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Intraplex® STL HD

T1 STL System

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OVERVIEW

Whether you’re looking for simple one-way audio transport or multichannel FM plus HD Radio™, control data, or off-premises extension telephones, there’s an Intraplex® STL HD package that’s right for you.

STL HD is a modular family of products designed to let you customize your T1 STL with exactly the features and circuits you require. The system transports crystal-clear digital audio over any distance or terrain, and can be used on all types of T1 links, including leased telco T1 circuits, microwave, spread spectrum radio and fiber optic. STL HD systems can be equipped to carry one-way or full-duplex stereo audio, with or without compression. STL HD also provides a wide range of data interface options and supports a variety of telephone, intercom, and other voice-grade applications.

Main Features of Intraplex® STL HD

  • Intraplex T1 technology 
    Building on 20+ years of experience, STL HD is the latest generation of Intraplex, continuing the tradition of unsurpassed reliability and state-of-the-art technology, while maintaining compatibility with earlier generations of Intraplex T1 systems. Hot-standby redundant power supplies and advanced T1 error mitigation techniques provide enhanced transmission robustness, making STL HD a system you can rely on for years to come.
  • Audio transport 
    With STL HD, uncompressed audio occupies about three-fourths of the T1, leaving room for additional traffic in each direction. A wide selection of compression options, including Enhanced apt-X®, MPEG-2, MPEG-3, J.41, and G.722, allows the carrying of multiple audio channels on a single T1. Audio I/O is either analog or AES/EBU digital, while sample rates ranging from 16 kS/s to 48 kS/s provide for audio bandwidth options from 7 kHz up to 20 kHz and beyond.
  • Telephone links 
    A full range of telephone interface options allows the STL HD to support a variety of telephone and other voice-grade audio applications, including 2-wire and 4-wire E&M for linking PBXs and KSUs, Off-Premises Extension (OPX) circuits that allow you to connect a telephone handset at the transmitter site to a PBX at the studio as if it were in the next room, and open 4-wire circuits to support talkback and intercom systems with both standard (3.4 kHz) and wideband (7 kHz) voice quality, as well as FSK tones for use with telephone keypad-operated remote controls.
  • Data circuits 
    The industry’s most extensive array of data interface options allows you to set aside part of your T1 STL to create a LAN bridge, carry HD Radio data traffic in either I2E or E2X format, and link to virtually any type of control and data storage equipment. Available synchronous and asynchronous interfaces include RS-232, RS-449, V.35, X.21, TCP/ IP, UDP, TTL and more.
  • AudioLink Plus™ 
    AudioLink Plus™ is a family of E1 audio multiplexers that offers all the same features as STL HD does for T1. If you are planning to use microwave radios to establish your STL, consider using E1 instead of T1. Most telecoms radios that can carry T1 can also be configured to carry E1, and you get one-third more carrying capacity at the same price.

Main Features of Intraplex® STL HD

  • Intraplex T1 technology 
    Building on 20+ years of experience, STL HD is the latest generation of Intraplex, continuing the tradition of unsurpassed reliability and state-of-the-art technology, while maintaining compatibility with earlier generations of Intraplex T1 systems. Hot-standby redundant power supplies and advanced T1 error mitigation techniques provide enhanced transmission

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