Polycom DOC2237A Manual de usuario Pagina 132
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Chapter 4 - Hardware Description
4-60
The maximum transmission capability of E1 lines (up to 1920 Kbps) can be
used in Transcoding or Continuous Presence conferences. To enable the high
line rate transmission, a newer video card version (version 1.43 and up) must
be installed.
Figure 4-12 describes the various video card versions and their support of 30
frames per second and high bit rate:
If the High Bit Rate flag is set to Yes, and the MCU contains video cards of a
version older than 1.43, the MCU status changes to Major and an appropriate
error message is added to the Faults log. In such a case, the highest line rate
that can be set for the conference is 768 Kbps. If the High Bit Rate flag is set
to No, the high bit rate option is disabled and the highest conference rate is
limited to 768 Kbps.
Video+ Module
The Video+ module supports up to 8 participants per module. In addition
it provides the following features/enhancements:
• Click&View - A graphical console transmitted to endpoints enabling
the users to change their personalized video layout or conference.
• Personal Layout - Definition and on-the-fly modification of
individualized participant Continuous Presence layouts. For details,
see Personal Layout
• Visual Effects - Definition of background colors, frame colors and
frame widths for Continuous Presence layouts. For details, see Visual
Effects
Table 4-5: Video card 30 FPS and high bit rate support
Video Card Version 30 FPS Support High Bit Rate Support
1.20, 1.21, 1.22, 1.23 — —
1.24 —
1.41, 1.42 —
1.43, 1.44 or higher
- Polycom MGC 50/MGC 100 1
- Trademark Information 2
- Patent Information 2
- Table of Contents 3
- Before You Begin 9
- Chapter 1 - Before You Begin 10
- MGC Unit Main Features 11
- MGC-50/MGC-100 Specifications 12
- • Conference 14
- • Channel 14
- Scope of Manual 16
- Conventions 17
- List of Abbreviations 18
- Hardware Installation 21
- MGC-100 Hardware Installation 22
- Foam Block 23
- Wood Packing Case 23
- Screw mounting 25
- Secure with nut 25
- Figure 2-3: MCU Rack Mount 26
- Item #3 27
- NEBS Standard 28
- ALARMSCOM 1 29
- 10/100 Mbits 29
- AC Inlet 30
- Main Switch 30
- ISDN network 33
- IP+48 on the MGC+ rear panel 35
- MPI Box 36
- MGC-50 Hardware Installation 41
- Foam Blocks 42
- Mounting the MGC-50 on a Rack 43
- Mounting 45
- and T1-CAS network: 48
- ATM 155 t k 50
- MPIPRI-8 54
- First Entry IP Configuration 55
- Clocking 61
- System Architecture 63
- Backplane 64
- Information Flow 69
- MGC Manager Interface 71
- Power Supply Flow 71
- Hardware Description 73
- MGC-100 Components Location 74
- Main Control 78
- MGC-50 Components Location 79
- Main Control Module 82
- Control Unit Installation 85
- IP Configuration Change 86
- Hard Drive Operation 86
- Inserting the Hard Drive 87
- Removing the Hard Drive 87
- Hard Drive Limitations 88
- Control Bus 90
- Information Highway 91
- Powerplane 91
- Power Supply Module 92
- Power Supply Cord 93
- Power Module in the MGC-50 93
- Alarms Port 94
- Functional Modules 95
- • 12 channels at 128 96
- • 48 channels at 96
- • 96 channels at 96
- • T.120 standard card 98
- • T.120-24 card - 24 98
- Network Interface Module 103
- Block Diagram 105
- Module Port Capacity 108
- IP+ Port Capacities 111
- T1 ISDN line 114
- (23 channels) 114
- MUX Module 116
- MUX Module Architecture 118
- MUX+ Module 119
- MUX+ Card Properties 120
- MUX+ Port Capacity 121
- MUX+ Participant Move Options 123
- MUX+ Resource Report 124
- Audio Module (Standard) 125
- Audio Module Architecture 127
- Audio+ Module 128
- Audio+ Module Architecture 129
- Audio + Port Capacities 129
- Video Module (Standard) 131
- Video+ Module 132
- Data Module 134
- Input/Output Cards 135
- Figure 4-40: Music-IO card 138
- Greet and Guide Hardware Kit 139
- Top latch 140
- Bottom latch 140
- System Maintenance 145
- Controls and Indicators 146
- MGC Unit Rear Panel 151
- Corrective Maintenance 153
- Replacing a Functional Module 154
- Replacing the I/O Cards 154
- Replacing the Fuse 155
- (including the NEBS Unit) 155
- Troubleshooting 163
- Appendix A: Interfaces Pin 165
- Assignment 165
- LAN PIN Assignment 166
- Alarms Port Pin Assignment 166
- RS-232 Pin Assignment 167
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