Calling Black Box - Black Box 3270 Manual

3. Is the Fiber LED lit?
NO
• Check fiber cables for proper connection.
• Verify that the TX and RX cables on the Repeater
are connected to TX and RX ports, respectively,
on the other device.
• Call Black Box Technical Support at 724-746-5500.
YES
• Call Black Box Technical Support at 724-746-5500.

6.2 Calling Black Box

If you determine that your 3270 Repeater—Fiber is
malfunctioning, do not attempt to alter or repair the
unit. It contains no user-serviceable parts. Contact Black
Box at 724-746-5500.
Before you do, make a record of the history of the
problem. We will be able to provide more efficient and
accurate assistance if you have a complete description,
including:
CHAPTER 6: Troubleshooting
23