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+5V_RUN
R2
R-4K7
Q1A
2
2N7002DW
SER0_TX
R1
R-4K7
+5V_RUN
R4
R-4K7
Q1B
5
2N7002DW
SER1_TX
R3
R-4K7
R5
R-1K
SER0_RX
Q2A
2
2N7002DW
+5V_RUN
R6
R-1K
SER1_RX
C19
CC-100nF/25V
Q2B
5
2N7002DW
3.2.5.14 I2C interface signals
This interface is managed by the embedded microcontroller.
Signals involved are the following
I2C_CK: general purpose I2C Bus clock line. Output signal, electrical level +3.3V_ALW with a 2K2Ω pull-up resistor.
I2C_DAT: general purpose I2C Bus data line. Bidirectional signal, electrical level +3.3V_ALW with a 2K2Ω pull-up resistor.
COMe-C55-CT6
COMe-C55-CT6 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B. - Reviewed by L.V. Copyright © 2020 SECO S.p.A.
+5V_RUN
U5
1
6
A1
Y 1
2
5
GND
VCC
3
4
A2
Y 2
NC7WZ04
C20
CC-100nF/25V
U3
1
C1+
C9
CC-100nF/25V
3
C1-
11
T1IN
10
T2IN
12
R1OUT
9
R2OUT
4
C2+
C11
CC-100nF/25V
5
C2-
SP3232ECY
U6
6
1
Y 1
A1
5
2
VCC
GND
4
3
Y 2
A2
NC7WZ04
+5V_RUN
P3
16
VCC
5
C10
CC-100nF/25V
15
4
GND
14
3
RS232_TX_0
T1OUT
7
RS232_TX_1
T2OUT
13
2
RS232_RX_0
R1IN
8
RS232_RX_1
R2IN
1
2
V+
C12
6
CC-100nF/25V
DB9 CONNECTOR
V-
C13
P4
CC-100nF/25V
5
4
3
2
1
DB9 CONNECTOR
10
9
8
7
6
11
10
9
8
7
6
11
44
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