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

User Manual IP-4c V1.96 4
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

User Manual IP-4c V1.96 5
23. Technical Data...................................................................................................................................................115

User Manual IP-4c V1.96 6
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.

User Manual IP-4c V1.96 7
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”.

User Manual IP-4c V1.96 8
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.