Nokia 6800 Series Uživatelský manuál stáhnout pdf (Strana 46)

6800/7000 Series - Distribution and Routing Products Installation and Opertion Manual 19

Network Configurations Chapter 2: DNH-6800 DigiNet Hub Module

Large Network

A large network is defined as having over 500 unit nodes. Figure 2-4

illustrates a constant signal delay.

Figure 2-4. DNH-6800 DigiNet Hub Module (Large Network)

Nodes

Termination

Constant Delay Topology

(Preferred For Large Systems)

HUB HUB HUB HUB

DNH-6800

This type of configuration limits

delay by ensuring that the signal

travels through a maximum of

three Hubs.

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 150 151

6800/7000 Series 1
Distribution and Routing 3
Products 3
Audience 5
Writing Conventions 5
Revision History 6
Product Manuals 7
LogoMotion Manual 8
Installation Information 10
Important Safety Instructions 11
Injury Precautions 12
Product Damage Precautions 15
Battery Use Warnings 17
EMC Standards 19
Safety Standards 20
Contents 22
AES-6880 AES/EBU 28
Functional Block Diagram 29
Equalization Adjustment 30
Multi-turn potentiometer 31
(Manual EQ Mode Only) 31
Error Detection and Reporting 32
AES-6880 33
External Alarm 34
Power Supply 36
DNH-6800 DigiNet Hub Module 38
Block Diagram Flow 39
Maximum Unit Nodes 41
Connections 43
Network Configurations 44
Mid-Size Network 45
Large Network 46
User Interface 47
Overview 50
Control Interface 52
Switches 54
Switch Description 55
LED Description 55
Jumper Description 57
Fault Reporting Output 59
USM-6800 PAL/NTSC Monitoring 60
Encoder Module 60
Features 61
Composite Analog Outputs 63
Component Analog Outputs 63
Rear Connector 64
Controls and Indicators 65
VDA-6830 Video Distribution 70
Operational Adjustments 73
VEA-6830 Video 74
Differential Gain 77
VEA-6840 Video Equalizing 80
Equalization 85
SOFTHARD 88
VPD-6830 Programmable 90
Video DA Series 90
VPD-6830 Series DAs 91
VPD-6830-CLP Specifications 94
VPD-6830-CLP 97
VPD-6830-XEQ Specifications 100
Temperature 101
Power Requirements 101
VPD-6830-XEQ 102
VPD-6830-DEQ 104
VPD-6830-DEQ Specifications 105
Performance 106
VPD-6830-DLY Series 110
PD-6830-DLY240 111
VPD-6830 DLY Specifications 112
Item Specification 113
VPD-6830-DLY240 115
VSE-6801 Serial Equalizing 120
Amplifier Module 120
Serial Video Outputs 121
Operation 122
LEDs Function 123
VSE-6802 Serial Equalizing 124
Distribution Amplifier Module 124
Figure 10-1. VSE-6802 125
Amplifier 125
Specification 126
LED Indicators 127
Jumper and Potentiometer 128
Signal Monitor Module 132
Specifications 133
Installation 135
Composite Analog Output 138
Interface Switches 140
Switch Setting Function 141
Switching Point 143
Selecting V-trig (J10) 145
Connection 145
Adjustment 146
Test Points 147
Control Panel 148

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