Gateway 4

Introducing the New Generation 4 Channel IP Audio Codec

The Gateway 4 is a powerful DSP-based 1RU IP codec designed for live remote broadcasting applications, as well as STL or SSL links. The Gateway 4 supports up to 4 mono or 2 stereo connections across the Public Internet or any QoS-enabled IP network, including T1 and T3 connections and private WANs with MPLS. The Gateway 4 speaks the language of AES67, ST 2110-30, ST 2022-7, RAVENNA, Livewire+, NMOS, Ember+, AES3 and analog I/O as standard. An optional WheatNet-IP or Dante card can also be installed at purchase.

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NAB Show 2021 Product of the year Award

The Gateway 4 won the prestigious NAB Show Product of the year Award 2021

Radio World Best in Market Award Winner

The Gateway 4 won the Radio World Best in Market Award 2021

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The Tieline Gateway 4 is ideal for remote broadcasts, STLs, and Studio-to-Studio Links (SSLs). It offers two stereo connections, or one stereo and two mono connections, or up to 4 mono connections. It natively supports AES67, ST 2110-30, ST 2022-7, RAVENNA and Livewire+, plus NMOS, Ember+, AES3 and analog I/O. It also includes SmartStream PLUS redundant streaming and Fuse-IP data aggregation technologies.

Overview

Gateway 4 delivers best-in-class DSP-based reliability and performance

The new generation Gateway 4 delivers best-in-class DSP-based reliability and performance for mission critical broadcast streaming applications. It is ideal for:

  • Remote broadcast applications.
  • Studio-to-Transmitter Links (STLs)
  • Studio-to-Studio Links (SSLs)

The Gateway 4 is designed for solutions requiring up to 4 audio streaming channels with advanced redundancy features and remote configuration and control. It supports 4 full-duplex audio channels in 1RU and is backward compatible with all Tieline IP codecs. The Gateway 4 provides two stereo connections, or one stereo and two mono connections, or up to 4 mono connections.

Features at a Glance

Analog, AES3

Support for AES67, plus AES3 (AES/EBU)
and analog I/O options.

HTTP Streaming

HTTP Icecast or Shoutcast streaming

SIP and IP Intercoms

SIP EBU Tech 3326, 3368, and EBU Tech 3347

Dual AoIP Ports

Stream AoIP from dual ports

SD card

SD card slot for firmware upgrades, storage and SDIO

Dual USB ports

Dual USB ports support firmware upgrades, storage and Wi-Fi modems.

Dual Internal Power Supplies

Dual power supplies provide backup if one fails

Dual Ethernet Ports

Connect using different Telcos for diversity using SmartStream PLUS redundant streaming

Module Compatible

Module slot for ISDN network compatibility, and for future hardware innovations

Multi-Unicasting

Support for multi-unicasting to up to 20 endpoints

Learn More

Multicasting

Support for multicasting over compatible IP networks to unlimited endpoints

Alarms

Silence Detection, PSU Failure, Lost connection, Temperature, AES Input, AES Reference, SNMP and more

Expanded Backup Options

Multiple levels of power, audio and network redundancy. The codec features dual Gigabit Ethernet ports, dual internal power supplies, automated audio silence detection and IP network backup solutions to ensure you’re always on the air.

Learn More on Backup Options

Phase-locked streaming mode

4 channel phase-locked streaming mode.

AoIP Interfaces

AES67 Ready

Native support out-of-the-box so forget hardware card upgrades, just connect and go!

ST 2110-30 & ST 2022-7

SMPTE ST 2110-30 and ST 2022-7 compliant out-of-the-box

WheatNet-IP

Purchase with an optional WheatNet-IP card for interoperability with WheatNet-IP networks
Note: Optional at time of Purchase

Dante

Purchase with an optional Dante card for interoperability with the Dante networks
Note: Optional at time of Purchase

Livewire+

Native support lets you connect directly to Livewire+ AES67 networks and exchange audio streams.

