Installing the TX 4000 board
System requirements
To install and use the TX 4000 board, your system must have the following
components:
• An available PCI bus slot.
• At least 8 MB of memory (excluding operating system requirements).
• NaturalAccess software development environment.
• NaturalAccess Signaling Software.
• A chassis with 3.3 V of supplied power to provide a minimum of 6.5 A per TX
4000 board.
• An uninterruptible power supply (UPS). Although a UPS is not strictly
required, it is strongly recommended for increased system reliability.
• An H.100 bus connector cable if you are connecting to other H.100 boards.
• Cables to connect the board interfaces to T1 or E1 lines.
• A crossover Ethernet cable if you are connecting two TX 4000 boards for
redundancy support.
• Straight through Ethernet cables if you are connecting to an Ethernet hub or
switch in a SIGTRAN network.
Warning:
Important safety notes for telephony connections:
• Allow only qualified technical personnel to install this board and the associated
telephone wiring.
• Make sure the PC chassis is grounded through the power cord or by other means before
connecting the telephone line.
• If your system requires an external power supply, make sure it is grounded through the
power cord or by other means.
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations.
• Telephone companies provide primary lightning protection for their telephone lines. If
your site connects to private lines that leave the building, make sure that external
protection is provided.
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