BeneVision N17 - Network Verification; Tools and Resources; Wi-Fi Signal Calibration

3-4
No. Item Content of Requirements
frequently. If the hospital network supports WPA2-Enterprise, using WPA2-Enterprise can
achieve higher security.
4 Dedicated VLAN The patient monitors need to work on a dedicated VLAN.
Using VLAN can minimize Broadcast or multicast data which can affect patient monitors’
stability.
Important settings
1 DHCP The DHCP server reserves a sufficient number of IP addresses to ensure that the patient
monitors can obtain an IP address.
2 IGMP snooping If patient monitors use multicast, enable IGMP snooping
3 Multicas If patient monitors use multicast, the multicast function of network should be enabled.
4 Beacon & DTIM AP DTIM = 1, Beacon = 100ms
5 Service port
Refer to Mindray Patient Monitoring Network Whitepaper; patient monitors need some
certain TCP/UDP ports to be opened
3.4 Network Verification
3.4.1 Tools and Resources
 Laptop computer, where Windows 7 or later version is installed and wireless network card is equipped. We
recommended laptop configured with Intel Centrino Wireless-N adapter. If your laptop is configured with some
other wireless adapter, please make sure the adapter has a high degree of accuracy.
 Wireless network survey tool, we suggest to use professional survey tool such as tamograph, Wirelessmon or other
professional network survey tool.
 Professional network engineer.
NOTE
 The personnel who implement the Wi-Fi network survey should be well trained about Wi-Fi. If
professional network engineers are not available, please ask some third party for help.
3.4.2 Wi-Fi Signal Calibration
Before a wireless network survey tool (running on laptop computer) is used to test network coverage, follow this
procedure to calibrate the RSSI of wireless network survey tool with a patient monitor
1. Keep the patient monitor and wireless network survey tool close. The distance between them is not greater than
30cm and the distance from human body is above 50 cm.
2. Move the patient monitor and Wireless network survey tool at the same time (keep the previous distance).
3. When the patient monitor reads the following RSSI values: -50 dBm, -60 dBm, -70 dBm and -80 dBm, record the RSSI
values read by Wireless network survey tool.
4. Calibrate the RSSI of Wireless network survey tool to patient monitor when do site survey (the RSSI of Patient
monitor is the benchmark to wireless coverage).