Parallel Port, Ground, the call is dropped | Telos ZephyrExpress

The Parallel Port

ZephyrExpress’ parallel port has five contact-closure outputs and four logic or contact- closure inputs. Voltages and connection details are in Section 3, Hardware.

Parallel Port

	PIN	FUNCTION

	1	Ground

	2	Output 2

	3	Status Out

	4	Output 3

	5	N/C

	6	Input 3

	7	Input 0/Panic Dial

	8	+5 volts 400 ma max.

PIN FUNCTION

9N/C

10Output 0

11Output 1

12N/C

13Input 2

14Input 1

15N/C

One of the five outputs, pin 3, is used to report successful connections. Use the Codec: Status Out menu item to set this pin to go active low when the receive decoder is locked, or when either or both lines are connected.

One of the four inputs, pin 7, can be used to initiate “Panic Dial” and call a particular

inumber when it’s pulled low. Use the ISDN: Panic dial menu item to specify an autodial setup, which can also include a master setup that configures the codec or other menus. If no Panic Dial setup is specified, the input can be used for ancillary data.ISDN TIP!Panic Dial calls stay connected only while pin 7 is low. When pin 7 is lifted from

ground, the call is dropped.

8-12 SYSTEM FUNCTIONS

Image 141

Telos ZephyrExpress user manual Parallel Port, Ground, the call is dropped

Contents

Manual Version 1.0 / April UserÕs Manual What youÕve got here Feedback Customer Service Blank Screen? Test LinesZephyrExpress will dial a test line for you Power Supply UpdatesWarranty Trademarks Repairs Table of Contents Schematics and Data Sheets Appendix TroubleshootingIsdn Reference System Functions 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 Isdn type, check one Isdn telephone numbers with area codeMSN numbers, i f supplied Euro ETS300 only 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 He Basics Fast Answers to Frequently-Asked QuestionsWhat do I do if IÕm totally lost? Knob either direction to change the LCD Contrast Scrollbar Highlighted How do I use the menus? How do I lock a specific menu? How do I use a menu that appears locked?How do I enter numbers or names? Right 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 Display section Send and Receive MetersLock LEDs LCD Display Edit knob Control section Dial button Drop button Rear Panel Mode switches Data connection sectionIsdn Connections Interface Pinouts Line C Top pin Remote Control jacks Parallel Port RS-232 PinoutsInputs Output 12 N/C Input 15 N/C About the XLR Connectors Audio i/o sectionOutputs Microphone Inputs All XLR PinoutsZephyrExpress Ground Audio + Conductor Input plug Line InputsMonitor 1 XLR outputs Direct Isdn Receive outputs Power Supply Jack Power connectionMonitor 1, Monitor 2 Headphone outputs Headphone Jacks Power Input Power Supply XLR Output+5Vdc @ 5A +12Vdc @ 1.5A 12Vdc @ .5A System Ground 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 Gain Line Routing SwitchRouting, convert the mic inputs to line-level Bold Face Front Panel Hardware Send Meters Send Level Controls Monitor Mixers Monitor Routing SwitchesReceive Meters Send About Monitor Panning Monitor 1 Send Adjusting individual monitor panning Lock lights Receive Meters Analog G.711 phone calls Analog call signal routingReceiving calls Talkback and cues can cut the cost of remote broadcasts Hanging up Placing calls Dealing with Delay Mix-MinusPhones and Remotes Remote Site Audio Operations Compatibility Layer 3 Features Introduction to Audio Coding Overview Basic Principles of Perceptual Coding Coding Psychoacoustic Masking Layer 3 Features Bit Reservoir Buffering Redundancy ReductionAncillary Data Bands Layer 3 Joint Stereo 722 Layer 2 Joint StereoLayer 2 Mono-128 Cascading Mixed Mpeg Layer 2 And Layer 3 Signal Chains Algorithm Audio Freq. Response/mono Audio Coding Comparison ChartAudio Freq. Response/stereo Layer 722 Dual vs Stereo vs Joint Stereo in Layer Delay vs. QualityWith one transmission path With two transmission paths Layer 2 Mono64kpbs vs MONO128 Dual vs Jstereo Dual Site OperationWith one transmission path With two transmission paths Sampling Rate Compatibility Between Telos CodecsWith Non-Telos Equipment Coding Coding Autodial Setups Codec menu Audio menu Isdn menu System menu Safe mode menuMenu Overview Typical menu Menu System Navigation Shortcuts Weõre not Fortune Tellers Getting Help Utility Menu Menu Overview Using Setups Applying a SetupCreating or Changing a Setup Applying a Master Setup Master Setups Auto-creating a new Master Setup Creating or Changing a Master Setup Manually creating a Master Setup Updating an existing Master SetupDeleting a Master Setup Autodial Setups Creating a new AutodialEditing or deleting an 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 Ordering Central Office Switches and Protocols Background Basic Rate Interface BRIZephyrExpress Isdn Compatibility 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 Protocols ZephyrExpress Isdn CompatibilityNT1s Terminals and Terminal Types 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 Communicating Pin GroundPin 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 Other Ideas Diagnostic AidsLook into the Lights Front-panel LEDs Far Loopback for local audio testing TheyÕre disconnected during Far Loopback modeLoopback modes NT1 status LED Block diagram of the audio circuitry during Far Loopback Near Loopback for codec testing Operation Far Loopback from the distant studioLoopback Summary 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 No Audio In Both Directions Condition Audio In One Direction OnlyCondition Audio Distorted Error Messages Isdn ProblemsCondition Major Echo Action Condition CanÕt Get Isdn Ready Ready Indication 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 Check number, redial Cause No No route to destination. Prefix 1 dialed in errorCause No No route to network Cause No No prefix Cause No No answer Cause No No far end responseCause No Call rejected Cause No Number changed Cause No Access information discarded Cause No Net problem, redialCause No No circuit available Cause No Net out of order Cause No Resource unavailable Cause No Service operation violatedCause No Requested facility not subscribed Cause No Incompatible bearcap Cause No Timeout disconnect Cause No Invalid information element contentsCause No Protocol Error, Unspecified Cause No Message type nonexistent or not implemented Troubleshooting Schematics Appendix Level, Gain, dBu and dBm ÒNominalÓ Levels Codec Compatibility Information CCS Comrex Intraplex Dialog Comprehensive ZephyrExpress Compatibility ListYouCom CCS CDQ1000 CCS CDQ2001 CCS CDQ2000CCS Prima Comrex Layer-II DX-200 PKI Magic PKI G.722 phonePhilips MPR LIIBlue Philips MPR Baby Blue WWW Paper Telos World Wide Web site AudiobahnDigifon List WWW Phone EdNet List of Known Working SPIDs by Telephone Company Nynex Northern Pittsburgh Tele- phonePacific Bell Southwestern Bell Company Telephone Number Worldwide WEB Ordering Isdn Protocols IOC Capability Packages SPIDs CSD and CSV56/64kbps NT1s Terminals and Terminal TypesLong Distance Carriers Faxable Isdn Order Form for use in US only From Location for line Faxable Isdn BRI Line Order Form Page 1 Protocol National ISDN-1 Protocol AT&T Point-to-Point CustomCO Values Protocol Northern Telecom DMS100 ÔFunctionalÕ Custom, PVC1 Protocol AT&T Point-to-Multipoint CustomGive us Not supported by ZephyrExpress Appendix