The Future Is Calling. (It’S for You.)
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TELOS Hx1/Hx2 Digital Hybrid Telephone Interface
TELOS Hx1/Hx2 Digital Hybrid Telephone Interface USER’S MANUAL Manual Version 1.4c for software version 1.4 or later 7 June, 2011 Telos Hx1 and Hx2 Manual © 2010 TLS Corporation. Published by Telos Systems/TLS Corporation. All rights reserved. Trademarks Telos Systems, the Telos logo and Hx1 and Hx2 are trademarks of TLS Corporation. All other trademarks are the property of their respective holders. Notice All versions, claims of compatibility, trademarks, etc. of hardware and software products not made by Telos mentioned in this manual or accompanying material are informational only. Telos Systems makes no endorsement of any particular product for any purpose, nor claims any responsibility for op- eration or accuracy. We reserve the right to make improvements or changes in the products described in this manual which may affect the product specifications, or to revise the manual without notice. Warranty This product is covered by a two year limited warranty, the full text of which is included in this manual. Updates The operation of the Hx1 and Hx2 is determined largely by software. We routinely release new versions to add features and fix bugs. Check the Telos web site for the latest. We encourage you to sign-up for the email notification service offered on the site. Feedback We welcome feedback on any aspect of the Telos Hx1 or Hx2, or this manual. In the past, many good ideas from users have made their way into software revisions or new products. Please contact us with your comments. Service You must contact Telos before returning any equipment for factory service. -
Telephone Line Audio Interface Circuits
Telephone line audio interface circuits Copyright 1996-1999 Tomi Engdahl First of all, I must officially advise against connecting anything other to the telephone line than equipment approved for the purpose by the telephone company or some other regulatery body. Telephone company tend to be very strict about unauthorized gear hanging on their lines, and if something does go wrong with your gadget (like putting dangerous voltages to telephone line) you will be in deep trouble. Index • How telephone works • Network Interface in telephone • Telecom hybrid circuits for other equipments than telephones • Audio interfaces to telephone lines • Telephone audio interfaces from Usenet news • Audio interfaces without transformer isolation • Simple telecom hybrid circuits • More details implementing telephone line interface • Problems in linking telephone hybrid to audio system • Helpful tips for telephone hybrid circuit designers • Components for telephone line interfacing • Telephone line technical details • Telephone line details in different countries • Interference in the telephone line signal • Other related document • Final words How telephone works A telephone uses an electric current to convey sound information from your home to that of a friend. When the two of you are talking on the telephone, the telephone company is sending a steady electric current through your telephones. The two telephones, yours and that of your friend, are sharing this steady current. But as you talk into your telephone's microphone, the current that your telephone draws from the telephone company fluctuates up and down. These fluctuations are directly related to the air pressure fluctuations that are the sound of your voice at the microphone. Because the telephones are sharing the total current, any change in the current through your telephone causes a change in the current through your friend's telephone. -
Zephyr Xstream + Xport the Best Way to Hear from There
Zephyr Xstream + Xport The Best Way To Hear From There Introduction In 1993, we had an idea. We envisioned a way to send CD-quality audio over standard digital phone lines by marrying advanced audio coding and digital telephone technologies. The result: the Telos Zephyr, which transformed broadcasting by making ISDN an easy-to-use, trouble free tool for sending and receiving high-quality audio. Broadcasters and audio professionals worldwide have since made Zephyr the most successful digital broadcast product ever. Its name has become synonymous with easy, instantaneous point-to-point audio transfer: “Just Zephyr it to me!” And the Zephyr family has grown — from a single model to a complete studio-to-studio and field audio transmission system. A Zephyr Xstream at your studio becomes a “universal codec.” It can connect with every popular ISDN codec for full-duplex, 20kHz stereo