Codec Compatibility Information | Telos ZephyrExpress manual

	100½
+4 dBu	+4 dBu	20k½

100½

Here, the output is loaded with a high impedance, as would be the case with modern equipment. ZephyrExpress’ voltage level is conveyed to the load with no noticeable attenuation.

	100½
+4 dBu	+1.5dBu	600½

100½

When a 600 ½ load is used, the voltage divides, with 2.5 dB being lost in Zephyr- Express’ internal source resistance. Note that, in this case, the meter across the 600 ½ resistor can be said to be indicating dBu or dBm.

CODEC COMPATIBILITY INFORMATION

We believe strongly in the benefits of compatibility. That is why we include a variety of operational modes designed to accommodate the largest number of non-Telos codecs.

We are constantly testing compatibility in our own labs, as well as accumulating infor- mation from others regarding using ZephyrExpress with other codecs. For the latest compatibility information please check our web site, http://www.Zephyr.com, or con- tact Telos customer support.

This is an area constantly in flux, so please contact us with any specific needs not covered below. We also appreciate your contacting us with any information which could be of use to others.

APPENDIX 11-3

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Telos ZephyrExpress user manual Codec Compatibility Information

Contents

UserÕs Manual Manual Version 1.0 / April What youÕve got here Customer Service Feedback ZephyrExpress will dial a test line for you Blank Screen?Test Lines Warranty UpdatesPower Supply Trademarks Repairs Table of Contents Isdn Reference TroubleshootingSchematics and Data Sheets Appendix System Functions Introduction H i c t Block Diagram Menu Structure Utility Menu Quick Results Tune into one of our test lines Part Quick Results Gather information about your Isdn line MSN numbers, i f supplied Euro ETS300 only Isdn type, check oneIsdn telephone numbers with area code Set up the hardware Quick Results HConfigure ZephyrExpress for your Isdn line Quick Results Call yourself testing your unit and the line Configure the Codec HOT TIP Set up an audio input and output Place the call to yourself Quick Results Tune into one of our test lines Isdn TIP What do I do if IÕm totally lost? Fast Answers to Frequently-Asked QuestionsHe Basics Knob either direction to change the LCD Contrast How do I use the menus? Scrollbar Highlighted How do I enter numbers or names? How do I use a menu that appears locked?How do I lock a specific menu? Right H6 How do I create my own Setups and Master Setups? HOT TIP How do I manually enter a network setup? How do I test that IÕve set things up properly? Alternate test procedure What do I do if I canÕt connect? Audio setup How do I set ZephyrExpress for my microphones? How do I use line-level sources? How do I test my audio and compression setups? How do I create a monitor mix? Isdn Connection How do I place a call? What do I do if they canÕt hear me? HHOT TIP How do I send a test tone? How do I hang up? Where do I find answers to other questions? Circuit information · 1-4 coding methods · Quick Results Zephyrexpress Hardware About our hardware Front Panel Mixer Section Send Mixer Monitor Mixers Level Controls Lock LEDs Display sectionSend and Receive Meters LCD Display Control section Edit knob Dial button Drop button Rear Panel Isdn Connections Mode switchesData connection section Interface Pinouts Remote Control jacks Line C Top pin Inputs RS-232 PinoutsParallel Port Output 12 N/C Input 15 N/C Outputs About the XLR ConnectorsAudio i/o section ZephyrExpress All XLR PinoutsMicrophone Inputs Ground Audio + Monitor 1 XLR outputs Line InputsConductor Input plug Direct Isdn Receive outputs Monitor 1, Monitor 2 Headphone outputs Power connectionPower Supply Jack Headphone Jacks +5Vdc @ 5A +12Vdc @ 1.5A 12Vdc @ .5A System Ground Power InputPower Supply XLR Output Zephyrexpress Hardware Zephyrexpress Hardware Audio Operations Console at your fingertips Mix flexibility Send Mixer Routing Beware the Phantom Mic Routing Switches Compression, will make any perceptual coder less efficient Routing, convert the mic inputs to line-level Line Routing SwitchGain Bold Face Front Panel Hardware Send Level Controls Send Meters Receive Meters Monitor Routing SwitchesMonitor Mixers Send About Monitor Panning Adjusting individual monitor panning Monitor 1 Send Receive Meters Lock lights Receiving calls Analog call signal routingAnalog G.711 phone calls Talkback and cues can cut the cost of remote broadcasts Placing calls Hanging up Phones and Remotes Dealing with DelayMix-Minus Remote Site Audio Operations Layer 3 Features Compatibility Overview Introduction to Audio Coding Basic Principles of Perceptual Coding Coding Layer 3 Features Psychoacoustic Masking Ancillary Data Redundancy ReductionBit Reservoir Buffering Bands Layer 3 Joint Stereo Layer 2 Mono-128 722Layer 2 Joint Stereo Cascading Mixed Mpeg Layer 2 