User's Manual

RU00-M04 RFID Spitfire Module Specifications
PAGE: 14
11- RU00-M04-X001-01
DATE: 10-25-2016
 Enable
Pin 12 of the RU00-M04 comprises the ENABLE signal. The RU00-M04 is held in reset if the signal is held
low. The ENABLE signal is bidirectional and is pulled down to 3.3V by ~10kΩ resistance internal to the
RU00-M04. Any external connection to this pin must maintain a low impedance (<<10kΩ) other than when
an external reset signal is applied. This allows the RU00-M04 to exert control of the reset line during power
up and other situations that require it.
 Health and Status
RU00-M04 pin 20 is a dedicated digital output that indicates the HEALTH of the RU00-M04. After the
RU00-M04 is successfully booted and in its operational state, the health output switches to low. Otherwise,
the output is high. The OEM can digitally monitor this signal or use it to drive an LED for visual indication
of the RU00-M04 health.
Pin 19 is a dedicated digital output that indicates the tag inventory STATUS of the RU00-M04. When the
RU00-M04 is successfully inventorying one or more tags, it will generate 0.5ms minimum high pulse. The
output remains low when no tags are being inventoried. Like the health signal, the OEM can monitor it via
firmware or use it to drive an LED for visual indication to the device user.