User's Manual

ROAMEO System Troubleshooting, Accessories and Replacements 151
Bosch Security Systems, Inc.
Technical Manual
F.01U.306.750
Rev. 01
Beltpack is
having audio
dropouts
• Weak RF connection to the
access point that covers this
area.
• To improve RF coverage access points may need to be
moved or additional access points may need to be added.
For more information, see “Perform a Site Survey” on page 46.
• The DECT environment is limited to a set number of RF
carriers as well as a set number of slots on each carrier.
Other DECT devices, such as wireless phones, other
intercom systems, etc. can effect the RF bandwidth
availability for the beltpack. Powering down extra devices
can improve RF accessibility.
• DECT environment is
saturated with DECT
devices, not sufficient
bandwidth for more DECT
devices.
• An access point set to G.722 (wideband) supports up to five
beltpacks maximum, while an access point set to G.726
(narrowband) supports up to 10 beltpacks maximum.
Depending on the number of beltpacks running versus the
number of access points with open slots, additional access
points may be needed. Power down other beltpacks in the
area to test for system improvement. If improvement is
seen, additional access points are needed in the area to
provide more open slots for additional beltpacks.
• The DECT connection is
dropping.
• The access point RF coverage area may be poor. Perform a
site survey to determine the coverage area strength.
Relocating access points or adding access points to the
coverage area may be needed to improve the coverage area.
For more information, see “Perform a Site Survey” on page 46.
• Matrix connection is
dropping.
• If there is no DECT RF connection, the connection to the
Matrix cannot be established. Verify the DECT RF
connection is good.
• An intermittent connection from the access point to the
Matrix may be the reason the Matrix cannot establish a
connection. Verify the matrix connection is good and is not
intermittently rebooting.
• The overlap of access point
is not adequate enough to
provide error-free hand-offs.
• For an error-free hand offs between access points, the
overlap coverage between access points must a good
enough to allow error-free handshaking of the beltpack to
the old access point and the new access point.
• For consideration, Ethernet traffic on a shared network can
cause bandwidth overloading. Take care to plan for
bandwidth coverage for the number of beltpacks being
used.
For more information, see Figure 6 on page 27 or “Perform a
Site Survey” on page 46.
Issue Possible Cause Solution