3Com NBX, Installation Manual

Page: 107 / 248

Connecting Cards and Devices 107
If you cannot seat the card with light pressure, remove it and check for
obstructions and alignment problems.
3 Wait at least 3 minutes for the card to initialize.
4 Use the Auto Discover feature to configure the digital line card. The Auto
Discover feature finds each port on each digital line card and assigns port
extensions.
Use the Auto Discover feature to configure telephones and analog line
cards
before you enable Auto Discover for digital line cards. For more
information about the Auto Discover feature, see “Using Auto Discover
for Initial System Configuration” on page 112 .
Connecting Analog
Terminal Cards
You can install cards with the power on to the chassis. To connect and
configure analog terminal cards:
1 Remove one of the blank faceplates from the chassis.
2 Install the analog terminal card securely.
Verify that the edges of the card ride in the chassis guide slots, and then
slide the card in until you feel slight resistance. Press firmly on both sides
of the front of the card until you feel that it is seated in the connector,
and then tighten the knurled knobs.
If you cannot seat the card with light pressure, remove it and check for
obstructions.
3 Wait at least 2 minutes for the card to initialize.
4 Use the Auto Discover feature to configure the analog terminal card. For
more information about the Auto Discover feature, see
“Using
Auto Discover for Initial System Configuration” on page 112 .
The Auto Discover process finds each port on each Analog Terminal Card
and assigns port extensions.
Connecting an
Analog Terminal
Adapter
If you are installing one or more Analog Terminal Adapters (ATA), install
them after installing chassis cards.
To install an ATA:
1 Connect the analog telephone or fax machine to the analog port on the
ATA. The analog port on a 3C10120B ATA has a picture of an analog
telephone beside it. See
Figure 30 . The analog port on a 3C10400 or the