RA0002 - Technical Information Manual
11
Startup
Consider the RA0002 connected with Ion R4300P reader. When the Ion R4300P reader is turned on, it executes the
boot process. During the boot the reader performs the initialization process and it is not controllable.
During this phase the reader GPI/O follow the standard sequence in the table below:
RA0002 GPI/O
START UP
LED
GPI0
INPUT HIGH
OFF
GPI1
INPUT HIGH
OFF
GPI2
INPUT LOW
ON
GPI3
INPUT LOW
ON
GPO0
ACTIVE LOW
ON
GPO1
ACTIVE LOW
ON
GPO2
ACTIVE HIGH
OFF
GPO3
ACTIVE HIGH
OFF
RELAY OUT
NC
OFF
Tab. 2.2: Startup GPI/O configuration
Warning:
During the boot process, a device connected to the RA0002 outputs may have particular behaviour: for
example, an alarm sounder connected to RA0002 (like in the example n.1 of
Connect an Alarm Sounder to RA0002
pag.
22) will be active and sound during the boot process. If you want it to be turned off during the boot process simply
connect the alarm sounder to GPO2 or GPO3 or connect the alarm sounder like in the example n.2 of
pag.