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SKU: INT-IXIPL100m Categories: ,




The Intraplex® IP Link MPX transparently transports your FM MPX composite signal over IP networks Offering flexible sampling rates and sample sizes options for digitizing the analog FM MPX composite signal, the IP Link MPX codec optimizes IP network bandwidth utilization based on FM services being transported. IP Link MPX codecs are suitable for use in IP based Studio to Transmitter Links (STLs) as well as 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 MPX system can provide a level of reliability not seen in comparably-priced codecs. As the latest addition to the Intraplex family of audio and data transport products, the IP Link MPX codec bring legendary Intraplex reliability to the IP codec market.




  • Single bidirectional FM MPX composite signal
  • Redundant input MPX signal ports with automatic failover based on signal activity
  • Redundant output MPX signal ports
  • Independent signal level setting for each input and output MPX signal port
  • Flexible sampling rates and sample size options to tailor IP WAN bandwidth
  • Two channels of SCA mixing
  • Three independent IP interfaces for redundant network operation
  • Optional redundant power supply: 12VDC or 48VDC
  • VU meters to indicate input and output MPX signal levels
  • GPS support for precision digital timing reference
  • Decoding of L and R audio and RDS data from input or output MPX signal. Audio is output on XLR connectors and front headphone jack
  • Built-in silence sensor with optional stream switch over
  • Optional Dynamic Stream Splicing with time and network diversity provides “hitless” packet loss and network loss protection
  • Prioritized stream sources at the output with automatic switch over and switch back between primary and secondary
  • 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
  • Integrated with Intraplex LiveLook (network analytics and monitoring software)
  • N+1 redundancy with integrated control of external switching equipment
  • SynchroCast™ option provides dynamically managed precision delay for Single Frequency Network (SFN) broadcasting and simulcasting
  • Support for IP multicast and multiunicast
  • Web browser user interface and SNMP network management
  • Eight multipurpose contact closure inputs and outputs provide transport of logic signals with time-alignment to MPX signal, stream control and alarm notification.



  • One FM MPX composite signal encode and decode
  • Two input and two output MPX signal ports for redundancy
  • Front Display: Graphical front panel user interface - 3.2 inch display; 256 x 64 pixel, white monochrome OLED; six-button keypad; VU meters for each MPX signal port
  • SynchroCast: Optional: MPX delay programmable up to 1 second with 1 microsecond accuracy
  • Backup: Configurable for automatic backup to secondary incoming MPX stream

Contact Closures:

  • Eight input and eight output opto-isolated contact closures, with time-alignment to MPX streaming
  • Contact inputs can transport state to peer or control stream state
  • Contact outputs can receive state from peer or be tied to system alarms
  • Hardware Redundancy: N+1 with integrated support of external switching equipment


Rear panel:

  • Ethernet: Three 10/100 Base-T, RJ-45
  • MPX: Two BNC for MPX inputs and two BNC for MPX outputs
  • SCA: Two BNC for SCA inputs (All BNC connectors are 75 ohms, unbalanced)
  • Two XLR for analog L and R audio
  • Contact Closures: D-sub, 26-pin female USB: Type A
  • DC Power: Two pin screw terminal AC Power: C14 power inlet

Front panel:

  • Ethernet: 10/100 Base-T, RJ-45
  • Audio Headphone: ¼” stereo headphone jack


  • External GPS: 10 MHz and 1 PPS BNC connectors
  • Optional: GPS receiver plug-in board kit with SMA connector for external GPS antenna (provided with kit)
  • Analog Bandwidth: 60, 74, or 99 kHz

Frequency Response:

