Data Sheet
Ref. IS.MDUINO.XXX
4. Pin 3/I0.6: Choosing between Pin 3 or the input I0.6. If this switch is ON, it enables the I0.6
input and disables the Pin 3. If this switch is OFF, it enables Pin 3 and disables I0.6. If it is a
Relay Shield I0.6 is changed for I0.1
3. Pin 2/I0.5: Choosing between Pin 2 or the input I0.5. If this switch is ON, it enables the I0.5
input and disables the Pin 2. If this switch is OFF, it enables Pin 2 and disables I0.5. If it is a
Relay Shield I0.5 is changed for I0.0
2. D53(SD): If this Switch is ON, it enables the Chip Select of the microSD socket. If this switch is
OFF, it disables the Chip Select of the microSD socket.
*If the D Zone is an Analog Shield, Q2.0 is also related with D53. Being D53 in ON Mode the Q2.0 MUST NOT be
used because it can corrupt the microSD. In order to use the Q2.0 the switch D53(SD) must be set to OFF.
*If the D Zone is a Relay Shield there is no problem and it can be set always to ON. Q2.0 of the Relay Shield is
related with D12, so it doesn’t affect in any case to the microSD. The pin53 is not connected at all to any
input/output, it only connects to the uSD chip select.
1. FD RS-485 HD: Choosing between SCL or the input I2.6. If this switch is ON, it enables the
I2.6 input and disables the SCL. If this switch is OFF, it enables SCL and disables I2.6.
1. RTC SDA: This switch enables the communication to communicate with the RTC using
I2C. Having this switch in ON mode it actives this communication, whereas if it is in
OFF mode it disables the I2C to reach the RTC.
2. RTC SCL: This switch enables the communication to communicate with the RTC using
I2C. Having this switch in ON mode it actives this communication, whereas if it is in
OFF mode it disables the I2C to reach the RTC.
3. NC: Not connected. This switch is not connected to anything, it doesn’t matter if it is in
ON mode or OFF mode.
4. NC: Not connected. This switch is not connected to anything, it doesn’t matter if it is in
ON mode or OFF mode.
LEFT ZONE
SWITCH
ON
OFF
NC
-
-
NC
-
-
RTC SCL
RTC
-
RTC SDA
RTC
-