IP LINK 100 Single Bidirectional Stereo Audio IP STL

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SKU: INT-IXIPL100 Categories: ,


IP LINK 100 Single Bidirectional Stereo Audio IP STL


Offering an array of audio coding options, the IP Link codecs are suitable for use in Studio to Transmitter Links (STLs) as well as audio contribution and distribution networks. Support for IP multicast and multiple unicast streams enables one encoder to feed multiple decoders. By incorporating three IP Interfaces that can be used for streaming and management, the IP Link systems can provide a level of reliability not seen in comparably-priced codecs. As the latest addition to the Intraplex family of audio transport products, the IP Link audio codecs bring legendary Intraplex reliability to the IP codec market.




  • IP Link 100: Single bidirectional stereo audio channels
  • Standard: Linear, AAC-LC, Opus and G.722 audio coding
  • Optional: AAC-HE, AAC-HEv2, AAC-ELD, MPEG2, MPEG3 and Enhanced aptX audio coding
  • Other transport modes: Transparent AES up to 192 kS/s to support composite FM multiplex signal over AES
  • Protocol Encapsulation: RTP, SHOUTcast/ICEcast, MPEG-TS
  • Three independent IP interfaces for redundant network operation
  • Optional redundant power supply
  • Built-in silence sensor with optional stream switch over
  • Automatic backup to audio playout from USB drive or external audio source
  • Multicoding – can encode the same audio source in multiple formats for STL, backup, and Web streaming
  • Optional Dynamic Stream Splicing providing “hitless” operation and T1/ E1 circuit like performance on less predictable IP networks
  • Prioritized stream sources at the output with automatic switch over and switch back between primary and secondary streams and backup sources (USB, external audio source)
  • Programmable RTP level Forward Error Correction(FEC) scheme
  • Programmable Time Diversity and Interleaving of streams to combat burst packet losses
  • Integrated with Intraplex IP Link Scheduler for automated scheduled program switching
  • N+1 redudancy with Integrated control of external switching equipment
  • Support for IP multicast and multiunicast
  • Web browser user interface and SNMP network management


Four multipurpose contact closure inputs and outputs provide:

  • Transport of logic signals with time-alignment to audio
  • Stream control
  • Alarm notification



  • Channels: IP Link 100: 1 stereo (or 2 mono) program channels, encode and decode

Coding Options Standard:

  • Linear, AAC-LC, Opus, G.722
  • Optional: MPEG2, MPEG3, AAC-HE, AAC-HEv2, AAC-ELD, Enhanced aptX and Transparent AES transport
  • Streaming: EBU N/ACIP Tech 3326, SHOUTcast/Icecast, MPEG Transport stream over IP, Transparent AES, SynchroCast
  • SynchroCast Delay: Programmable up to 1 second with 1 microsecond accuracy
  • Multicoding: Allows the input to be encoded and streamed out using multiple different algorithms simultaneously Digital/Analog Operation:
  • For input, digital/analog autodetection
  • For output, digital and analog simultaneous
  • Webcasting: Can provide a TCP stream to a SHOUTcast or other Webcasting server
  • Backup: Configurable for automatic backup to secondary incoming audio stream, playout of audio from USB drive, or playout of audio from a local device connected to the rear panel inputs
  • Aux Data Channel: RS-232, in- or out-of-band data transport programmable between: 2400, 4800 and 9600 bp/s

Contact Closures:

  • 8 opto-isolated contact closures in each direction, with time-alignment to audio Inputs can transport state to peer or put a stream in or out of service
  • Outputs can receive state from peer or be tied to system alarms
  • Hardware Redundancy: N+1 with integrated support of external switching equipment


  • IP Link 100: XLR for analog L&R and digital AES/EBU inputs and outputs
  • RS-232 data: DB-9
  • Contact Closures: HD-26
  • USB
  • Audio headphone jack
  • Accepted Audio Sampling Rates: Accepts any AES/EBU sample rate between 32 and 48 kS/s
  • Audio Sample Resolution: Selectable 16 or 24 bit
  • Sample Rate Conversion: Automatic rate conversion at input to any other AES/EBU sample rate between 16 and 48 kS/s
  • Input/Output Impedance: Balanced, 110 ohms ±20%

AES Transparent Transport:

Analog Audio:

  • Input Impedance: Balanced, greater than 10 k ohms
  • Output Impedance: Balanced, less than 52 ohms


  • Ethernet Data Rate: 10/100Base-T (10 or 100 Mb/s) Full duplex Auto-negotiation with network
  • Network Connections: 2 WAN ports plus separate management Per port 802.1 pq configuration
  • Network Protocols: IPV4, TCP, UDP, RTP, RTCP, SIP, HTTP, FTP Telnet, NTP, SNMPv2C, ARP, ICMP, Ultravox (v1, v2)

Remote Management:

  • Web browser interface
  • SNMP

RTP Streams:

  • Total of 12 streams
  • Setup: Static or SIP
  • Unicast, multiunicast, multicast
  • Standard RFC payload formats Auto configuration
  • Source IP address and UDP port verification at the receiver for security
  • TCP Streams: Total 12 HTTP streams to feed SHOUTcast or Icecast servers with selectable codec and coding rate for each stream


  • Compliant with EBU N/ACIP Tech 3326
  • Works in peer to peer and proxy mode
  • NAT Traversal support
  • Redundancy: Automatic failover mode for primary and secondary incoming streams
  • Dynamic Stream Splicing: Optional: Enables redundant streams to be received across one or more networks
  • Jitter Buffer: Programmable jitter buffer depth to 1024 packets (provides up to several seconds of network jitter compensation)
  • Forward Error Correction: Multiple levels of 1 and 2 dimensional FEC schemes Configured per stream from 25%, 50%, 66% and 100% overhead
  • Time Diversity: Time delay configured on per stream basis, used with redundant streams for burst packet loss protection
  • Interleaving: Matrix configured per stream used to prevent consecutive packet losses
  • Packet Loss Concealment: Automatically performed by the system
  • Test Tone Generator: 1004 Hz test tone at -12 dBFS Equivalent to +8 dBm input
  • Loopbacks: Received stream loopback equipment loopback

Network Performance Statistics Tracked:

  • Burst packet loss statistics based on RFC 3611
  • Per stream and group statistics for packets received, packet lost, packets recovered by FEC and packets sent
  • Sent and received total stream bandwidth
  • LED Indicators: Link activity, link status
  • IP Link 100: Multi-color LED indicators for L&R audio input and output

Alarm Reporting:

  • Major/minor alarms, normally open relay contacts, SNMP traps
  • Maintains internal and sysLog messages alarm
  • Log files can be sent off to off-site server for storage
  • User configurable per-stream packet loss threshold
  • Loss-of-AudioAlarm: Built-in silence detection with ability to provide alarm and perform switch over of stream on loss of audio
  • Dimensions (H X W X D): 1RU: 1.75 x 19 x 14.25 in. (4.45 x 48.3 x 36.2 cm)
  • EIA rack mountable Weight: 5 lbs (2.27 kg) typical

Power Supply Main:

  • Universal AC, 50/60 Hz
  • Backup: Optional external module, universal AC to 12 VDC converter
  • Power Consumption: 20 watts or less
  • Fuse Protection: 2A AC input fuse
  • Cooling: Convection cooled
  • Humidity: To 95% non-condensing
  • Operating Temperature: 32º to 122º F (0º to 50º C) Compliance Regulatory Compliance CE, FCC Part 15 Class A, UL 60950, RoHS