User's Manual

9
Table 1. S556-EP 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.
556-EP Manual.P65 1/18/2001, 2:45 PM9