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B-4 System Specifications
Calendar Clock
Year/month/day/hour/minute/second/.01 second; maintained by battery
backup module
Battery type — Lithium coin cell
Input/Output (I/O) Facilities
Industry-standard interfaces integrated on system board:
Parallel — bi-directional, ECP/EPP support; one 25-pin connector
Serial — two high-speed RS-232C ports using 16550 UART, support
transfer rates up to 115.2 KB per second; 9-pin connectors
Universal Serial Bus (USB) — two USB ports, support two USB
peripherals directly to the system; with appropriate connector, each
port supports up to 127 daisy-chained devices; supports 12 megabits
(Mbs) per second
Keyboard — PS/2-compatible, 6-pin mini DIN connector
Mouse — PS/2-compatible, 6-pin connector (mini DIN)
Microphone In — supports a microphone or other audio input device
for recording audio information in data files, or broadcasting audio
Line In — supports input from an external audio device
Line Out — supports an amplified output device.
Industry-standard interfaces integrated on the riser board:
IDE
—
dual IDE channels; each supporting two Ultra DMA IDE devices
—
CD-ROM drive or DVD-ROM drive and hard drive on separate
channels
—
support for up to 33.3 MB/second 32-bit transfers on PCI bus
—
support for a total of four IDE devices; 40-pin connectors
—
support for PIO mode 3 and mode 4