NCR 7454, User Manual, Page: 29 / 244

Chapter 1: Product Overview 1-9
The LCD back lighting is also software controlled. In addition to OFF
and ON modes, a
dimmed mode is supported in the hardware to allow
increased tube life. If appropriate software drivers are loaded, full
brightness is restored when touched, motion detection (Motion Sensor
section), or an application request (i.e., to play promotional material on
a preset schedule).
Ethernet 10/100Base-T LAN Communications
The terminal contains a 10/100Base-T Ethernet PCI connection.
Ethernet 100Base-T is also known as
Fast Ethernet . The Boot ROM for
diskless boot functionality is included in the 1 MB system ROM. The
hardware is compatible with the TCP/IP, DHCP, and TFTP protocols
required for remote boot of the platform. Appropriate software must
be used to enable each protocol used over the Ethernet link.
The terminal may be connected to either a 10 MB/s or 100 MB/s
Ethernet connection. The hardware automatically selects the correct
speed (if enabled by software to do so).
The LAN hardware supports wakeup packet capability as defined in
the Device Class Power Management Specification, Network Device
Class (available from the Microsoft
®
Web site).
When the platform is in the Soft OFF state (refer to Advanced Power
Management section that follows), receipt of a Wakeup Packet on the
LAN can return the system to the ON state, if this feature is enabled by
software.
Note:
Due to limitations of the LAN controller and the OS, all features
described in the Network Device Class specification may not be
available.
100Base-T is wired identically to 10Base-T, except that the twisted pair
cable must be Category 5 and the hubs must permit 100 or 10/100
MB/s operation. Although 10Base-T will operate on Category 3 twisted
pair, or NCR “747” cable, an upgrade to Category 5 is required for
100Base-T.