RAVENNA

Native support for RAVENNA, an open technology for stream discovery and advertisement.

NMOS

AMWA NMOS IS-04 and IS-05 provides discovery, registration, and control for ST 2110 AoIP streaming, delivering a new level of interoperability and control with networked equipment throughout the broadcast plant.

Ember+

The Ember+ control protocol is supported

* Future feature

Optional Upgrades

WheatNet-IP

Purchase with an optional WheatNet-IP card for interoperability with WheatNet-IP networks
Note: Optional at time of Purchase

Dante

Purchase with an optional Dante card for interoperability with Dante networks
Note: Optional at time of Purchase

Optional Internal ISDN Module

Purchase an optional Euro ISDN module for compatibility over ISDN networks.

SmartStream PLUS redundant streaming

Connect multiple IP links to codecs and use SmartStream PLUS to stream simultaneous redundant data streams and deliver seamless redundancy when streaming over IP.

learn more

Bond multiple interfaces with Fuse-IP

Imagine the peace of mind knowing you can bond data links from different Telcos and let Tieline’s Fuse-IP technology automatically manage the data capability of each link!

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Applications

The Gateway 4 is perfect for STL, SSL and audio distribution applications, with support for multicasting and multiple unicasting technologies. It is also perfect for managing multiple incoming remotes at the studio and can simultaneously connect to up to 4 hardware codecs or Report-IT Enterprise smartphone app users.

  • Studio-To-Transmitter Links (STL)
  • Studio-To-Studio Links (SSL)
  • Managing multiple incoming remotes at the studio

Flexible Audio Distribution

The Gateway 4 supports multi-unicasting and multicasting for audio distribution.

  • Multi-unicast mono or stereo to audio to up to 20 endpoints in total.
  • Multicast mono or stereo audio to unlimited endpoints over compatible networks
Gateway-4 multi-unicasting to up to 20 codec endpoints
Gateway-4 Codec Delivers 4 Mono Connections

Multiple Backup Options

The Gateway 4 has multiple levels of power, audio and network redundancy. The codec features dual Gigabit Ethernet ports, dual AoIP ports, dual internal power supplies, automated audio silence detection and IP network backup solutions to ensure you’re always on the air.

Automated network failure detection provides auto switching to a backup IP connection. The codec can automatically switch between 4 backup audio sources to maintain program output at transmitter sites. It is also possible to fail over to ISDN using an optional ISDN module. IP fail over options include:

  • Connection audio.
  • Icecast streaming client.
  • Audio file backup.
  • Hardware bypass of audio inputs to outputs if power fails.
Gateway-4 codec connects with backup IP and ISDN connections

Specifications

General

  • Dimensions: 19” x 1 3/4” x 11 13/16” [482mm (W) x 44.45mm (H) x 300mm (D)] excluding rear connectors
  • Weight: 4 Kg /8 lb 13.100 oz
  • Power: Dual AC 90-240V IEC power inlets; 2A 50-60 Hz
  • Operating temp: 0°C to 45°C (32°F to 113°F)
  • 10% ≥ RH ≤ 90% (0 to 45°C/32°F to 113°F), non-condensing

Algorithms

  • IP Algorithms: Tieline Music, Tieline MusicPLUS, Opus, G.711, G.722, MPEG Layer 2, MPEG Layer-3 LC-AAC, HE-AAC, HE-AACv.2, AAC-LD, AAC-ELD, 16/24 bit aptX® Enhanced algorithm
  • IP (uncompressed): Linear PCM16/24 bit 32kHz, 44.1kHz, 48kHz, 96kHz sampling

