Canon CXDI-80C Service Manual page 145

Reference:
• If the detector recognition was successful, select [Service Tool] → [Connection] → [Detector]
→ [Ferry Static Detector] screen, and the detector whose detector has been recognized will
appear on the Connection tab of this screen.
[When wireless communication trouble has occurred]
Symptom (1): Level 0 appears as the signal strength display on GUI. Alternatively, the signal
strength level is not stable.
Symptom (2): It takes time to display a preview image.
Symptom (3): It takes time to transfer the data of the images taken.
Symptom (4): The three (or two) LEDs of the detector blink.
Suspected causes:
• The X-ray imaging room is not tightly sealed (or the door to this room is open, etc.)
• The distance between the access point and detector is too great.
• A structure is blocking communication between the access point and detector.
• There is a thermal therapy device, laser knife, cordless telephone, etc. near the detector.
• There is interference with the signals (extraneous signals) of another wireless LAN device.
• DR Wireless SYSTEM ( CXDI-70C or CXDI-80C) are installed in two adjacent X-ray imaging
rooms, and the images taken are being transferred by both systems at the same time.
• Trouble with PCA-11nWM board (board inside the detector)
• Trouble with access point
Conduct checks based on the suspected causes listed above or replace the unit.
*1
Boot the notebook computer (incorporating the IEEE 802.11n specification), and check
whether the signals (extraneous signals) of another wireless LAN device are detected. If
another wireless LAN signal is detected, make channel settings based on the Channel setting
*3
guidelines.
* If the wireless communication trouble is not resolved even when the channel setting has been
changed, the following information must be gathered without fail. It is recommended that this
information be recorded as the installation history.
• Wireless environment inside X-ray imaging room (existing wireless LAN environment)
• Signals of other wireless LAN devices detected by the notebook computer inside the X-ray
imaging room
• Surrounding environment (adjacent rooms, corridors, etc.)
• Whether or not DR Wireless SYSTEM are installed in adjacent rooms
• Information of settings established by AP/LNK configuration tool (including the setting
information of any DR Wireless SYSTEM installed in an adjacent room)
• Frequency at which the wireless communication trouble occurs
*2
If the wireless communication trouble has been resolved by replacing the access point, replace
the new unit with the original access point to verify that the trouble recurs, and if it does recur,
move on to the secondary response.
Reference : When there is interference with strong signals (extraneous signals), it may be a
cases where the RX_REQ signal from the X-ray generator cannot be generated so
X-ray exposure is disabled.
6. Troubleshooting
*2
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*1
*1