UMAX Technologies Astra 2400S, Operation Manual

Page: 21 / 22

Optical Assembly: The component system of the scanner that contains all of the optical components.
Sometimes referred to as a carriage or carriage assembly .
Option (ADF/UTA) Indicator:
Glows when an automatic document feeder or transparency adapter is
installed and ready for use.
Peripheral Device:
A device attached to a computer that adds functionality to a computer system.
Pixel:
The smallest unit within an image file. The actual pixel displays a value based on the bit-depth of
the image.
Power Indicator:
The indicator that glows when the scanner’s power cable is connected to the scanner
and a “live” outlet and the power switch is turned on.
Ready Indicator:
The indicator that glows when the scanner is ready to be used.
Resolution:
A measure of how many dots-per-inch are scanned.
SCSI Chain:
One or more SCSI devices connected to the same SCSI controller.
SCSI Device:
A device which connects to a computer using the SCSI interface.
SCSI ID Switch:
The switch on most external SCSI devices which is used to set the SCSI ID.
SCSI ID:
A unique number between 0 and 7 that identifies each device on a SCSI chain. The SCSI ID is
set using a SCSI ID switch (present on most external SCSI devices).
Terminator:
An electronic component that absorbs stray signals in a SCSI chain of computer equipment
to ensure reliable operation.
TWAIN Compliant:
Any software or image input device that conforms to the TWAIN standard.
TWAIN:
A standardized interfacing system that allows many different software applications to access
many different imaging input devices.
UTA:
UMAX Transparency Adapter; a scanner option that consists of additional hardware allowing the
scanning of transparent originals, such as slides or x-rays.
21