The emergence of AoIP technology provides a new feasible solution for remote high fidelity signal transmission through IP streams using wide area network dedicated lines. The AT100 is the transmission equipment developed for this demand, based on the SDH network for MSTP transmission, which has the characteristics of high isolation, strong flexibility, and QoS guarantee. It meets the requirements of 24bit/48K, multi-channel, bidirectional, low delay broadcast level audio transmission, and can complete the co link simultaneous interpreting transmission of audio stream and management data, which is suitable for transmission scenarios with high requirements for audio quality.
Basic Performance
Wide Area Network Dedicated Line Type: PTN/MSTP
Number of access channels: 4 channels per AoIP stream, 2 streams in each direction
Interface card type: Two replaceable card slots, compatible with digital or analog interface cards
Analog card: 2 balanced line inputs, 2 balanced line outputs, XLR interface
Digital card: 2 AES/EBU (4ch) inputs, 2 AES/EBU (4ch) outputs
Transmission quality: 48KHz, 16bit/24bit/32bit lossless uncompressed
Synchronization method: IEEE1588v2 (PTP), Beidou/GPS, adaptive synchronization
RTP transmission method: unicast/multicast
Audio packet format: GY/T 304-2016 (AES67), default packet time of 1ms
Network Management: GY/T 322-2019 (AES70)
Auxiliary interface: 4GPI+4GPO/WordClock input/output/RS232
Chassis size: 483 × 350 × 178 (standard 1U height)
Power supply and power consumption: Dual power supply (AC 85~245V/45-65Hz, overall power consumption 30W)
technical indicators
Clock synchronization accuracy: better than 1 μ s (usually ± 100-200ns)
Receive cache time: 50-600ms can be preset
Synchronization establishment time:<5 seconds
Audio dynamics: 135dB (digital) @ 24bit; 110dB (analog) @ 24bit
Jitter:<0.01UI
Minimum baseband level: 200mVp-p
Simulated maximum level:+24dBu
Simulated frequency response: ± 0.2dB (20Hz-20KHz)
Simulation distortion:<0.01% @+4dBu
Simulated noise:<-88dBu (A-D); < -84dBu（D-A）
Simulate crosstalk:< -100dB@1KH
