Black Box JPM1105A, Manual, Page: 15 / 16

12
12-PORT BASIC TELEPHONE MODULE
4. Troubleshooting
4.1 Calling Black Box
If you determine that your 12-Port Basic Telephone
Module 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.