Mindray cPM 12 - Wi-Fi Related Problems (for Passport 12;Passport 8 Only)

6-7
6.6.11 Wi-Fi Related Problems (For Passport 12/Passport 8 Only)
Symptoms Possible Cause Corrective Action
The monitor is frequently off
line or disconnects from the
Wi-Fi network. The
transmission delay is too
long.
The Wi-Fi signal is unstable in
the operating area.
1. Check if the Mindray recommended wireless AP is used.
If not, verify the AP effective transmission rate meets the
throughput requirements of the connected devices.
2. Verify the AP channel bandwidth is 20 MHz.
3. Verify where the monitor is located, the wireless AP
signal strength is no less than -65 dBm.
4. Verify where the monitor is located, the signal strength
of other Wi-Fi devices at the same channel is no greater
than -85 dBm.
5. Verify where the monitor is located, the signal strength
of other Wi-Fi devices of adjacent channels is no greater
than -50 dBm.
6. Verify that the recommended distance between the
monitor and other non-Wi-Fi wireless devices, including
wireless devices at the frequency of 2.4GHz, cellular
mobile communication networks, microwave ovens,
intercoms, cordless phones and electro-surgical units, is
no less than 20 cm.
7. Verify that no unauthorized devices are connected to
the wireless AP.
The monitor's Wi-Fi antenna is
detached from or not properly
connected with the Wi-Fi
module.
Disassemble the monitor and properly attach the Wi-Fi
antenna.
Wi-Fi antenna defective Replace the Wi-Fi antenna.
Wi-Fi module defective Replace the Wi-Fi module.