audio

  • Robust dual DSP-based architecture designed for rock solid, mission critical STL audio
  • Linear PCM16/24 bit 32kHz, 44.1kHz, 48kHz, 96kHz sampling
  • Up to 4 bidirectional mono streams, bidirectional stereo plus mono, or 2 bidirectional stereo streams
  • Multicasting an audio stream to a maximum of 20 multi-unicast audio streams
  • Streaming in multicast server mode to unlimited endpoints over compatible IP networks.
  • Popular algorithms including LC-AAC, HE-AAC v1 and v2, AAC-LD, AAC-ELDv1 and v2, Opus, MPEG II, MPEG Layer-3, Tieline Music and MusicPLUS, G.722 and G.711.
  • Low-delay, cascade resilient aptX® Enhanced algorithm
  • Optional WheatNet-IP card
  • Up to 2 stereo or 4 mono WheatNet-IP audio channels in/out.
  • Optional Dante card supports Dante stream management and discovery​
  • Input Processing: EQ and dynamic range compressor on all inputs

connectivity

  • Dual Gigabit (10/100/1000) Ethernet ports support automatic switching for redundancy
  • Dual AoIP ports for AES67, SMPTE ST 2110-30, ST 2022-7, Livewire+, RAVENNA, WheatNet-IP and Dante AoIP streaming
  • Connect over Wi-Fi using USB Wi-Fi dongles*
  • Optional Gateway Euro ISDN module for connectivity over ISDN networks. Supports 2 B-channels
  • Automated failover to backup connections.
  • Support for up to 4 output audio source fail over options
  • SmartStream PLUS dual redundant IP streaming
  • Fuse-IP network bonding (data aggregation)
  • SIP (SDP) compliant with EBU N/ACIP Tech 3326 and 3368 for interoperability with other codecs
  • I3P EBU Tech 3347 integration for Intercom compatibility over IP
  • Deterministic SIP answering and call routing: Configure up to 16 SIP accounts and connect up to 2 SIP interfaces
  • Selectable fixed or automatic jitter buffer: 5 automated settings available to manage network connectivity and avoid dropouts (includes configurable min and max buffer settings).
  • Configurable Forward Error Correction (FEC)
  • Highly advanced error concealment strategies
  • Real-time IP connection packet statistics
  • Real-time IP link quality displayed.
  • Support for Line Hunt dialing/answering and caller IDs using Tieline IP

operation

  • Full hardware front panel interface including navigation, LCD display, PPM meters and dialing key pad
  • User-friendly HTML5 Toolbox Web-GUI enables codec configuration and control remotely over WANs
  • AES67 Web-GUI for configuration of AES67, ST 2110-30, ST 2022-7, Livewire+ and RAVENNA streams over an AES67 LAN
  • HTTP Icecast or Shoutcast streaming
  • Toolbox Scheduler supports loading/unloading, connecting and disconnecting programs
  • Use the Cloud Codec Controller to configure & manage your entire codec network remotely
  • Auto switching, dual internal AC power supplies
  • IPv4 & IPv6 compatible and ready
  • Asymmetric algorithmic encode/decode
  • Integrated alarm management including automatic silence detection
  • Low latency in-band RS-232 aux data channel
  • Configurable software rules engine via web-GUI for Control Port (8 GPIOs), plus WheatNet-IP LIO compatibility.
  • Upgrade firmware from SD card or USB sticks*
  • Backup and restore configuration via USB sticks
  • Automated firmware upgrade notifications via Web-GUI
  • Support for multiple languages: English, Spanish, Portuguese and French*
  • Backward compatible with all Tieline IP codecs

security

  • User name and password protection of codec and Toolbox HTML5 Web-GUI
  • Support for SSL Security Certificate installation
  • SIP allow lists and deny lists allow filtering of SIP URIs and User Agents.
  • Configuration of non-standard ports
  • Firewall settings to enable or disable a range of firewall-related network services, or limit ping to only work in a local subnet
  • Implementation of CSRF protection (Cross-Site Request Forgery)
  • Cloud Codec Controller supports admin and user level access to codecs with password protection

* Denotes future release

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