ADTRAN Express 3000 SP Informacje Techniczne Strona 27
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Chapter 2 - Technical Information
© Polycom, Inc. 17
The following table gives information about audio features.
The following table gives information about the microphone pods
supplied with the ViewStation EX, ViewStation FX, and VS4000
systems.
Table 2-9. Audio Features
Parameter Value/format
Audio codecs
a
a. The protocol used depends on the protocols supported by the
opposite endpoint and on the line rate. Audio protocol is selected
automatically to provide optimum audio clarity.
G.711, G.722, G.722.1
b
, G.728
b. Provides enhanced frame loss compensation.
Mode Full duplex
Gain control Automatic
Noise suppression Automatic
Echo cancellation Instant adaptation
Table 2-10. Microphone Pods
Parameter Value/description
Pick-up elements 3 hypercardioid pressure-zone microphones
Coverage 360°
Placement Minimum 6 ft (1.8 m) from speakers
Minimum 15 ft (4.6 m) from any other microphone
- Integrators’ 1
- Reference Manual 1
- Trademark Information 2
- Contents 3
- © Polycom, Inc. iii 5
- List of Figures 7
- List of Tables 9
- About this Manual 11
- Glossary 12
- Chapter 1 - About this Manual 13
- © Polycom, Inc. 3 13
- 4 www.polycom.com 14
- © Polycom, Inc. 5 15
- 255.255.255.255; each 16
- © Polycom, Inc. 7 17
- 8 www.polycom.com 18
- © Polycom, Inc. 9 19
- 10 www.polycom.com 20
- Technical Information 21
- System Descriptions 22
- © Polycom, Inc. 13 23
- 14 www.polycom.com 24
- © Polycom, Inc. 15 25
- Ω minimum 26
- Ω maximum 26
- © Polycom, Inc. 17 27
- 18 www.polycom.com 28
- © Polycom, Inc. 19 29
- © Polycom, Inc. 21 31
- 22 www.polycom.com 32
- Quad BRI Cabling 33
- NT-1 Information 34
- ISDN Switches 35
- 26 www.polycom.com 36
- E1 module 37
- 28 www.polycom.com 38
- PRI Cabling 39
- Channel Selection 40
- PRI E1 Channel Information 40
- ❑ 448 Kbps 41
- ❑ 896 Kbps 41
- ❑ 1344 Kbps (E1 only) 41
- V.35/RS-449/RS-530 Cabling 42
- © Polycom, Inc. 33 43
- 34 www.polycom.com 44
- © Polycom, Inc. 35 45
- 36 www.polycom.com 46
- © Polycom, Inc. 37 47
- 38 www.polycom.com 48
- State Machine 49
- 40 www.polycom.com 50
- © Polycom, Inc. 41 51
- 42 www.polycom.com 52
- © Polycom, Inc. 43 53
- Crypto Resync 54
- ❑ MGC Manager™ 55
- ❑ Global Management System™ 55
- ❑ WebCommander™ 55
- ❑ PathNavigator™ 55
- 46 www.polycom.com 56
- Before You Deploy 57
- Predeployment Overview 58
- Video Network Security 59
- Best Practices 60
- Predeployment Planning 61
- LAN/WAN Considerations 62
- Capacity Planning 63
- ❑ Gatekeeper identifier 64
- ❑ Default gatekeeper 64
- ❑ Call routing mode 64
- Developing the Dial Plan 65
- 56 www.polycom.com 66
- Services 67
- ❑ Superusers 68
- ❑ Administrators 68
- Network Topology 69
- Neighbor gatekeepers 69
- Addressing 70
- Entity Addressing 71
- Service Plans 72
- ISDN Requirements 73
- VS4000 systems as follows: 74
- ISDN BRI 75
- 66 www.polycom.com 76
- Chapter 3 - Before You Deploy 77
- © Polycom, Inc. 67 77
- Network Configuration 78
- Installation 78
- Configuration 79
- 70 www.polycom.com 80
- Secondary data module? n 81
- Connected to dte 81
- Site Considerations 82
- Factor For best results 83
- Predeployment Worksheet 84
- © Polycom, Inc. 75 85
- 76 www.polycom.com 86
- Installing Videoconferencing 87
- The Deployment Process 88
- Installation Procedures 89
- NT-1 Device 90
- External Power Supply 91
- Channel Service Unit 92
- © Polycom, Inc. 83 93
- © Polycom, Inc. 85 95
- © Polycom, Inc. 87 97
- Firewall and NAT Issues 99
- 90 www.polycom.com 100
- Connecting the System to a PC 101
- ViewStation FX, or VS4000 102
- © Polycom, Inc. 93 103
- 94 www.polycom.com 104
- © Polycom, Inc. 95 105
- Placing Test Calls 106
- Supporting Advanced Users 107
- Multiple-Monitor Mode 108
- © Polycom, Inc. 99 109
- 100 www.polycom.com 110
- © Polycom, Inc. 101 111
- 102 www.polycom.com 112
- © Polycom, Inc. 103 113
- 104 www.polycom.com 114
- RS-232 Interface 115
- Flow Control 116
- Command Line Interface (CLI) 117
- 108 www.polycom.com 118
- Testing and Troubleshooting 119
- ViewStation EX 120
- Lamp behavior Meaning 121
- Indication Meaning 121
- Interface Module 122
- Fault Isolation 123
- ISDN Error Codes 124
- Code Cause Definition 125
- 120 www.polycom.com 130
- System Interoperability 131
- Manufacturer Model Version 132
- Manufacturer Model Version 133
- Manufacturer Version 134
- : The Cisco 134
- ViewStation Series Cables 135
- 126 www.polycom.com 136
- © Polycom, Inc. 127 137
- Medium and Large Room Systems 138
- © Polycom, Inc. 129 139
- Small Room Systems 140
- © Polycom, Inc. 131 141
- 132 www.polycom.com 142
- Safety and Legal Notices 143
- © Polycom, Inc. 135 145
- 136 www.polycom.com 146
- Chapter 147
- © Polycom, Inc. 137 147
- 138 www.polycom.com 148
- © Polycom, Inc. 139 149
- 140 www.polycom.com 150
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