4
The Information Company
1 Preface
1.1 About this guide
This guide presents a wide range of technical information and procedures for using the
TD2u. It is divided into the following chapters.
•
Overview: Provides general information about the TD2u as well as unpacking,
starting up, and navigating the TD2u menus and indicators.
•
Setting up the TD2u: Provides system overview information about the TD2u as well
as procedures for configuring and connecting the TD2u.
•
Using the TD2u: Provides detailed information and procedures for using the TD2u.
•
Troubleshooting and Support: Provides a brief list of potential problems and
solutions. For more complete and current troubleshooting information as well as
answers to fre-quently asked questions (FAQ), visit the Tableau web site at
1.2 Conventions used in this guide
The TD2u has two soft keys placed immediately under the LCD display. The bottom line
of the display shows text indicating the current function for each of the two soft keys. In
this guide, soft key labels are indicated with square brackets. For example,
[Select]
indicates that Select is displayed above a soft key on the display.
1.3 Disk capacity and transfer rate
measurement conventions
The computer industry generally adheres to two different conventions for the definitions
of the terms megabyte (MB) and gigabyte (GB). For computer RAM, 1 MB is defined as
220 = 1,048,576 bytes and 1 GB is defined as 230 = 1,073,741,824 bytes. For disk
storage, 1 MB is defined as 106 = 1,000,000 bytes and 1 GB is defined as 109 =
1,000,000,000 bytes. These two conventions are known as powers of two and powers of
ten respectively. Microsoft deviates from the hard disk capacity measurement convention
and uses the powers of two convention for its operating systems.
Tableau reports disk capacities and transfer rates according to the industry standard
powers of ten convention. In TD2u screens, reports, and documentation, a 4 GB hard
disk stores up to 4,000,000,000 bytes; a hard disk with a 150 MB/sec transfer rate
transfers 150,000,000 bytes per second.
Note:
For a complete list of changes for a given TD2u firmware release, see the release
notes for the latest TFU version on the Tableau products web page at