TELOS TWOX12 USER’S MANUAL
INTRODUCTION
CHAPTER 1 1
1 INTRODUCTION
1.1 System overview- What is this TWOx12 Anyway?
The Telos TWOx12 is designed for small and medium market stations where up to
12 incoming talk lines are required. It is also well suited to dedicated studios within
larger facilities. Depending on the version ordered, the TWOx12 can utilize 6 ISDN
BRI circuits (with 2 channels or “Lines” per circuit) or 12 “POTS” (plain old
telephone service) analog lines, or certain mixtures of the two types. We recommend
ISDN BRI circuits whenever possible. Contrary to the perceptions of some, ISDN is
widely available and installation generally goes smoothly (this was not always true;
however our extensive experience with the Zephyr and ZephyrExpress codecs have
proven to us that this technology is mature). Follow the advice in this manual about
ordering ISDN and the process should go smoothly (see the Appendix for ISDN
Order forms).
For those who do not need the added quality available on ISDN, or cannot get ISDN
lines, we offer the POTS version for use on analog telephone lines. This version
offers the only available upgrade path from Analog to ISDN in any broadcast
telephone system today. You can get the flexibility of the system now. ISDN or
POTS, you can make the choice today without throwing away your investment
tomorrow- simply plug in new interface cards to upgrade from POTS to ISDN!
At the heart of any broadcast system are the hybrids used. Based on the Telos TWO
dual hybrid, the TWOx12 includes simply the best broadcast hybrids made. With a
trans-hybrid loss of well over 70dB (when used on digital lines) it allows for the best
possible announcer audio over the air. Performance when used with open speakers
and in teleconferencing applications is also superb.
The TWOx12 combines the TWO’s dual hybrid design with a twelve line system
controller and support for up to two (expandable to four) Telos Desktop Director
control surfaces - typically one for a phone screener and one for talent. Each Desktop
Director can be easily reconfigured between the talent and producer (screener) modes
of operation. The Desktop Director has an intuitive user interface and we are
confident your staff will take to the system in no time.
If it sounds like we are proud of this system, you are right!
1.2
1.21.2
1.2 Features and Benefits of the TWOx12 System
Telos products have earned a reputation for ease of use and outstanding performance,
and the Telos TWOx12 lives up to that reputation. Our advanced ISDN hybrid
technology comprises an integrated suite of audio processing functions to achieve
unsurpassed audio quality.
!
Studio-grade 20-bit A-to-D conversion, combined with noise gating and shaping,
guarantees crystalline audio to the POTS lines and significantly improved send
levels.
!
Simultaneous analog and AES/EBU outputs.
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