Hardware Monitor; Pci Expansion Header; Ide Header; Audio - NCR 7454 Hardware User's Manual

1-14 Chapter 1: Product Overview
RS-232 DB-9 Male Connector Pinout
Pin Port A
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI or +12*
* If Port 1 or 3 is powered, pin 9 will be +12 V.

Hardware Monitor

The hardware monitor generates an interrupt to the system whenever
any of the internal voltages used by the system processor goes above or
below the acceptable operating range. An interrupt is also generated
when the temperature of the Processor exceeds safe levels. Software
can use this indication to slow or stop the system and/or force a reset.

PCI Expansion Header

A single expansion header is provided to support optional features,
such as the PCMCIA for Wireless LAN Board. This board supports two
Type 2 or one Type 3 PCMCIA type cards.

IDE Header

A standard IDE header is provided to support the 2.5ʺ hard disk drive
or the 64 MB and 256 MB compact flash.

Audio

The base unit has Sound Blaster‐compatible audio. Wave table
synthesis is not supported. FM synthesis and MIDI are supported in
the hardware, but requires software driver support to function.
Port B
DTR
GND
DSR
RTS
CTS
RI