Introduction, Welcome to the Nx12, Features & Benefits | Telos NX12

1

1 Introduction

Welcome to the Nx12

The Telos Nx12 combines a 12-line selector and 4 hybrids with advanced signal processing to deliver all you need for your on-air phones. The four hybrids make it ideal for programming where multiple callers are aired simultaneously. It also has the flexibility to serve two studios with two hybrids for each.

At the heart of any broadcast telephone system are the hybrids and associated signal processing. Based on the latest Telos technology, the Nx12 includes the very best broadcast hybrids avail- able.

Depending on the version ordered, the Nx12 can use six ISDN (Integrated Services Digital Network) BRI circuits (with 2 channels per circuit) or 12 analog lines, or a 50/50 mixture of the two types.

The Nx12 has support for up to eight Telos third-generation control surfaces such as our Call Controller and Desktop Director. It also supports control via IP/Ethernet.

Studio equipment can connect with analog, AES3, or Livewire IP audio.

Features & Benefits

Telos products have earned a reputation for ease of use and outstanding performance, and the Nx12 lives up to that reputation. It integrates a suite of audio processing functions to achieve unsurpassed audio quality. Its features include:

♦♦ Excellent send-to-receive isolation using the latest generation of Telos’ field-tested Adap- tive Cancellation technology. Each hybrid automatically and continuously adjusts to phone line conditions, eliminating the hollowness, feedback and distortion that occur when send audio “leaks” into the caller output signal.

♦♦ Sophisticated AGC/limiting functions and three-band Digital Dynamic Equalization (DDEQ) ensure controlled caller audio levels and spectral consistency.

♦♦ Four high-perfomance adaptive digital hybrids.

♦♦ Studio-grade 20-bit audio conversion, combined with noise gating and shaping, extracts the best possible audio quality from real-world telephone lines.

♦♦ High-precision sample rate conversion for ISDN circuits. ♦♦ Full metering for setup and operation.

♦♦ Adjustable Caller Ducking (override).

