ncr/doc/RealPOS/7455/Technical_Manuals/7455_Re... - Alsys Data

Chapter 1: Product Overview 1-9
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, 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.
A customer desiring to use the terminal in an existing 10Base-T
environment can do so and simply run at 10 MB. In order to upgrade to
100 MB/s, Category 5 cable and 100 or 10/100 hubs must be installed.
NCR strongly recommends the use of Category 5 for all new cabling,
even if the customer initially intends to run only 10Base-T.
LED Indicators for Link Integrity (verifies cable and hub connection are
good) and LAN speed is provided on the Processor Board near the row
of connectors at the bottom of the e-box. The LED is ON (yellow) when
the speed is running at 100 MB/s.