
page 6 – 2
D-9 / Jan 2006
H A R D W A R E
Host Controller (HC-9)
Overview
The host controller card used in the D-9 incorporates a PC/104 computer
mounted on the HC-9 PCB. The host computer utilizes RAM, a flash disk
(which emulates a standard IDE hard drive) and an Ethernet port. There is no
hard disk drive. Keyboard, floppy controller and video ports are for factory use
only.
The purpose of the host controller is to provide control of the D-9 control
surface. The HC-9 communicates to the XPoint Configuration PC via TCP/IP
over Ethernet through a standard ethernet hub or switch. It also communicates
to the Bridge Router system via a special mixer link connection.
Hardware and software configuration, as well as real time crosspoint
information, is saved in non-volatile storage on the HC-9 card and is restored
at power up or reset. This configuration information provides details to the host
application running on the HC-9, such as the specific audio hardware available
and serial port allocation. The HC-9 host controller card can be fitted with an
optional 2nd PC/104 computer for redundancy.
HC-9 BIOS Settings/Format
BIOS Setup and formatting of the Host CPU is completed prior to the
testing of your D-9 control surface at the Wheatstone factory. There are no user
adjustable settings.
Ethernet IP Addressing
The Wheatstone D-9 control surface ships with the host controller IP
address set. Stand-alone systems (not interfaced to a station’s existing net-
work) require no IP address changes.
Ethernet Interface Wiring
Networked systems are connected to the network hub or switch via a
straight (pin to pin) CAT-5 cable. Typical CAT-5 cable pinouts are included
in the “Hook-Ups” section near the end of this chapter. These connections are
for communicating with the configuration computer; a separate ethernet
connection should be provided for each control surface.
Содержание D-9
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