Wheatstone Corporation G-3, Technical Manual, Page: 26 / 66

page 4 – 2
G-3 / Jun 2004
H A R D W A R E
Host Controller (HC-3)
Overview
The host controller card used in the G-3 incorporates a PC/104 computer
mounted on the HC-3 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 G-3 control
surface. The HC-3 communicates to the XPoint Configuration PC via TCP/
IP over Ethernet through a standard ethernet hub or switch. It also communi-
cates 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-3 card and is restored
at power up or reset. This configuration information provides details to the
host application running on the HC-3, such as the specific audio hardware
available.
HC-3 BIOS Settings/Format
BIOS Setup and formatting of the Host CPU is completed prior to the
testing of your G-3 control surface at the Wheatstone factory. There are no
user adjustable settings. Please contact customer support with questions
regarding the PC/104 SBC BIOS settings or flash disk formatting.
Ethernet IP Addressing
The Wheatstone G-3 control surface ships with the host controller IP
address set. Stand-alone systems (not interfaced to a station’s existing
network) require no IP address changes.
Ethernet Interface Wiring
Networked systems are connected to the network hub or switch via a
straight (pin to pin) CAT5 cable. Typical CAT5 cable pinouts are included in
the “Hook-Ups” section near the end of this chapter. T
HESE CONNECTIONS ARE
FOR COMMUNICATING WITH THE CONFIGURATION COMPUTER
;
A SEPARATE ETHERNET
CONNECTION SHOULD BE PROVIDED FOR EACH CONTROL SURFACE
.