Sharp VC-488NS Wartungshandbuch PDF herunterladen (Seite 5)

Contents

Chapter 1 - System Description...............................................................1-1

Introduction ........................................................................................... 1-2

Command Channel and Control-Display-Unit (CDU) Ports ........................ 1-3

Alvarion Hardware .................................................................................. 1-4

GPS Receiver : Specification ......................................................................... 1-4

Input Power.................................................................................................. 1-4

Output Specification .................................................................................... 1-5

1PPS ......................................................................................................... 1-5

2.048 MHz................................................................................................. 1-6

Time of Day ............................................................................................... 1-6

LEDs ......................................................................................................... 1-7

Input / Output Message Format................................................................... 1-7

Time of Day Output................................................................................... 1-7

Electrical Safety ........................................................................................... 1-7

Chapter 2 - Installation .............................................................................2-1

Installation............................................................................................. 2-2

Antenna Mounting ....................................................................................... 2-2

Lightning Protection Considerations............................................................. 2-4

Protection Against Lightning......................................................................... 2-6

At the Antenna .......................................................................................... 2-6

At the GPS Receiver Unit ........................................................................... 2-8

The Lightning Arrestor ............................................................................... 2-10

Detailed Installation procedure................................................................... 2-11

Installing the Surge Protection................................................................. 2-11

Connecting the N-type to TNC adaptor .................................................... 2-11

Connecting the Grounding Cable............................................................. 2-12

Connecting the “Equipment” side ............................................................ 2-12

Connecting the Surge side....................................................................... 2-14

Connection Diagram................................................................................ 2-15

Mounting the GPS Receiver ........................................................................ 2-16

Mounting in Equipment Cabinets ............................................................ 2-16

1 2 3 4 5 6 7 8 9 10 ... 66 67

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Sharp VC-488NS Wartungshandbuch Seite 5