User's Guide
Table Of Contents
- PTP 250 User Guide
- Safety and regulatory information
- Contents
- List of Figures
- List of Tables
- About This User Guide
- Chapter 1: Product description
- Chapter 2: Planning considerations
- Chapter 3: Legal information
- Chapter 4: Reference information
- Chapter 5: Installation
- Chapter 6: Configuration and alignment
- Chapter 7: Operation
- Chapter 8: Troubleshooting
- Testing link end hardware
- Testing when PoE LEDs do not illuminate correctly
- Testing after a lightning strike
- Test flowcharts
- AC LED is off
- AC LED is flashing
- PORT LED is off
- PORT LED is flashing
- Test Ethernet packet errors reported by ODU
- Test Ethernet packet errors reported by managed switch or router
- Test ping packet loss
- Test resistance in the ODU cable
- Testing the radio link
- Testing link end hardware
- Glossary
PTP 250 User Guide Grounding and lightning protection
phn-2182_003v004 (Oct 2011)
UNDER DEVELOPMENT
2-19
Figure 2-3 Grounding and lightning protection on mast or tower
LPU
Tower
ground bar
External
ground bar
Master
ground bar
Ground ring
Outdoor CAT5e cable: gel-filled,
shielded with copper-plated steel
First point of contact with tower
Mid-point of tower
Bottom of tower
CAT5e cable: foil or braid screened,
with screened connectors
PoE Injector
Equipment building
Network
switch
ODU
PTP 250 ground cable
Tower/building ground system