Wireless Edge Services zl Module Release Notes WT.01.28

Release Notes:
Version WT.01.28 Software
for the ProCurve Wireless Edge Services zl Module (J9051A) and the
ProCurve Redundant Wireless Services zl Module (J9052A)
These release notes include information on the following:
■ Downloading software and documentation from the Web (page 1)
■ Important Support Notes and Clarifications for each release (page 5)
■ A listing of enhancements in each release (page 19)
■ A listing of software fixes included in each release (page 22)
■ Known software issues and limitations (page 30)
Changes to Dynamic Frequency Selection (DFS) in the 5 GHz Band
Depending on your country/region settings on this product, the available channels in the 5 GHz band may
have changed.
Customers in the U.S.
Effective July 20, 2007, new FCC regulations on the use of the 5GHz band, the band used by radios supporting the IEEE
802.11a standard, prohibit the sale of radios not meeting the new specifications. To comply with these new requirements,
several channels in the ProCurve Radio Ports 220 (J9005A), and 230 (J9006A) are disabled when using this product (zl
Module).
This product disables channels 52, 56, 60, 64 (5.25-5.35 GHz) in the U.S. These channels remain available for use in other
countries except as noted below.
Customers in the European Union and Selected Countries/Regions*
In the European Union and selected countries/regions*, ProCurve Wireless Edge Services Modules, Access Points and
Radio Ports purchased after April 1, 2008, are subject to new radar interference requirements that limit the available
channels in the 5 GHz band. To comply with these new requirements, the operating channels impacted by this change
have been removed.
The factory-installed software version that ships with your product limits the available 5 GHz channels to 36, 40, 44 and
48 (5.150 – 5.250 GHz).
* Other countries/regions that apply include South Africa, Turkey, Morocco, Croatia.
Software Update Notice
Updating from Version WT.01.03 to any newer version
When updating a module that is in a redundancy group, the module may fail to rejoin the group if a non-
default Heartbeat Period was configured for the group. See “Known software issues and limitations” (page
30).