Wi-Fi Related Problems - Mindray T1 Service Manual

6.6.10 Wi-Fi Related Problems

Symptoms
The monitor is frequently off
line or disconnects from the
Wi-Fi network. The
transmission delay is too long.
6-6
Possible Cause
The Wi-Fi signal is unstable in the
operating area.
The monitor's Wi-Fi antenna is
detached from or not properly
connected with the Wi-Fi
module.
Wi-Fi antenna defective
Wi-Fi module defective
Corrective Action
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.
Disassemble the monitor and properly attach the Wi-Fi
antenna.
Replace the Wi-Fi antenna.
Replace the Wi-Fi module.
T1 Service Manual