Black Box IS300AE, Руководство пользователя

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ISDN TA/V
Your ISDN TA/V has been designed to give you reliable, trouble-free use.
However, if you encounter any problems, this chapter will assist you in
diagnosing and overcoming the difficulty.
• Positioning Your ISDN TA/V
Where you position your ISDN TA/V can affect its operation, and therefore
the following site-selection guidelines should be followed to enhance its
performance:
• The ISDN TA/V should be installed in a clean area that is free from dust
and extreme temperatures.
• Do not place anything on top of, or within 15 centimetres of the back
of your ISDN TA/V.
• Locate the unit as close to your computer as is practical, and within
1.83 metres of a grounded AC power outlet.
• To ensure adequate cooling, make sure that there is at least a 3-
centimetre gap between the sides of your ISDN TA/V and any
other object.
• Do not place your ISDN TA/V on its side.
• If You Cannot Connect the ISDN TA/V to the Computer
First verify that your computer is equipped with an available serial port,
otherwise contact your computer supplier. If the ISDN TA/V-to-computer
cable will not connect to the computer’s port, contact your equipment
supplier and verify that you are using the correct cable.
• If the POWER LED Does Not Light
Verify the connection of the power lead to the ISDN TA/V and the mains
supply. Verify that the unit’s on/off switch is turned on, and if the power-
supply point has a similar switch make sure this is also turned on. You can also
check your power-supply socket by plugging the ISDN TA/V into an alternate
socket to see if it works there. Finally check that the fuse within the plug has
not blown, and that it is in good working order.
8. Troubleshooting