Black Box MT256A-F, MT257A, G.703 Adapters and Balun Mate II Troubleshooting, Calling Black Box

CHAPTER 5: Troubleshooting

5.Troubleshooting

5.1Calling Black Box

If your G.703 Adapter or Balun Mate II seems to be malfunctioning, do not attempt to alter or repair it. It contains no user-serviceable parts. Call Black Box Technical Support at 724-746-5500; the problem might be solvable over the phone.

Before you call, 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:

•the nature and duration of the problem;

•when the problem occurs;

•the components involved in the problem;

•any particular application that, when used, appears to create the problem or make it worse; and

•the results of any testing you might have already done.

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