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 Wireless operation
phn-2182_003v004 (Oct 2011)
UNDER DEVELOPMENT
1-21
Equipment supplied to the USA can ONLY be set to operate with a Country Code which is
fully compatible with FCC Rules.
Using frequency planning
Networks will benefit from the use of fixed channel allocations if (a) the network consists
of multiple PTP links, and (b) RF interference predominantly arises from equipment in the
same network.
Frequency planning is the exercise of assigning operating channels to PTP units so as to
minimize RF interference between links. Frequency planning must consider interference
from any PTP unit to any other PTP unit in the network. Low levels of interference
normally allow for stable operation and high link capacity.
The frequency planning task is made more straightforward by use of the following
techniques:
• Using several different channels
• Separating units located on the same mast
• Using high performance (directional) external antennas
For help with planning networks, refer to Chapter 2: Planning considerations,
or contact a
Motorola distributor or re-seller.