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AUTOSENSING ISDN MATRIX SWITCH
Appendix. Troubleshooting
A.1 Calling Black Box
If you determine that your Autosensing ISDN Matrix Switch 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:
• 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.
A.2 Shipping and Packaging
If you need to transport or ship your Autosensing ISDN Matrix Switch:
• Package it carefully. We recommend that you use the original container.
• If you are shipping the Autosensing ISDN Matrix Switch for repair, make sure
you include everything that came in the original package. Before you ship,
contact Black Box to get a Return Authorization (RA) number.
