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Table 1
. U519 Scanner LED Meanings
LED
Color
Status
Power ON
Red
ON = scanner is turned on
and receiving power from
external power supply
Activity/Error
Yellow
Flicker = scanner detects tag
information.
Constant Flickering with no tag
in the scanning field =
(a) Noisy environment or
possible interference,
resulting in diminished tag
reading.
(b) Loose cable or bad
connector
Transmit On
Green
On = Scanner is transmitting
RF signals.
connector allows the scanner to communicate with a personal computer
through the PC’s serial port. For more information on making this
connection, refer to page 13.
The upper right connector is the 25-pin test connector. For more
information on this connector, refer to Chapter 6.
U519 Manual.p65
10/27/2000, 4:35 PM
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