audio, transmit and decode streaming MP3 audio over Ethernet, and even connect with the revolutionary Zephyr Xport portable codec via analog (POTS) telephone lines, so you can simpify your life. You won’t need a proliferation of codecs in your rack, so you save space, operation hassle, phone lines — and money. In the field, Zephyr Xstream and Zephyr Xport are powerful remote tools, perfect for on-location broadcasts, news gathering, interviews and remote studio linkups. New MPEG AAC-LD coding lets you transmit Layer 3-quality audio with greatly reduced transmission delay, enabling smooth, natural, high-quality two-way audio. Zephyr models with built-in mixers and Phantom power help reduce equipment inventory and setup time; intuitive operation and simple user interfaces make operation easy even for non-technical personnel. -
Telos Catalog March 2004.Indd
T i m e l i n e 1984: Steve Church invents Telos 10, world ’s first DSP adaptive telephone hybrid, and first DSP based product for radio broadcasting 1985: Telos Systems founded 1986: Frank Foti designs Vigilante audio processor at WHTZ, New York 1988: NBC uses Telos hybrids to cover Seoul Olympic Games 1988: Cutting Edge founded; Vigilante FM audio processor introduced 1989: Telos ONE Hybrid 1991: Cutting Edge Unity 2000 audio processor 1991: Telos develops multi-line DSP talk systems 1992: Cutting Edge merges with Telos Systems 1992: Telos develops Digital Dynamic Equalization adaptive hybrid EQ 1993: Zephyr fuses MPEG Layer 3 and ISDN technologies 1994: Zephyr wins Radio World “Cool Stuff“ Award 1995: Zephyr NET takes home “BE’s Pick Hit“ Award 1996: Telos introduces MP3 for real-time webcasting 1996: Zephyr used by major broadcasters during Atlanta Olympic Games 1996: Zephyr Express wins BE Radio “Pick Hit“ Award 1997: Cutting Edge debuts Omnia.fm Digital Audio Processor 1998: Omnia.am and Omnia.net 1999: Omnia-3 introduced for FM, AM and Internet processing 1999: Telos Series 2101 and TWOx12 pioneer use of ISDN for talk shows 1999: Omnia ToolVox digital microphone processor 2000: Omnia-6fm premieres; world’s first 96 kHz/24-bit broadcast audio processor 2001: SmartSurface networkable control system shown at NAB 2001: Zephyr Xstream introduces low-delay MPEG AAC-LD coding 2002: Omnia-4.5 audio processor for FM and AM introduced 2002: ProFiler automated program archiving 2002: Omnia.sg wins Radio World Reader’s Choice Award 2002: Zephyr Xport becomes first codec to use advanced aacPlus audio coding 2003: Livewire Audio-Over-Ethernet technology unveiled 2003: Omnia-6EX debuts with simultaneous FM,HD Radio,DAB processing 2003: Omnia/Crown develop Processing Card for Crown Transmitters 2004: Omnia-5EX,world’s first HD Radio processing for AM, debuts 2004: AXIA division of Telos is launched. -
Multi-Line, On-Air Telephone System
TS612 Multi-Line, On-Air Telephone System Installation & Operations Manual Perfect Communication through Technology, Service, and Education.TM TS612 Installation and Operations Manual Gentner Part No. 800-003-000 July 1999 (Rev. 3.0) © Copyright 1999 by Gentner Communications Corporation. All rights reserved. Gentner Communications Corporation reserves specification privileges. Information in this manual is subject to change without notice. This equipment complies with the requirements of the EU guidelines: 89/336/EEC “Electromagnetic Compatibility” 73/23/EEC “Electrical operating material for use within specific voltage limits” Conformity of the equipment with the above guidelines is attested by the CE mark. 98/482/EC “Single terminal connection to the public switched telephone network (PSTN)” Table of Contents Introduction . .3 What’s In This Manual . .4 Sales and Customer Service . .4 Technical Support . .4 Unpacking . .5 Warranty Instructions . .5 Overview . .7 About the TS612 . .7 Off-Air Telephone Use . .7 On-Air Telephone Use . .7 Dedicated Screening Station . .7 About Version 2.5 . .8 Operational Requirements . .9 Telephone Line Requirements . .9 Power Requirements . .9 Equipment Placement . .9 Installation . .11 Telephone Line Setup . .11 Telephone Connections . .11 Line Expansion . .12 Configuring the TS612 . .13 Single-Studio Mixed Caller . .15 Single-Studio Split Caller . .16 Single-Studio Split-Hybrid . .17 Dual-Studio . .18 Equipment Interconnections . .19 Audio Hookup . .19 Record Control Hookup . .21 Aux I/O Hookup . .22 Control Surface Hookup . .24 Calibration . .26 Calibration of Send Audio . .26 Calibration of Caller Audio . .27 Calibration of Hold Audio . .28 Calibration of AGC . .29 TECHNICAL SUPPORT: 1.800.283.5936 (USA) OR 1.801.974.3760 2 Setup and Operation .