Intraplex® Ascent Media Gateway

High-Performance IP STL System for Video and Audio Distribution

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OVERVIEW

Built on the proven, award-winning Intraplex® IP Link codec technology, GatesAir’s Intraplex Ascent Media Gateway platform supports reliable and secure Cloud-enabled distribution of TV and radio programming with high-end features.

The Ascent Media Gateway is ideal for applications that require real-time distribution of UDP-based media over IP-based WANs or Microwave. This includes video programs for TV broadcast, and distribution of audio or FM/MPX signals to a large number of radio transmitter sites. This high-density solution reduces cost and provides a path for convergence of IT and broadcast infrastructure.

Product Details

The Ascent platform continues the Intraplex tradition of reliable distribution with the Media Gateway over IP application. The platform provides a scalable, cloud-enabled solution for the distribution of video and audio signals with enhanced reliability and security with SRT (Secure Reliable Transport) protocol and Intraplex StreamSplicing®.

SRT is an open-source protocol that provides low-latency, reliable and secure streaming of video and audio data. The added capability of StreamSplicing over SRT provides enhanced reliability and security over multiple diverse networks. For uni-directional unicast network (i.e. STL Microwave), the reliability is accomplished using SMPTE-2022-2 and SMPTE 2022-7 “hitless” packet protection using FEC and a dual-WAN-networks scheme.

When using SRT on full-duplex links, the packet loss protection is provided using a built-in, real-time re-transmission scheme, added via Intraplex StreamSplicing technology with diverse WAN links. The security of the content is handled by the built-in AES-128/256 payload encryption.

Ascent is built on Commercial-Off- The-Shelf (COTS) x86 architecture to leverage the scalability and cost of the technology. It is available as a 1RU (single PSU) or 2RU (dual PSU, FANs) branded hardware server and as a software-only option.

Main Features of Intraplex® Ascent Media Gateway

The system supports any constant rate UDP over IP media. Tested with ATSC1 and ATSC3 for video, and AES3 and FM/MPX signals for audio.
Supports point-to-point and point-to-multipoint with content replication at the receiver to feed up to 3 local destinations
Protocol Encapsulation: Real-time Transport Protocol (RTP); Secure Reliable Transport (SRT)
Streams: Multicast, unicast, and multi-unicast
Capacity
- Supports up to 50 Mbps of source rate per stream
- Total capacity of 250 Mbps per server
- Number of streams per server: scalable up to 100 with the limitation of maximum capacity
Server Specification
- Intel i7, 4-core, 8 GB memory, 32 GB SSD
- 3 Network Ports
- OS: Ubuntu version 16.04
- Available with single or dual power supplies
Management
- HTTP and HTTPs
- Built-in access control (Firewalling) on each network port for security
Web and SNMP for management
Multiple web account types to restrict access
Network reliability
- Dynamic Stream Splicing with network and time diversity for “hitless” packet loss protection
- Programmable RTP-level Forward Error Correction (FEC)
- Secure Reliable Transport (SRT): new protocol provides automatic packet retransmission method
IP Security
- Access control per interface
- Encryption of streams with AES 128/256

Main Features of Intraplex® Ascent Media Gateway

The system supports any constant rate UDP over IP media. Tested with ATSC1 and ATSC3 for video, and AES3 and FM/MPX signals for audio.
Supports point-to-point and point-to-multipoint with content replication at the receiver to feed up to 3 local destinations
Protocol Encapsulation: Real-time Transport Protocol (RTP); Secure Reliable Transport (SRT)
Streams: Multicast, unicast, and

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