
Appendix
156
The ACCU-CHEK Inform II meter uses a burst-like
commu nication protocol that will only consume
bandwidth 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 ACCU-CHEK Inform II 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
net work, it is recommended that a WLAN site survey be
per formed. The goal of a WLAN site survey is to ensure
that Access Points will provide enough coverage and
perfor mance to support any new radio frequency (RF)
applica tion or device. The survey will also detail RF
signals, including all existing WLANs along with any
competing RF signals and interferences (building
structure related and other wireless equipment / devices).
As part of an RF implementation of the ACCU-CHEK
InformII system, it is recommended that at minimum a
base unit be hard wired via an RJ-45 network jack per
oor. A net worked base unit provides redundancy if a
wireless net work that the ACCU-CHEK Inform II meter is
using malfunctions or loses service. If the ACCU-CHEK
Inform II meter with RF is used in an area with low signal
or inter ferences, 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.
The ACCU-CHEK Inform II meter uses a wireless (RF)
card in compact ash (CF) card format to implement the
WLAN functionality. Depending on the system
conguration that you purchased, the meter will either
already be equipped with a WLAN card (catalog no.
05060303001) or you may purchase the card later
(catalog no. 05060311001).
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