User's Manual
Table Of Contents
- PTP 250 User Guide
- Copyrights
- 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 at the PoE end of the drop cable
- Testing the radio link
- Testing link end hardware
- Glossary
Safety and Regulatory
phn-2182_002v000
May 2011
III
Drop cable tester
The drop cable tester must NEVER be used at the ODU end connected to power from
the PoE power supply. It must only be used at the bottom of the mast with a
multimeter. This is because the PoE power supply voltage exceeds the limit allowed in
some countries for safe handling in wet conditions and therefore may create a safety
hazard.
Primary disconnect device
The main power supply is the primary disconnect device.
External cables
Safety may be compromised if outdoor rated cables are not used for connections that
will be exposed to the outdoor environment.
RF exposure near the antenna
Strong radio frequency (RF) fields will be present close to the antenna when the
transmitter is on. Always turn off the power to the ODU before undertaking
maintenance activities in front of the antenna.
Minimum separation distances
Install the ODUs so as to provide and maintain the minimum separation distances from
all persons.
The minimum separation distances for each frequency variant are specified in
Calculated distances and power compliance margins on pag
e 4-25.