Troubleshooting | Telos ZephyrExpress specs

SECTION 9

TROUBLESHOOTING

First Steps	9-2
GENERAL	9-3
Thinking About Problem Solving	9-3
Diagnostic Aids	9-5
Look into the Lights	9-5
LOOPBACK modes	9-6
Some Error Conditions	9-10
No functionality; the box is totally or partly dead.	9-10
Condition: ISDN Connecting OK, But No Audio	9-11
Condition: No Audio In Both Directions	9-12
Condition: Audio In One Direction Only	9-12
Condition: Audio Distorted	9-12
Condition: Major Echo Action	9-13
Error Messages	9-13
ISDN Problems	9-13
Condition: CanÕt Get ISDN Ready Ready Indication	9-13
Intermittent ISDN Problems	9-18
ISDN Cause Phrases/Values	9-18

TROUBLESHOOTING 9-1

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Telos ZephyrExpress user manual Troubleshooting

Contents

Manual Version 1.0 / April UserÕs Manual What youÕve got here Feedback Customer Service ZephyrExpress will dial a test line for you Blank Screen?Test Lines Trademarks UpdatesPower Supply Warranty Repairs Table of Contents System Functions TroubleshootingSchematics and Data Sheets Appendix Isdn Reference Introduction H i c t Block Diagram Utility Menu Menu Structure Tune into one of our test lines Quick Results Quick Results Part 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 Configure the Codec Call yourself testing your unit and the line HOT TIP Place the call to yourself Set up an audio input and output Quick Results Tune into one of our test lines Isdn TIP Knob either direction to change the LCD Contrast Fast Answers to Frequently-Asked QuestionsHe Basics What do I do if IÕm totally lost? Scrollbar Highlighted How do I use the menus? Right How do I use a menu that appears locked?How do I lock a specific menu? How do I enter numbers or names? H6 How do I create my own Setups and Master Setups? HOT TIP How do I test that IÕve set things up properly? How do I manually enter a network setup? What do I do if I canÕt connect? Alternate test procedure How do I use line-level sources? Audio setup How do I set ZephyrExpress for my microphones? How do I create a monitor mix? How do I test my audio and compression setups? Isdn Connection How do I place a call? HHOT TIP What do I do if they canÕt hear me? How do I hang up? How do I send a test tone? Where do I find answers to other questions? Circuit information · 1-4 coding methods · Quick Results Zephyrexpress Hardware Front Panel About our hardware Send Mixer Mixer Section Level Controls Monitor Mixers Lock LEDs Display sectionSend and Receive Meters LCD Display Edit knob Control section Dial button Drop button Rear Panel Isdn Connections Mode switchesData connection section Interface Pinouts Line C Top pin Remote Control jacks Output 12 N/C Input 15 N/C RS-232 PinoutsParallel Port Inputs Outputs About the XLR ConnectorsAudio i/o section Ground Audio + All XLR PinoutsMicrophone Inputs ZephyrExpress Direct Isdn Receive outputs Line InputsConductor Input plug Monitor 1 XLR outputs Headphone Jacks Power connectionPower Supply Jack Monitor 1, Monitor 2 Headphone outputs +5Vdc @ 5A +12Vdc @ 1.5A 12Vdc @ .5A System Ground Power InputPower Supply XLR Output Zephyrexpress Hardware Zephyrexpress Hardware Audio Operations Mix flexibility Console at your fingertips Routing Send Mixer Beware the Phantom Compression, will make any perceptual coder less efficient Mic Routing Switches Bold Face Front Panel Hardware Line Routing SwitchGain Routing, convert the mic inputs to line-level Send Meters Send Level Controls Send Monitor Routing SwitchesMonitor Mixers Receive Meters About Monitor Panning Monitor 1 Send Adjusting individual monitor panning Lock lights Receive Meters Talkback and cues can cut the cost of remote broadcasts Analog call signal routingAnalog G.711 phone calls Receiving calls Hanging up Placing calls Phones and Remotes Dealing with DelayMix-Minus Remote Site Audio Operations Compatibility Layer 3 Features Introduction to Audio Coding Overview Basic Principles of Perceptual Coding Coding Psychoacoustic Masking Layer 3 Features Bands Redundancy ReductionBit Reservoir Buffering Ancillary Data Layer 3 Joint Stereo Layer 2 Mono-128 722Layer 2 Joint Stereo Cascading Mixed Mpeg Layer 2 And Layer 3 Signal Chains Layer 722 Audio Coding Comparison ChartAlgorithm Audio Freq. Response/mono Audio Freq. Response/stereo With two