NCR 7455, Hardware User'S Manual

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Chapter 1: Product Overview 1-11
Depending on the OS environment, Remote Boot may be supported,
but due to the slow network speed a large boot image may take an
unacceptably long time to load. The application developer needs to
ensure that the load is of reasonable size.
The wired Ethernet connection is not certified for use in configurations
where a wireless adapter is installed.
Universal Serial Bus
Three USB Type-A ports are provided on the terminal, one of which is
reserved for integrated devices and not externally accessible. Only two
of the USB ports can be active at the same time. If the auxiliary USB
port, located near the MSR, is enabled, one of the two ports on the
main connector row becomes disabled. This is controlled from the
BIOS setup menu. USB Host Controller support is provided on the
Processor Board.
Note: USB peripherals require support from the operating system,
which is currently limited to Windows
®
98, Windows 2000, and
Windows NT
®
SP 5.
Serial Ports
The terminal supports up to four RS-232 ports. Four 9-pin D-shell
connectors are provided. RS-232/A & C are powered ports to supply
power through the serial connection on a peripheral. RS-232/B & D are
not powered and available for other serial peripherals such as a
printer.
RS-232 Connector Pinout (DB-9 connector, male)
Pin Connector 1 Connector 2 Pin Connector 1 Connector 2
1 DCD DCD 6 DSR DSR
2 RXD RXD 7 RTS RTS
3 TXD TXD 8 CTS CTS
4 DTR DTR 9 RI or +12 VDC RI
5 GND GND