Image 11

Telos NX12 user manual Introduction, Welcome to the Nx12, Features & Benefits

Contents

Telos Nx12 Trademarks We support you Telos Europe Telos Systems USAPage Table of Contents Basic Configuration Detailed Configuration & Reference Vii Specifications USA Isdn Ordering Guide Welcome to the Nx12 Features & BenefitsIntroduction Why Isdn Makes Sense for Broadcast Talk Show Systems Introduction Step up in Quality and Flexibility Two-Studio Modes Connections to the Telco circuits InstallationGetting Started Alphabet Soup U, S, and NT1 Connecting the Nx12 to Analog LinesIsdn Technology Special Considerations for Euro-ISDN ETS 300 users Data and VoiceHunt Groups Interface Status LEDs Connecting the Nx12 to IsdnIsdn in USA & Canada Using the U Interface Ordering Help Isdn S-interface cable Hot Tip USA and Canada Using IsdnUsing Pots Integration with a PBX Mix-Minus Using a modern broadcast console’s mix-minus capabilityStudio Audio Connections ‘Making do’ with an older console Phones and Remotes Using a small mixerUsing a production-style console Analog Inputs Input To Caller AES Digital Inputs Analog Input XLR AES Digital Outputs Output CallerPOH Program on Hold Inputs Analog Outputs AES3 Output XLR Desktop Director Ports Console Director Desktop DirectorExtended Desktop Director Call Controller Multiple Desktop Directors on a Single Port Connecting Desktop DirectorsExtended Distance with Power Supply Direct Connection Desktop Director Cable Desktop Director Termination Removal Line Designation Strip Desktop Director AssemblyEthernet Connections Record Control Outputs See Section Parallel Gpio Remote Control Output Characteristics Input Characteristics Grounding AC mains PowerSurge Protection Step-by-Step Basic ConfigurationConfiguration for Telephone Lines Isdn Setup Analog Phone Line Setup Basic configuration More Tips Is the Isdn working? Levels, Levels, Levels Audio Input and Output Time to test it out What now? Page Desktop Director Status Symbol IconsUser Operation Call is On-Air Column Call is On-Air & Locked Column Hold & Drop Talent ModeProducer Mode Line Button Columns Function Buttons Block AllDialing Keypad Menu Navigation Volume MenusLCD Screen and Associated Buttons Record Control Other Menu options Changing Between Producer and Talent Modes Screened Hold Using the Director in Producer ModeAnswering calls Normal Hold Drop and Hold Using the Director in Talent on-air ModeBlock All Conferencing callers on the handset/headset Locking VIP calls Conferencing multiple callers on-air using call lockingUsing the Director as a Telephone Next Console Director Call Controller First Step Detailed Configuration & ReferenceLevel Metering Line Status Status Displays Activated Desktop Director StatusAccepting Call Connected Menu Navigation & Item Selection LCD/Button User InterfaceWeb User Interface Nominal Input Level Audio Menu Nominal Output Level Meter ModePhone Send Adjustment Noise Gate Call DuckingReceive AGC Feedback Reduction Mix Minus ModeReceive EQ Caller Dynamic Digital EQ Ddeq In/multiple out In/1 out Channel default AES Mode Channel Telco MenuPots Country Hookflash Ring-in Before Caller ID Web only Enable Auto Call Drop Web onlyLoop Current Checking Web only CPC loop drop threshold ms Web only For USA & Canada and a few other parts of the world Guessing the Isdn Protocol setting in Canada & the USAFor Europe and many other parts of the world SPIDs and MSN/DNs Web Only DN Directory Number MSN Multiple Subscriber Number Clock Loss TCP/IP SetupSystem Menu Contrast LCD Only Show Mode LCD OnlyTo enter IP addresses using the LCD/button interface Audio Loop LCD Only Factory Defaults LCD OnlyReboot LCD Only Hold on Select Single-studio Modes Firmware Update Web OnlyShow Modes This option causes the system to be split as follows Sharing the Nx12 Two-studio Modes Selecting a Show using a Desktop Director Connecting Assistant Producer to a Show LivewireSelecting a Show using a Call Controller Selecting a Show using a Console Director Section Axia Consoles Quality of Service Call-control Software Firmware UpdateOther Uses of the IP/Ethernet Interface Help return Login Telos returnTelnet Windows Telnet ? Isdnlog return ? CPC return Receive Caller Audio Processing System Signal Flow and Audio ProcessingSend Audio Processing Digital Dynamic Equalizer High-pass ‘hum’ FilterReceive Automatic Gain Control Noise Gate Feedback Control Section System Software & Firmware Technical Data & TroubleshootingGeneral Troubleshooting Overview Section Spid Pending Troubleshooting Isdn ProblemsStatus Screen for Isdn troubleshooting Condition Can’t Get Isdn Ready Indication Are you using the Nx12’s internal NT1? USA & Canada only What does the Isdn Cause phrase say? Are your SPIDs and Telco setting correct?Is your long-distance carrier OK? Any other Isdn troubleshooting tips? Condition Intermittent Isdn ProblemsAre the problem confined to incoming call only? What is consistent about the problem look for patterns? Replaceable Modules and Hardware Servicing Troubleshooting Desktop Director ProblemsFuse Replacement Access to the Main PCB Class 1.1 normal Isdn Cause Phrases/Values Cause No Excessive Digits Received, call is proceeding Cause No Call is proceeding/PreemptionCause No Preemption, reserved Cause No Prefix 1 not dialed DMS Custom only Cause No No circuit available circuit/channel congestion Class 1.2 resource unavailableCause No Non-selected user clearing Cause No Destination out of order Class 1.3 service or option not available Class 1.4 service or option not implemented Class 1.5 invalid message e.g. parameter out of range Class 1.6 protocol error e.g. unknown message Cause No Message type non-existent or not implemented Cause No Invalid information element contentsCause No Timeout disconnect Recovery on timer expiration Cause No Protocol Error, unspecified Cause No SW56 disconnect Internetworking, unspecified Cause No Bearer service unavailable VN 4 onlyCause No Switch to conversation mode VN 4 only Class 1.7 interworking class Section Processing Functions SpecificationsGeneral Audio Performance Switching Matrix and ConferencingAudio Control Ports Isdn Telephone Line ConnectivityAnalog Telephone Line Connectivity Desktop Director Ports Euro Operation Mode Four-Column/Four-Hybrid Mode Specifications Page Telos Nx12 Limited Warranty Warranty and Application CautionPage A1 USA SPIDs by Telco Fort Mills Telephone Century TelephoneCincinnati Bell Nextlink/XO Standard Telephone GA Quest- See US West Rochester TelephoneSouthwestern Bell Sprint/Centel 102 A2 Telephone Terminology Guide Bit Error Rate Test-See Bert Calling Party Control- See CPC Circuit Switched Data- See CSD Appendix Extended Superframe. See ESF Interexchange Carrier- See IEC Listed Directory Number- See LDN Appendix Regional Bell Operating Company- See Rboc Superframe- See SF Guide to telephone terminology Appendix Protocols A3 USA Isdn Ordering GuideDealing with the Phone Company Details, Details CSD and CSV SPIDsDirectory Number DN IOC Capability Packages provisioning package Faxable Isdn Order Form for the USA & CanadaNT1s Terminals and Terminal Types Isdn BRI Line Order CO Values Protocol National ISDN-1 Protocol AT&T Point-to-Point Custom Multiple Subscriber Numbers MSN A4 Euro-ISDN Ordering GuideNames Line Deactivation Faxable Isdn Order Form for Euro ETS ETS-300 Euro-ISDN Telos Nx12