User's Manual

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5.4.3 Radar Avoidance, i-DFS and Variable (Narrow) Bandwidth Operation
PTP 600 Series bridges do not support operation with 5, 10 or 15 MHz channel bandwidth in
regions where radar avoidance is enabled.
NOTE: Radar avoidance requirements in the 5.4GHz band in the EU is detailed in
specification EN 301-893 version 1.3.1 and in the US in the specification FCC part 15.437.
Radar avoidance at 5.8GHz is applicable to EU operation and the requirements are currently
as defined in EN 301 893 version 1.3.1.
5.5 2.5GHz Specific Frequency Planning Considerations
The supported 2.5GHz frequency range is split into three bands, according to the bands
specified in the FCC BRS-EBS Post-Transition Band plan:
• Lower: 2496 MHz to 2572 MHz with a 5.5MHz channel raster (76 MHz total).
• Middle: 2572 MHz to 2614 MHz with a 6 MHz channel raster (42 MHz total).
• Upper: 2618 MHz to 2690 MHz with a 5.5 MHz channel raster (76 MHz total).
NOTE: When configured for 2.5 GHz operation, the unit will only operate in Fixed Frequency
mode, and the user is unable to select i-DFS.
NOTE: When configured for 2.5 GHz operation, the unit will default to TDM traffic mode,
rather than the IP Traffic default.
5.5.1 Variable Channel Bandwidth Operation
Channel bandwidths of 5, 10, 15 and 30MHz
9F
10
are supported on the 05-00 software release
for both Full and Lite versions of the PTP 600.
Configuration of the variable bandwidth operation must be symmetric, i.e. the Transmit and
receive channels must use identical channel bandwidths.
NOTE: Hence, narrow bandwidth modes may not be used in regions where Radar Avoidance
is mandatory.
10
30MHz channel widths are available where allowed by local regulations and subject to some
restrictions on channel choice.