The APT MULTI-CHANNEL CODEC can transport multiple channels of audio over T1 or E1 links. In its 1U Frame, it can accommodate up to 3 slimline audio cards delivering simplex/duplex and analog/digital audio via a universal 37-way D-type connector.
Based on a rock-solid DSP-based architecture designed for round-the-clock operation, this modular unit offers hot-swappable cards for uninterrupted audio, redundant power supplies and exceptional audio quality with linear, aptX® Enhanced and many other coding schemes.
The MCU module controls the operation of all other modules in the system, allocating them time slots on the backplane and sending configuration information. It enables:
The T1/E1 module is one of the most common choices for audio transport due to the reliability and widespread availability of T1 and E1 circuits.
Key advantages include:
The slimline universal audio module for the APT E1/T1 MULTI-CHANNEL CODEC offers a 37-way D Type connection. Four physical slots on the 1U chassis allow the population of up to three payload modules (Audio or Aux) and one T1/E1 transport card.
This results in 12 simplex and 6 duplex channels. Each module offers four audio channels which can be either four encode, four decode or two encode and two decode.
Offering a high level of flexibility and channel density, the universal audio card can provide either dual stereo or quad mono channels in simplex mode. Individual channels can be enabled and disabled or routed to different destinations. For example, on a T1/E1 link, stereo A can go to the main T1/E1 link and stereo B on the secondary, the drop and insert circuit.
The E1 module is available with both RJ45 and BNC connectors.
With a modular, single-platform approach, multiple layers of redundancy and exceptional scalability and flexibility, the APT E1/T1 MULTI-CHANNEL CODEC is the perfect solution for Studio-Transmitter Links, Studio-Studio Links, Remote broadcast, backhaul and studio linking applications.
«It’s been my experience that the audio quality of devices built by APT is unsurpassed, and the multi-channel codec is no different. It’s a real pleasure to listen to. The unit is built extremely well, and I have the utmost confidence in it.»
Doug Irwin CPBE, DRB, AMD, RF Engineer /Project Manager, iHeartMedia, Los Angeles & Technical Editor, Radio Magazine, USA