User Manual

IDentity Flex Hardware Manual – Installation sirit
Version 2.3 Page 40
IDENTITY FLEX READER - SYNC PULSE
CHARACTERISTICS
In multi-reader installations, where readers must be synchronized but fail to
synchronize, connections can be verified using an oscilloscope. The following
sync pulse train characteristics are observed on a functional reader, where it
leaves a Master reader or arrives at a Slave. These differential voltages can
also be observed and measured on a peak-reading meter as shown but if an
RMS meter is utilized, indicated readings will be reduced by 50 to 75%. An
example is a peak voltage of 8 volts will read on an RMS meter as
approximately 2 Volts and will be fluctuating.
Placing measurement probe on + terminals
0V
8V
43 mS
1 mS
Placing measurement probe on - terminals
0V
-8V
43 mS
1 mS
DWG-IDFLEX-SYNC-01