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RF specific functionalities and effective performance claims
The cobas h 232 system offers the option of wireless network connectivity (WLAN/Wi-Fi). If you
purchase a system with this option, the WLAN function is enabled during production.
This module can only be configured by a data management system (DMS), which activates the
meter’s wireless communication and data transfer capabilities. Wireless connectivity can help to
ensure that updates to information in the DMS are sent immediately to all networked meters.
Communication takes place when the meter is idle, but will be interrupted during the perfor-
mance of a test.
Meters with an integrated and activated wireless option use the base unit for recharging and/or
as a redundant communication option to exchange data with the DMS.
The meter also has to be docked if the hospital changes security protocols. When this change
occurs, it may lock out all meters until docked and reconfigured with the new protocol.
As described above, the cobas h 232 meter supports the 802.11g standard. This translates into
the following RF specific performance claims:
■ The cobas h 232 meter is capable of transferring to a suitable DMS, via WLAN, a data
set of up to 1000 result records, 100 reagent records, and 500 operator ID records in less
than 15 minutes, when operated in a typical WLAN environment (correct WLAN admin-
istration, typical population of other clients present, any of the supported security models
enabled).
■ A cobas h 232 meter with wireless connectivity enabled will communicate results after
every test or when the meter is idle; it will automatically attempt to communicate with the
DMS every 10 minutes. In line with the industry communication standard POCT1-A, the
DMS must acknowledge the meter’s request for connection and actively query for the
result. Only upon receipt of this DMS query, the meter will send the result. Hence the
effective time for transmitting results depends on infrastructure, DMS workload, etc.
Once the DMS sends a query, however, the meter will respond within a few seconds.