And Layer 3 Signal Chains Audio Freq. Response/stereo Audio Coding Comparison ChartAlgorithm Audio Freq. Response/mono Layer 722 With one transmission path Delay vs. QualityDual vs Stereo vs Joint Stereo in Layer With two transmission paths With one transmission path Dual Site OperationLayer 2 Mono64kpbs vs MONO128 Dual vs Jstereo With two transmission paths Sampling Rate With Non-Telos Equipment CompatibilityBetween Telos Codecs Coding Coding Menu Overview Autodial SetupsCodec menu Audio menu Isdn menu System menu Safe mode menu Menu System Typical menu Navigation Shortcuts Getting Help Weõre not Fortune Tellers Menu Overview Utility Menu Creating or Changing a Setup Using SetupsApplying a Setup Master Setups Applying a Master Setup Creating or Changing a Master Setup Auto-creating a new Master Setup Deleting a Master Setup Manually creating a Master SetupUpdating an existing Master Setup Editing or deleting an Autodial Autodial SetupsCreating a new Autodial Menu Details Codec menu Isdn TIP Audio menu See , Audio 75 dB @ 100 Hz -10 dB @ 40 Hz Isdn menu Directory Number 7 digits System menu Seconds Minute Minutes Minutes Never Safe mode menu Menus ZephyrExpress Isdn Compatibility Ordering Central Office Switches and ProtocolsBackground Basic Rate Interface BRI Isdn Basics Background Basic Rate Interface BRI Isdn TIP Spids Get the SPIDs Get the SPIDs Directory Numbers DNs Long-Distance Digital Connectivity Switch carriers Dealing with The Phone Company Details, Details CSD and CSV NT1s ZephyrExpress Isdn CompatibilityProtocols Terminals and Terminal Types Ordering Central Office Switches and Protocols1 National ISDN-1 USA and Canada Zephyrexpress Settings for YOU to Enter AT&T Point-to-Point Custom USA, Japan, Israel, some others Zephyr Settings for YOU to Enter AT&T Point-to-Multipoint Custom Euro-ISDN Europe, Hong Kong, some others Isdn System Functions Software Updates Introduction ZephyrExpress data ports Serial Port Pin CommunicatingPin Ground Security Levels Hello, ZephyrExpress Command Help Login user ¶ Command Language Details Compatibility Note Display current encoder input & decoder Kept Times # for decimal numbers Parallel Port Ground, the call is dropped System Functions Troubleshooting First Steps Thinking About Problem Solving General Troubleshooting Look into the Lights Diagnostic AidsOther Ideas Front-panel LEDs Loopback modes TheyÕre disconnected during Far Loopback modeFar Loopback for local audio testing NT1 status LED Block diagram of the audio circuitry during Far Loopback Near Loopback for codec testing Loopback Summary OperationFar Loopback from the distant studio Some Error Conditions No functionality the box is totally or partly dead Condition Isdn Connecting OK, But No Audio Site B, but works perfectly when site B calls site a Condition Audio Distorted Condition No Audio In Both DirectionsCondition Audio In One Direction Only Condition Major Echo Action Isdn ProblemsError Messages Condition CanÕt Get Isdn Ready Ready Indication Ready when the switch type is set to PTP, and you cannot Dial, itÕs likely that your line is really National ISDN-11 Really Important Isdn TIP Can you place a pots call? What does the Isdn Cause phrase say? Intermittent Isdn Problems Isdn Cause Phrases/Values Cause No No route to network Cause No No route to destination. Prefix 1 dialed in errorCause No Check number, redial Cause No No prefix Cause No Call rejected Cause No No far end responseCause No No answer Cause No Number changed Cause No No circuit available Cause No Net problem, redialCause No Access information discarded Cause No Net out of order Cause No Requested facility not subscribed Cause No Service operation violatedCause No Resource unavailable Cause No Incompatible bearcap Cause No Protocol Error, Unspecified Cause No Invalid information element contentsCause No Timeout disconnect Cause No Message type nonexistent or not implemented Troubleshooting Schematics Appendix ÒNominalÓ Levels Level, Gain, dBu and dBm Codec Compatibility Information CCS Comrex Intraplex YouCom Comprehensive ZephyrExpress Compatibility ListDialog CCS CDQ1000 CCS Prima CCS CDQ2000CCS CDQ2001 Comrex Layer-II DX-200 Philips MPR LIIBlue PKI G.722 phonePKI Magic Philips MPR Baby Blue Digifon List Telos World Wide Web site AudiobahnWWW Paper WWW Phone EdNet List of Known Working SPIDs by Telephone Company Pacific Bell Northern Pittsburgh Tele- phoneNynex Southwestern Bell Ordering Isdn Company Telephone Number Worldwide WEB IOC Capability Packages Protocols 56/64kbps SPIDsCSD and CSV Long Distance Carriers NT1sTerminals and Terminal Types Faxable Isdn Order Form for use in US only Faxable Isdn BRI Line Order Form Page 1 From Location for line CO Values Protocol National ISDN-1Protocol AT&T Point-to-Point Custom Give us Protocol AT&T Point-to-Multipoint CustomProtocol Northern Telecom DMS100 ÔFunctionalÕ Custom, PVC1 Not supported by ZephyrExpress Appendix