Application Circuits
Typical Application Circuit
Supply Voltage of Logic Side A. Bypass VCCA with a 0.1μF ceramic capacitor to GNDA
VCCA
VCCA
Supply Voltage of Logic Side B. Bypass VCCB with a 0.1μF ceramic capacitor to GNDB
VCCB
VCCB
TTL/CMOS Transmitter Input 1
T1IN
T1IN
TTL/CMOS Transmitter Input 2
T2IN
T2IN
TTL/CMOS Receiver Output 1
R1OUT
R1OUT
TTL/CMOS Receiver Output 2
R2OUT
R2OUT
Ground for Logic Side A
GNDA
GNDA
RS-232 Transmitter Output 1
T1OUT
T1OUT
RS-232 Transmitter Output 2
T2OUT
T2OUT
RS-232 Receiver Input 1
R1IN
R1IN
RS-232 Receiver Input 2
R2IN
R2IN
Ground for Field Side B
GNDB
GNDB
Voltage Doubler
VOLTAGE
DOUBLER
Voltage Inverter
VOLTAGE
INVERTER
V-
V-
V+
V+
0.1uF
0.1µF
0.1uF
0.1µF
5K
5K
5K
5K
TX
T
X
RTS
RTS
CTS
CTS
RX
R
X
TX
T
X
RTS
RTS
CTS
CTS
RX
R
X
LOGIC LEVELS
LOGIC LEVELS
PERIPHERALS RS-232 LEVELS
PERIPHERALS
RS
-232 LEVELS
C1
C1
C2
C2
C3
C3
C4
C4
