Telos ZephyrExpress Manuals

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Telos ZephyrExpress User Manual

Telos ZephyrExpress User Manual (186 pages)

Portable ISDN Digital Audio Transceiver / Mixer

Brand: Telos | Category: Music Mixer | Size: 2 MB

Table of Contents

Table of Contents

7
- Customer Service
  3
- Warranty
  5
- Notes about this Manual
  10
- Block Diagram
  11
- Menu Structure
  12
Section 1: Quick Results

13
Section 3 Z E

42
- Hardware
  42
- Front Panel
  
  43
  - The Mixer Section
    44
    
    Send Mixer
    44
    
    Monitor Mixers
    45
  - Display Section
    46
    
    Lock Leds
    46
    
    Send and Receive Meters
    46
    
    Blank Screen
    47
    
    LCD Display
    47
    
    SAFE Indicator
    47
  - Control Section
    48
    
    Edit Knob
    48
    
    DIAL Button
    49
    
    DROP Button
    50
    
    HELP Button
    50
    
    Numeric Keypad
    50
    
    UTIL Button
    50
- About Our Hardware
  
  43
- Rear Panel
  
  51
  - Data Connection Section
    52
    
    ISDN Connections
    52
    
    MODE Switches
    52
    
    Remote Control Jacks
    54
    
    Inputs
    55
    
    Parallel Port
    55
  - Audio I/O Section
    56
    
    About the XLR Connectors
    56
    
    Outputs
    56
    
    Microphone Inputs
    57
    
    Direct ISDN Receive Outputs
    58
    
    Line Inputs
    58
    
    Monitor 1 XLR Outputs
    58
  - Power Connection
    59
    
    Monitor 1, Monitor 2 Headphone Outputs
    59
    
    Power Supply Jack
    59
    
    Power Input
    60
    
    Power Supply
    60
Section 4 Audio Operations

63
- A Console at Your Fingertips
  64
- The Send Mixer
  65
  - Microphone Inputs
    65
    
    MIC Routing Switches
    67
    
    Line Inputs
    68
    
    Line Routing Switch
    68
    
    Send Level Controls
    69
    
    SEND Meters
    69
    
    Headphone Jack
    70
- The Monitor Mixers
  70
  - Monitor Routing Switches
    70
    
    About Monitor Panning
    71
    
    Adjusting Individual Monitor Panning
    72
- LOCK Lights
  73
- Receive Meters
  73
- Analog (G.711) Phone Calls
  74
  - Analog Call Signal Routing
    74
    
    Receiving Calls
    74
    
    Hanging up
    75
    
    Placing Calls
    75
- Dealing with Delay
  76
  - MIX-Minus
    76
    
    Phones and Remotes
    76
Section 5 Audio Coding

79
- Overview
  
  80
  - Introduction to Audio Coding
    80
  - Basic Principles of Perceptual Coding
    81
- Iso/Mpeg Layer 3
  
  83
  - Layer 3 Features
    83
    
    Psychoacoustic Masking
    83
    
    Ancillary Data
    84
    
    Bit Reservoir Buffering
    84
    
    Redundancy Reduction
    84
- Iso/Mpeg Layer 2
  
  85
  - Layer 3 Joint Stereo
    85
    
    Layer 2 Joint Stereo
    86
    
    Layer 2 Mono-128
    86
- G.722
  
  87
- G.722
  
  87
- Cascading
  
  87
  - Mixed MPEG Layer 2 and Layer 3 Signal Chains
    88
- Choosing the Coding Method for Your Application
  
  89
  - Delay Vs. Quality
    90
    
    Dual Vs Stereo Vs Joint Stereo in Layer 3
    90
    
    Dual Site Operation
    91
    
    Layer 2: Mono64Kpbs Vs MONO128; Dual Vs JSTEREO
    91
    
    Sampling Rate
    92
  - Compatibility
    93
    
    Between Telos Codecs
    93
    
    With Non-Telos Equipment
    93
Section 6 Menu Reference

96
- The Menu System
  
  97
  - A Typical Menu
    97
    
    Navigation Shortcuts
    98
    
    Getting HELP
    99
  - Menu Overview
    100
- Using Setups
  
  101
  - Applying a Setup
    101
  - Creating or Changing a Setup
    101
  - Master Setups
    102
  - Applying a Master Setup
    102
  - Creating or Changing a Master Setup
    103
    
    Auto-Creating a New Master Setup
    103
    
    Deleting a Master Setup
    104
    
    Manually Creating a Master Setup
    104
    
    Updating an Existing Master Setup
    104
  - Autodial Setups
    105
    
    Creating a New Autodial
    105
    
    Editing or Deleting an Autodial
    105
- Menu Details
  
  106
  - Codec Menu
    106
  - Audio Menu
    108
  - ISDN Menu
    110
  - System Menu
    112
  - Safe Mode Menu
    114
Section 7 Isdn

116
- Background
  117
- Isdn Basics
  117
- The Basic Rate Interface (BRI)
  118
  - Spids
    119
  - Directory Numbers (Dns)
    121
  - Long-Distance Digital Connectivity
    121
- How to Order Isdn
  122
  - Dealing with the Phone Company
    122
  - Details, Details
    123
- Zephyrexpress ISDN Compatibility
  124
  - Protocols
    124
- Ordering: Central Office Switches and Protocols
  125
Section 8 System Functions

130
- Introduction
  131
  - Software Updates
    131
  - Zephyrexpress Data Ports
    132
  - The Serial Port
    132
    
    Communicating
    133
    
    Security Levels
    134
    
    Command Help
    135
    
    Command Language Details
    136
    
    System Functions
    138
  - The Parallel Port
    141
Section 9 Troubleshooting

143
- First Steps
  
  144
- General
  
  145
  - Thinking about Problem Solving
    145
  - Diagnostic Aids
    147
    
    Look into the Lights
    147
    
    LOOPBACK Modes
    148
  - Some Error Conditions
    152
    
    No Functionality; the Box Is Totally or Partly Dead
    152
    
    Condition: ISDN Connecting OK, but no Audio
    153
    
    Condition: Audio Distorted
    154
    
    Condition: Audio in One Direction Only
    154
    
    Condition: no Audio in both Directions
    154
    
    Condition: Major Echo Action
    155
    
    Error Messages
    155
- ISDN Problems
  
  155
Section 11 Appendix

168
- About Audio Levels
  
  169
  - Nominal" Levels
    169
  - Level, Gain, Dbu and Dbm
    169
- Codec Compatibility Information
  
  170
  - Comprehensive Zephyrexpress Compatibility List
    172
- Finding Public Isdn Sites
  
  174
  - List of Known Working Spids by Telephone Company
    176
    
    Ameritech
    176
    
    Bell Atlantic
    176
    
    Bell South
    176
    
    Cincinatti Bell
    176
    
    Fort Mills Telephone
    176
    
    Gte
    177
    
    Northern Pittsburgh Telephone
    177
    
    Nynex
    177
    
    Pacific Bell
    177
    
    SNET (Southern New England Telephone)
    177
    
    Southwestern Bell
    177
    
    Sprint/Centel
    177
    
    US West
    177
- Isdn Bri, Zephyr, and You
  
  177
  - Ordering ISDN
    178
    
    Dealing with the Phone Company
    178
    
    Details, Details
    179
    
    IOC Capability Packages
    179
    
    Protocols
    179
    
    56/64Kbps
    180
    
    CSD and CSV
    180
    
    Spids
    180
    
    Long Distance Carriers
    181
    
    Nt1S
    181
    
    Terminals and Terminal Types
    181
- The Faxable ISDN Order Form (for Use in US Only)
  
  182

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