Owner's manual

Installation and Startup Guide
Rio Rancho, NM
7
Headphone Monitor
Used to monitor individual final mix buses as selected
on the LCD. Standard 1/4 inch jack and level control.
Drives both channels of stereo headphones.
On single board, 1RU models, the processor must be
connected with the ASPEN control panel to gain access
to the headphone monitor channel selection.
LCD
Allows setup and adjustment of most operating param-
eters and for minor adjustments without a computer
interface.
Navigation/Select Control
Used to navigate menus and make value selections and
settings on the LCD.
USB Port
Standard USB connector for the setup and control of
a DMTH4 from an Windows
®
XP, Vista or 7 computer
system*withUSBinterface.
Status LEDs
Comm LED - blinks to indicate USB, RS-232 and ether-
net communication
Alert LED - blinks to indicate fault or error, glows white
during firmware updates
Power LED - glows to indicate power ON
Front Panels
Dual-board models in 2RU chassis include a front panel
LCD and rotary style navigation control for adjustment
without the need for a computer interface. Single board
models require a computer interface for setup and
adjustment.
812
1612
POWER SwitchUSB Port
Comm LED
Headphone Monitor
Navigation/Select
Control
LCD
Alert LED
Power LED
The headphone output is used to monitor each final mix
for diagnostics and system checkout. LEDs on the right
side of the front panel indicate communications through
serial and ethernet ports, provide an alert indicating an
error, activity during firmware updates and power status.
*Windows is a registered trademark of Microsoft Corp.