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The loss of signal or access to bandwidth of one particular client may vary depending on one or
more of the following situations: the type and number of other clients, the performance of the
Access Point, the presence of electromagnetic disturbances, and other potential interfering
factors, e.g., concrete walls.
The cobas h 232 meter uses a burst-like communication protocol that will only consume band-
width if there is actually data to be transferred. Compared to other applications, such as Voice
over Internet Protocol (VoIP) or multi-media applications, the meter’s bandwidth consumption is
minimal. If the WLAN that the cobas h 232 meter seeks to connect to is degraded, the meter
design minimizes the impact on functionality.
Technical implementation
Prior to connecting any wireless device to a wireless network, it is recommended that a WLAN
site survey be performed. The goal of a WLAN site survey is to ensure that Access Points will pro-
vide enough coverage and performance to support any new radio frequency (RF) application or
device. The survey will also detail RF signals, including all existing WLANs along with any com-
peting RF signals and interferences (building structure related and other wireless equipment /
devices).
As part of an RF implementation of the cobas h 232 system, it is recommended that at minimum
one base unit be hard wired per floor. A networked base unit provides redundancy if a wireless
network malfunctions or loses service. If the cobas h 232 meter with RF is used in an area with
low signal or interferences, it is recommended to install a connected base unit for redundancy.
The redundancy of the connected base unit allows immediate transmission of patient results
when the meter is docked.
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