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Page 86
Chapter 6: Troubleshooting
6.3 USB-HID
CPU module, rear view
CON module, rear view
Figure 6-2. USB-HID module.
Table 6-3. USB-HID troubleshooting.
Diagnosis
Possible Reason
Measure
Keyboard LEDs
Shift
and
Scroll
are blinking
Keyboard in command mode
• Press <Esc> to leave command mode
CPU unit: LED 3 green or violet
No USB connection to CPU
• Check connection of USB cable to CPU; select another USB
port if necessary.
• Remove USB and power cable and restart CPU. Connect
power cable first.
CON unit: LED 3 green or violet
Problems with USB connection
• Check connection of USB cable to USB-HID device.
• Remove DVI and power cable and restart CON unit. Connect
power cable first.
USB device without function
No USB-HID device
• Connect USB-HID device.
USB-HID device is not supported
• Contact Black Box Technical Support at 724-746-5500 or
[email protected] if necessary.
6.4 Serial Connection
Table 6-4. Serial connection upgrade module troubleshooting.
Diagnosis
Possible Reason
Measure
Serial device not operational
Settings of the serial interface
• Check baud rate and general settings.
No serial connection to CPU
• Check connection via serial cable.
No serial connection to end device (for example,
touchscreen, keyboard)
• Connect serial end device and switch it on.
• Check connection via serial cable.
Touchscreen not operational
Hardware handshake
• Adjust serial interface to X-ON/X-OFF software handshake.
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