transmission paths Delay vs. QualityDual vs Stereo vs Joint Stereo in Layer With one transmission path With two transmission paths Dual Site OperationLayer 2 Mono64kpbs vs MONO128 Dual vs Jstereo With one transmission path 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 Typical menu Menu System Navigation Shortcuts Weõre not Fortune Tellers Getting Help Utility Menu Menu Overview Creating or Changing a Setup Using SetupsApplying a Setup Applying a Master Setup Master Setups Auto-creating a new Master Setup Creating or Changing a 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 Codec menu Menu Details 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 Background Isdn Basics Isdn TIP Basic Rate Interface BRI Spids Get the SPIDs Get the SPIDs Long-Distance Digital Connectivity Directory Numbers DNs Dealing with The Phone Company Switch carriers CSD and CSV Details, Details Terminals and Terminal Types ZephyrExpress Isdn CompatibilityProtocols NT1s National ISDN-1 USA and Canada Ordering Central Office Switches and Protocols1 AT&T Point-to-Point Custom USA, Japan, Israel, some others Zephyrexpress Settings for YOU to Enter AT&T Point-to-Multipoint Custom Zephyr Settings for YOU to Enter Euro-ISDN Europe, Hong Kong, some others Isdn System Functions Introduction Software Updates Serial Port ZephyrExpress data ports Pin CommunicatingPin Ground Hello, ZephyrExpress Security Levels Login user ¶ Command Help Command Language Details Compatibility Note Display current encoder input & decoder Kept # for decimal numbers Times Ground, the call is dropped Parallel Port System Functions Troubleshooting First Steps General Thinking About Problem Solving Troubleshooting Front-panel LEDs Diagnostic AidsOther Ideas Look into the Lights NT1 status LED TheyÕre disconnected during Far Loopback modeFar Loopback for local audio testing Loopback modes Block diagram of the audio circuitry during Far Loopback Near Loopback for codec testing Loopback Summary OperationFar Loopback from the distant studio No functionality the box is totally or partly dead Some Error Conditions Site B, but works perfectly when site B calls site a Condition Isdn Connecting OK, But No Audio Condition Audio Distorted Condition No Audio In Both DirectionsCondition Audio In One Direction Only Condition CanÕt Get Isdn Ready Ready Indication Isdn ProblemsError Messages Condition Major Echo Action Dial, itÕs likely that your line is really National ISDN-11 Ready when the switch type is set to PTP, and you cannot Really Important Isdn TIP Can you place a pots call? What does the Isdn Cause phrase say? Isdn Cause Phrases/Values Intermittent Isdn Problems Cause No No prefix Cause No No route to destination. Prefix 1 dialed in errorCause No Check number, redial Cause No No route to network Cause No Number changed Cause No No far end responseCause No No answer Cause No Call rejected Cause No Net out of order Cause No Net problem, redialCause No Access information discarded Cause No No circuit available Cause No Incompatible bearcap Cause No Service operation violatedCause No Resource unavailable Cause No Requested facility not subscribed Cause No Message type nonexistent or not implemented Cause No Invalid information element contentsCause No Timeout disconnect Cause No Protocol Error, Unspecified Troubleshooting Schematics Appendix Level, Gain, dBu and dBm ÒNominalÓ Levels Codec Compatibility Information CCS Comrex Intraplex CCS CDQ1000 Comprehensive ZephyrExpress Compatibility ListDialog YouCom Comrex Layer-II DX-200 CCS CDQ2000CCS CDQ2001 CCS Prima Philips MPR Baby Blue PKI G.722 phonePKI Magic Philips MPR LIIBlue WWW Phone EdNet Telos World Wide Web site AudiobahnWWW Paper Digifon List List of Known Working SPIDs by Telephone Company Southwestern Bell Northern Pittsburgh Tele- phoneNynex Pacific Bell Company Telephone Number Worldwide WEB Ordering Isdn Protocols IOC Capability Packages 56/64kbps SPIDsCSD and CSV Long Distance Carriers NT1sTerminals and Terminal Types Faxable Isdn Order Form for use in US only From Location for line Faxable Isdn BRI Line Order Form Page 1 CO Values Protocol National ISDN-1Protocol AT&T Point-to-Point Custom Not supported by ZephyrExpress Protocol AT&T Point-to-Multipoint CustomProtocol Northern Telecom DMS100 ÔFunctionalÕ Custom, PVC1 Give us Appendix