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Appendix
161
B Appendix
Option: Wireless network (WLAN)
Preliminary note
Appendix B has been developed to explain the wireless
communication principles of the ACCU-CHEK Inform II
system
1
and to help your facility’s information technology/
management team(s) in effectively deploying the
ACCU-CHEK Inform II system on your wireless network.
Whether your meter has wireless capability or not depends
on the system configuration that you purchased.
Background
The ACCU-CHEK Inform II meter can only be configured
through a data management system to communicate
wirelessly. The data management system is also used to
set-up and configure the meter to connect to one hospi tal
specific Wireless Local Area Network (WLAN
2
). WLANs
use electromagnetic waves in the 2.4 and/or 5.0 GHz
fre quency range to wirelessly transmit data
3
. The
ACCU-CHEK Inform II system adheres to IEEE Standard
802.11b (2.4 GHz range)
4
. The system is backwards
compatible to 802.11b. During wireless communication to
an Access Point (AP), the ACCU-CHEK Inform II meter
recog nizes the existent AP WLAN protocol configuration
(802.11b or 802.11g) and automatically transmits data
using the appropriate communication protocol
5
.
1
The ACCU-CHEK Inform II system is certified by the Wi-Fi
Alliance.
2
WLAN is also commonly referred to as wireless LAN or Wi-Fi.
3
For the wireless functionality to work properly, the wireless
module must first be configured by your system administrator.
4
While the ACCU-CHEK Inform II system adheres to the 802.11g
standard, it uses only channels 1-11. Channels 12-14 are not used
by the system.
5
WLANs are organized in cells. A typical WLAN cell consists of
Access Point(s) that are connected to the (wired) Local Area
Network and one or more clients, e.g., ACCU-CHEK Inform II
meters along with other clients such as portable computers.
Summary of Contents for Inform 2
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