Mindray VS 8A, Operator'S Manual

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A - 7
A.5.9.2 Resistance to Wireless Interference
The distance between the interfering devices and the monitor is greater than 20 cm. A
Wi-Fi interference (no greater than -85 dBm) in the same channel and a Wi-Fi
interference (no greater than -50 dBm) in an adjacent channel are presented
synchronously. The interfering devices include 2.4 GHz wireless devices, cellular mobile
networks, microwave ovens, intercoms, cordless phones, and ESU equipment. The
interfering devices do not include Wi-Fi devices.
The monitoring network must support the following requirements:
■
The total delay of data transmission from the monitor to the CMS: ≤ 2 seconds.
■ The delay for monitor-related settings configured at the CMS to be effective: ≤ 2
seconds.
A.5.9.3 Wi-Fi Network Stability
There is no communication data loss when the monitor moves at a speed not higher
than 3.75 m/s in a 15 meter obstacle-free linear range.
16 monitors are connected to the same AP and each roams for 30 times, of which at least
3 monitors roam simultaneously. The ratio of the communication data loss on the CMS
from any monitor does not exceed 0.1% over a 24-hour period.
A.5.9.4 Line of Sight Distance
The line of sight distance between the monitor and the AP is no less than 50 meters.
A.5.10 Blue Tooth Specification
A.5.11 Bluetooth Performance Specifications
WARNING
•
Keep the monitor away from interference sources.
•
Do not use Bluetooth nodes to perform realtime vital signs monitoring.
Protocol Bluetooth 5
Modulation mode GFSK
Operating frequency 2402 ~ 2480MHz
Wireless data rate 2Mbps, 1Mbps, 125kbps
Output power ≤ 8 dBm ± 4 dB
Data security AES128