  • 60 kHz bandwidth: 0.1 Hz to 60 kHz, -1 dB
  • 74 kHz bandwidth: 0.1 Hz to 74 kHz, -1 dB
  • 99 kHz bandwidth: 0.1 Hz to 100 kHz, -1 dB
  • All bandwidths: 20 Hz to 53 kHz +/- 0.05 dB
  • Total Distortion: (THD+N) Less than 0.003%
  • Dynamic Range: Greater than 90 dB
  • Signal Level: Full scale analog MPX input/output: -6 to 18 dBu, user-settable in 0.5 dBu steps
  • Sampling Rate: 132, 162, or 216 ksps
  • Sample Size: 16, 20, or 24 bit
  • Input Impedance: Greater than 10 k ohms, jumper settable to 75 ohms
  • Output Impedance: Less than 10 ohms, jumper settable to 75 ohms


  • Channels: Two BNC inputs for SCA with 600 ohms impedance

Injection Level Control:

  • SCA mixing into MPX composite output. Gain from each SCA input to each MPX output is user settable from 20 to -64 dB in 0.5 dB steps. Maximum injection level is 3 dBu
  • SCA mixing can be independently enabled for each SCA input to each MPX output



  • Demodulation of L and R stereo audio from either MPX signal input or output
  • Full scale audio output level: 9 to 24 dBu, user settable in 1 dB steps
  • Output: XLR balanced, less than 50 ohms impedance
  • RDS: RDS decoding from either MPX signal input or output of PI, PS, TA, TP, PTY, RT, and CT data


  • Ethernet Data Rate 10/100Base-T (10 or 100 Mbps) full duplex, auto-negotiation

Network Connections:

  • Two WAN ports plus management port. Mirror port on front panel
  • Per port 802.1 pq configuration; Three network ports available for both streaming and management
  • Network Protocols IPV4, TCP, UDP, RTP, RTCP, HTTP, FTP Telnet, NTP, SNMPv2C, ARP, and ICMP

Remote Management:

  • Web browser interface
  • SNMP

RTP Streams:

  • Total of six streams: Unicast, multi unicast, and multicast
  • Source IP address and UDP port verification at the receiver for security
  • Redundancy: Automatic failover mode between Primary, Secondary and Backup streams
  • Dynamic Stream Splicing: Optional: Enables multiple identical MPX streams to be sent across the IP network (or two separate IP paths, if available) and provides for hitless switching at the decoder
  • Jitter Buffer: Programmable jitter buffer depth up to 1024 packets. Static or automatic jitter buffer adjustment
  • Forward Error Correction: Multiple FEC schemes configured per stream with 25%, 50%, 66% and 100% overhead selection
  • Time Diversity: Time delay configured on per stream basis, used with redundant streams for burst packet loss protection
  • Interleaving: Configured per stream for mitigation of consecutive packet losses


  • Test Tone Generator: 1 kHz test tone at -12 dBFS
  • Loopbacks: MPX input to output equipment loopback while simultaneously sending streams from the input MPX signal port

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
  • Send and receive stream bandwidth

Status Indicators:
LED Indicators:

  • Stream activity and status
  • Multi-LED bar graph signal level VU meters for MPX input and output signals

Alarm Reporting:

  • Major/minor alarms, normally open relay contacts, SNMP traps
  • Maintains internal and syslog messages alarm log
  • Log files can be sent off to off-site server for storage
  • User configurable per-stream packet loss threshold
  • Loss-of-Signal-Alarm: Built-in silence detection with ability to provide alarm and perform switch over of stream on loss of MPX signal

Mechanical and Environmental:

  • Dimensions (H X W X D): 1RU: 1.75 x 19 x 10.1 in. (4.45 x 48.3 x 25.7 cm)
  • EIA rack mountable Weight: 5 lbs (2.27 kg) typical

Power Supply:

  • Main: AC 100-240 VAC, 50/60 Hz with type T2A 250 V AC input fuse
  • Backup: Optional external module, AC to 12 VDC converter or internal module for -48 VDC
  • Power Consumption: 15 watts
  • Humidity: 10% to 90% non-condensing
  • Operating Temperature: 32º to 122º F (0º to 50º C)


  • Regulatory Compliance: CE, FCC Part 15 Class A, UL 60950, RoHS