BeneVision N17 - Network Coverage Assessment with Patient Monitors

3-7
No. Item Content of Requirements Verification Method Check Results
2 IGMP
snooping
If patient monitors use multicast,
enable IGMP snooping
Check with hospital IT if this
requirement is met or not.
3 Multicast If patient monitors use multicast.
The multicast function of network
should be enabled.
Check with hospital IT if this
requirement is met or not.
4 Beacon &
DTIM
AP DTIM = 1, Beacon = 100ms Check with hospital IT if this
requirement is met or not.
5 Service
port
Refer to Mindray Patient Monitoring
Network Whitepaper; patient
monitors need some certain
TCP/UDP ports to be opened
Check with hospital IT if this
requirement is met or not.
3.5 Network Coverage Assessment with Patient Monitors
To confirm coverage, perform coverage test in the areas where patients often go.
Check whether coverage meets requirements by observing the signal strength (RSSI) showing on Patient monitor, and
by observing whether an offline event occurs.
When necessary, adjust locations of APs or add APs to ensure the overage effect.Do as follows:
1. Set the patient monitor to access to CMS.
2. Ping the patient monitor on the CMS (input “ping –t –l 32 –w 1500 IP address” in window CLI (Ping the patient
monitor persistently. The packet is 32 bytes and the timeout of reply is 1500ms). After ten minutes, input “ctrl + c”
(finish the ping), make sure that the mean delay is less than 250ms and the packet lost rate shall be less than 1%.
3. Hold the patient monitor with a hand and avoid blocking by people. Walk in the expected coverage areas, for
example, all corners of the ward, toilet, smoking area, corridor, and elevator.
4. Offline event time should be less than 10% of patient monitor roaming times; the RSSI value displayed on the
patient monitor is not lower than -65dBm.
5. If the signal strength is lower than -65dBm during walking, stop at the location and observe for 30s. If the RSSI value
is not lower than -65 dB in more than 66 percent of the time, the coverage requirement is met.
Table 3-3 Patient Monitor Installation Confirmation Table
Test or Observation Item Result (Pass, Fail or NA)
Ping the patient monitor from the CMS and make sure that the mean delay is less
than 250 ms and the packet lost rate shall be less than 1%.
Hold the patient monitor and walk in the scope of different APs. After walking
through the whole expected coverage area, observe continuous waveform on the
CMS. Offline event times should be less than 10% of patient monitor roaming
times.
In the location where coverage is the poorest, signal strength displayed on the
screen is higher than -65dBm.