
System
Reset admin password
Reset to system defaults
Reboot

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8. First Steps
The following section contains instructions for a quick start.
✓You have already unpacked and installed the device in an appropriate place.
8.1. Power Supply
Make sure that the device and the contained cords are compatible to the domestic line voltage and
frequency!
The device has optionally two plug-in exchangeable power supply units which can be equipped with different
redundant power supply connectors:
230 V AC, 90…260 V AC, 47…63 Hz
If the device is compatible, connect the power supply cord fully to the IEC power
connector at the back panel of the device and an independent mains power outlet.
-48 DC Neutrik powerCON socket, aut. switchover (NAC3MPA-1)
-Neutrik powerCON connector (NAC3FCA)
NOTE: No power cords are delivered!
Assembly Instruction for the 48V connector:
To connect your cable to the delivered terminal blocks for [Power IN], insert the wires into the delivered terminals
and fasten the screws with a POZIDRIV® screwdriver No 1 to maximal torque of 0.5 Nm.
NOTE: the specification for the power supplies and the position of the poles in the connector and in the [Power IN]
socket on the back panel of the housing as shown in Figure 4:
Figure 4: Wiring of the 48V connector (left) and of the 48V socket (right), rear side
N –“neutral”
L –phase conductor “line”
If you see the voltage of 48+ V and 0 V, fasten the +48 V wire to “L” in the connector.
If you use the voltage 0 V and -48 V, fasten the 0 V wire to “L” in the connector.
The “Power” LED will turn on green if both power supply cords are connected.

User Manual IP-4c V1.96 20
The “Power” LED will blink green/red if only one power supply cord is connected.
If the IP-4c is equipped with the optional plug-in power supply units, the left and the right plug-in power supply units
are independent from each other. You can exchange one of them in the IP-4c during ongoing operation if one power
supply unit fails. To unplug the defect power supply unit, just pull out carefully the plug housing. Exchange the defect
power supply unit by an intact power supply unit.
The current information about the operation of the both power supply units you can view over the
web interface of the device under Status→Device (see Figure 86 on page 105).
8.2. Network Configuration
False connection of the Ethernet interfaces will lead to incorrect operation
Use the [Data 1/Data 2] connectors only for the data transfer.
Use the [Ctrl] connector only for the access to the device via the web interface and for SNMP.
For the [Ctrl] interface DHCP is enabled per default. When you connect the device to your DHCP enabled network, it
will automatically get the IP configuration for the [Ctrl] interface. To find out the obtained IP address turn the jog
wheel to the left to see the "System Info" display. Here you will find (besides other system information) the obtained
IP address.
To change the IP setup of the device via the LCD menu:
1. Push the jog wheel to enter the menu.
2. Turn the jog wheel to select the "Network" menu entry and push the jog wheel.
3. Push the jog wheel to enter the menu for the [Ctrl] interface.
4. Configure the settings for your existing IP network (IP address, netmask, gateway etc.; consult the responsible
network administrator if applicable).
5. Turn the jog wheel until the "Save" menu item is selected and push the jog wheel.
6. When asked if the settings should be saved and restart, select "Yes".
7. Connect a network patch cable to the 10/100/1000-Base-T connector of the [Ctrl] interface on the back panel of
the device and your existing network.
Your device is now connected to the IP network.
8.3. Web Interface
The device can be fully operated with an internet browser via the integrated web interface. For this purpose use a
computer that is connected to the same IP network that the device is connected to.
To operate the device via the web interface:
1. Start an internet browser (always use an up-to-date version with Java Script activated).