NEC PASOLINK - Frame Grounding

110 pages

To Next Page

To Previous Page

NEC PASOLINK installation procedure

January 2002

Frame Grounding:

In mounting the IDU and odu, perform frame groungding.

Location of frame grounding in each of IDU and ODU is shown below:

Main Page

System Configuration3
System Performance6
Equipment Performance8
Performance Characteristics of IDU8
Radio Frequency Assignment12
Alarm and Control13
Alarm Indication and Reporting13
IDU Description and Operation15
Equipment Composition15
Functional Operation19
Functional Block Diagram of IDU20
Functional Block Diagram of IDU in 1+1 System23
Transmit Line Equalization27
Bipolar-To-Unipolar Code Conversion27
Multiplexing27
Scrambling28
Differential Encoding28
Binary Combinations28
4-Phase Shift Keying Modulation29
Typical Operation of Differential Encoding Circuit29
Orderwire Signal Modulation30
EOW and Alarm Signal Demodulation30
PSK Modulation30
Main Signal Demodulation31
Differential Decoding31
Receive Digital Processing32
Demultiplexing32
Receive Line Equalization32
Unipolar-To-Bipolar Code Conversion32
Analog Service Channel Signal Transmission33
ASC Transmit Side33
ASC Receive Side33
9.6 K Digital Service Channel Transmission33
Alarm Signal Transmission34
DSC Transmit Side34
DSC Receive Side34
WS Transmit Side/Ws Receive Side34
64 K Digital Service Channel Transmission35
Service Channel Transmission of G.703 Codirectional35
Service Channel Transmission of V.1135
LAN Signal Transmission36
Transmit Side36
Receive Side36
Alarm and Control Functions36
Interface Terminals and Jacks in 1+0 System37
Interface Terminals and Jacks of 1+1 System45
Controls, Indicators and Test Jacks54
IDU Indicator54
ODU Indicator54
MAINT Indicator55
100M Indicator55
LINK/ACT Indicator55
COLX/DUPLEX Indicator55
TX ALM 1 Indicator (Only for 1+1 System)56
TX ALM 2 Indicator (Only for 1+1 System)56
RX ALM 1 Indicator (Only for 1+1 System)57
RX ALM 2 Indicator (Only for 1+1 System)57
TX OPR 1 Indicator (Only for 1+1 System)57
Controls, Indicators and Test Jacks of the IDU58
TX OPR 2 Indicator (Only for 1+1 System)58
RX OPR 1/2 Indicator (Only for 1+1 System)58
OPR SEL No. 1-AUTO-No. 2 Switch (Only for 1+1 System)58
Odu Description and Operation59
Component Module Arrangement59
Transmitter Section60
Functional Block Diagram of the ODU61
Receiver Section62
Alarm and Control Section62
Operation64
Interface Terminals and Jacks64
Controls, Indicators and Test Jacks of OW/RX LEV Monitor67
Installation Procedure69
Preparation for Installation69
Equipment and Materials List70
Before Going to Site Check List71
Installation Flow Chart73
Packing List for IDU, ODU, and ANT74
IDU Mounting75
Mounting of ODU and ANT76
ODU Demounting76
Frame Grounding77
Cable Termination78
Terminating Coaxial (Baseband Signal) Cable with BNC Connector79
Terminating Coaxial (if Signal) Cables with N-P Connector80
Terminating Power Supply Cables with Molex Connector82
Cable and Terminal Connections84
Waterproof Protection85
Equipment Start-Up and Shut-Down86
Equipment Setting and Monitoring87
Controls of IDU88
Alarm and Status Monitoring of IDU and ODU101
Monitoring the ODU108

NEC PASOLINK - Frame Grounding

Table of Contents

Related product manuals