Overview
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 enables transport of multiple channels of mono or stereo audio across the Public Internet or any QoS-enabled IP network, including T1 and T3 connections and private WANs with MPLS. The Gateway 4 supports AES67, ST 2110-30, RAVENNA, NMOS, Ember+, AES3 and analog I/O as standard. The Gateway 4 streams AES67, ST 2110-30 and RAVENNA compliant digital audio between equipment from vendors supporting these standards. Plus, an optional WheatNet-IP card can be purchased. The codec supports interoperability with proprietary Dante® and Livewire+™ protocols in AES67 compatibility mode. 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.
Livewire+
Native support lets you connect directly to Livewire+ AES67 networks and exchange audio streams
Specifications
RJ45 Analog Inputs 1-4/AES3 Inputs 1-4: Shared analog stereo line inputs 1-4, or stereo AES3 digital inputs 1-4
RJ45 Analog Outputs 1-4/AES3 Outputs 1-4: Shared analog stereo line outputs 1-4, or stereo AES3 digital outputs 1-4
Female DB-25 Analog/AES I/O: Optional analog or digital inputs/outputs x 4 (Tascam pinout)
Gigabit LAN Ports: 2 x Gbit Ethernet ports for IP streaming over WANs (4 bidirectional mono, bidrectional stereo plus mono, or 2 bidirectional stereo streams)
Gigabit AoIP Streaming Ports: 2 x Gbit Ethernet ports for AES67/ ST 2110-30/ ST 2022-7[2] or Optional WheatNet-IP streaming over AoIP1 (4 bidirectional mono or 2 bidirectional stereo)
USB 2.0 Host Port: Front panel host port (supports firmware upgrades, Wi-Fi USB modems[2] and memory sticks)
USB 3.0 Host Port: Rear panel host port supports record and playback[2]
Front Panel Headphone Output: 1 x 6.35mm (1/4”) headphone Jack
Front Panel SD Card Slot: Full size push-push SD card slot for firmware upgrades [2]
Internal SSD Storage Capability: Internal connector supports SSD memory after purchase
BNC Sync Input/Output: 2 configurable input/output BNC sync connectors (Wordclock, AES3 Input, AES11id, PTP Sample Clock, and Fixed)
Female DB-25 Control Port In/Out: Dual DB-25 Control panel support 8 CMOS control inputs and 8 opto-isolated solid-state relay outputs
Analog Input Impedance: > 10k ohm
Analog Output Impedance: < 30 ohm balanced
Clipping Level: Nominal output level +4dBu with maximum output + 24 dBu
A/D & D/A Converters: 24 bit
AES3 (AES/EBU): 24 bit inputs with support for sample rates from 32kHz to 192 kHz[2]; 24 bit outputs
Frequency Response: 20Hz to 22kHz
Total Harmonic Distortion: <0.002% at +22dBu unweighted
Signal to Noise Ratio: >100dB at +24dBu, unweighted, 20Hz – 20kHz
Crosstalk: < -95dB between adjacent channels
Encoding Formats: 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, MPEG audio technologies licensed by Fraunhofer IIS (http://www.iis.fraunhofer.de/audio)
Uncompressed IP: Linear PCM16/24 bit 32kHz, 44.1kHz, 48kHz, 96kHz sampling
IP Sample Frequencies: 8kHz, 16kHz, 32kHz, 44.1kHz, 48kHz, 96kHz
Phase-locked Surround Sound Channels: Stream 4 digital channels in phase-locked mode to deliver live surround sound content
Asymetric encoding: Supports asymetric multi-format encoding
Protocols: RTP, DHCP, SNMP, DNS, HTTP, IGMP, IPv4/IPv6, RTCP, STUN, SSL Security Certificate
SmartStream PLUS: Primary plus 3 redundant streams supported (algorithm dependant) Note: only 1 redundant stream available using TieLink[2]
Multi-unicasting: Support for 1 or 2 Multi-unicast streams (20 connections in total)
Multicasting: Support for 1 or 2 Multicast streams to unlimited endpoints over compatible IP networks
