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SYNCHRONOUS MODEM ELIMINATORS SME–422, –V.35, –530, –X.21
5.1 Calling Black Box
If you determine that your SME is malfunctioning,
do not attempt to alter or
repair the unit.
Contact Black Box Technical Support at 724-746-5500. The
problem may be solvable over the phone.
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:
• 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.
5.2 Shipping and Packaging
If you need to transport or ship your SME:
• Package it carefully. We recommend that you use the original container.
• If you are shipping the SME for repair, include its power supply and (if
it’s an SME–X.21 model) its adapter cables. If you are returning the SME,
make sure you include everything you received with the unit. Before you
ship, contact us to get a Return Materials Authorization (RMA) number.
5. Troubleshooting
