3-3
Action Output Requirements Template
A0 Wireless Network
requirements for Mindray
patient monitors
Determine requirements for deployment
of the wireless network for Mindray
patient monitors.
Wireless Network Requirement Table in
3.3 Network Requirements
A2 Network design document,
Bill of material
/
/
A5 Installation confirmation
report
Confirm the actual operation of the
Mindray patient monitors after
installation.
Patient Monitor Installation Confirmation
Table in 3.5 Network Coverage
Assessment with Patient Monitors
NOTE
Network design and deployment project needs much more complex process, you need professional IT
engneer’s help to finish the job. This document does not include these contents.
3.3 Network Requirements
The Wireless infrastructure needs to meet the following requirements.
Table 3-1 Wireless Network Requirement Table
No. Item Content of Requirements
Wireless coverage requirements
1 Received signal
strength (RSSI)
≥-65 dBm
RSSI is the value displayed on the patient monitor
2 Co-channel
interference
≤-20dB (co-channel interference AP’s RSSI shall be at least 20 dB lower than the AP that
patient monitor uses.)
3 Ping delay The mean delay of PC or cell phone is smaller than 100ms and The packet lost rate shall be less
than 1%.
Requirements of AP capability
1 AP
capability
1． The anticipated number of devices connecting to one AP must be lower than 50% of the AP
capability. For example, In the coverage of one AP, the typical number of devices connected to
this AP is 16, then the announced number of devices that can connect to AP simultaneously
must be more than 32.
2． The AP Can create several SSIDs.
2 Device
density
The maximum number of devices connected to one AP simultaneously is 16 (including patient
monitors and other devices).
WLAN features
1 AP channel
width
Set the channel width to 20MHz, don’t use HT40 or even HT80.
2 802.11
protocol
WLAN can't use protocols that Mindray patient monitor can’t support, e.g 802.11ac
3 Security mode WLAN can't use Security mode that Mindray patient monitor can’t support.
Using WPA2-Enterprise or WPA2-PSK is recommended. Use a long password and change it
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