This troubleshooting guide is designed to help resolve issues with distorted images or non-detection when using a KAYA frame grabber and range extender.

• CoaXPress over Fiber Extender
• Known issues

CoaXPress over Fiber Extender

Parameter	Value
Baud rate	115200
Start bits	1
Stop bits	1
Parity	None
Flow Control	None

1. Connect a USB cable to the range extender unit and establish a Serial Port Connection (download driver from Silabs website).
2. Open a serial emulated terminal (Tera Term is recommended) and configure the serial connection as described in the table above.
3. After camera detection but before stream please perform these commands (for each range extender unit):
   1. Enter command 'admin 1' to be able to debug connection status
      1. Command 'dbgc' to view status of CoaXPress connection
      2. Command 'dbgf' to view status of Fiber connection
4. Start the stream, confirm that image is corrupted and enter 'dbgc' and 'dbgf' commands (2-3 times with 1-2 sec delay) to refresh the status table:
   1. Check column 'C Errors' for 'dbgc' 
   2. Check column 'FEC Corr' for 'dbgf'
5. Send us the output of these steps so we could investigate.

Known issues

Issue: While using 'KY-FEXT-II' device unit with 2 cameras connected using 2 links each at CXP-12 speed, both of the cameras are receiving drop packets and in Vision Point acquistion preview window states "waiting for video data".

Solution: Switch one of the camera to CXP-6 speed to get normal acquisition.

Description: This issue occurs when the bandwidth between the range extender and frame grabber is overburdened. There is a reserved percentage of bandwidth allocated for internal communication between the range extenders and host/devices.