Motorola SG4-DRT-2X Instrucciones de operaciones descargar pdf (Pagina 50)

3-22 Bench Setup and Operation

SG4000 Installation and Operation Manual

Return Path Configuration

The following subsections present information to help you configure the SG4000 return path.

To configure the return path, you must install configuration-specific boards in return

configuration board locations 2 and 3, as illustrated in Figure 3-20.

Figure 3-20 illustrates the SG4000 and identifies the location of all major return-path

components.

Figure 3-20

SG4000 major return-path components

Return

configuration

board

location #2

Return

configuration

board

location #3

Transmitter

return RF

-20 dB

test point

Transmitter

return

JXP

attenuator

Port

seizure

screw

Return RF

-20 dB

test point

Return

JXP

attenuator

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 107 108

Installation and 1
Operation Manual 1
FDA Compliance 3
Contents 4
Modules 5
Installation 6
Figures 6
Contents v 8
Introduction 10
Figure 1-2 11
SG4000 – open 11
Using this Manual 12
Related Documentation 12
Document Conventions 13
If You Need Help 13
Calling for Repairs 14
Overview 15
Housing 16
Figure 2-3 17
Housing port locations 17
Gaskets 18
Weather gasket 18
(silicone rubber) 18
RF gasket 18
(woven wire) 18
Network Monitoring 19
Options and Accessories 19
Electronics Package 20
Figure 2-5 21
Figure 2-6 22
Configuration 23
Bandpass Frequency 24
Station Slope 24
Bandpass Frequency Splits 25
Level Control 26
Port Entry 27
Figure 2-10 28
Bench Setup and Operation 29
Figure 3-2 30
Forward Path Configuration 31
Forward Split 33
Loss = 8.7 dB 34
Forward Redundant Split 36
PRI) and secondary (SEC) 38
SW1 AUTO position 39
Forward Segmented 2X 40
Figure 3-14 43
SEC RX PRI RX 44
SW2 AUTO position 46
Forward Segmented 4X 47
Loss = 2.7 dB 48
Return Path Configuration 50
Combined Return 52
Loss = 0.9 dB 53
Combined Redundant Return 55
Split Return 58
Split Redundant Return 61
Segmented Return 64
Power Distribution Board 67
Figure 3-37 68
Power distribution board 68
Figure 3-38 69
SG4000 – fuse locations 69
of the housing base. 20 A 70
Power Supply Operation 71
Ensure shunt F1 (30 A): 72
4-2 Modules 74
SG4-R/* Optical Receiver 75
4-4 Modules 76
4-6 Modules 78
Figure 4-4 79
Figure 4-5 79
SG4-* transmitter 79
SG4-IFPT Optical Transmitter 80
SG4-DFBT Optical Transmitter 81
SG4000 RF Module 82
Modules 4-11 83
FSB Board 84
SG4-PS Power Supply 85
Adding Power Supply Modules 86
Embedded Plug-in Module 87
4-16 Modules 88
RF port 1 88
RF port 6 88
Ingress Control 89
Status Monitoring 89
Parameter 90
Fiber Cables 92
Figure 5-3 93
Fiber management tray 93
Figure 5-2 93
5-4 Installation 94
Clamps Clamp 95
5-6 Installation 96
Pedestal Mounting 97
Grounding the SG4000 98
Coaxial Cable Installation 99
Closing the Housing 100
Specifications 101
A-2 Specifications 102
Specifications A-3 103
A-4 Specifications 104
Torque Specifications 105
Abbreviations and Acronyms 106
Abbreviations and Acronyms-2 107
529086-001 108
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Motorola SG4-DRT-2X Instrucciones de operaciones Pagina 50

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