Mass Storage; Serial And Parallel Interfaces; Universal Serial Bus Interface; Network Interface Controller - HP dx7300 Technical Reference Manual

System Overview

2.4.5 Mass Storage

All models support at least two mass storage devices, with one being externally accessible for
removable media. These systems provide the following intefaces for internal storage devices:
USDT: one SATA interface, one SATA-to-PATA bridge/interface for a Slimline optical drive
SFF/ST: three SATA interfaces
MT/CMT: four SATA interfaces
These systems may be preconfigured or upgraded with a 80-, 160-, or 250-GB SATA hard drive
and one removable media drive such as a CD-ROM drive.

2.4.6 Serial and Parallel Interfaces

All models except those that use the USDT form factor include a serial port and a parallel port,
both of which are accessible at the rear of the chassis. The USDT form factor may be upgraded
with an adapter to provide serial and parallel ports. The SFF, ST, MT, and CMT form factors may
be upgraded with an optional second serial port.
The serial interface is RS-232-C/16550-compatible and supports standard baud rates up to
115,200 as well as two high-speed baud rates of 230K and 460K. The parallel interface is
Enhanced Parallel Port (EPP1.9) and Enhanced Capability Port (ECP) compatible, and supports
bi-directional data transfers.

2.4.7 Universal Serial Bus Interface

All models provide eight Universal Serial Bus (USB) ports, with two ports accessible at the front
of the unit and six ports accessible on the rear panel. The USB interface provides hot
plugging/unplugging functionality. These systems support USB 1.1 and 2.0 functionality on all
ports.

2.4.8 Network Interface Controller

All models feature a Intel 82566 Gigabit Network Interface Controller (NIC) integrated on the
system board. The controller provides automatic selection of 10BASE-T, 100BASE-TX, or
1000BASE-T operation with a local area network and includes power-down, wake-up, and
Alert-On-LAN (AOL), and Alert Standard Format (ASF) features. An RJ-45 connector with
status LEDs is provided on the rear panel.
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