NAD T748 Service Manual page 42

IC 407 : ST3232ECDR (RS-232 DRIVERS & RECEIVERS)
Pin configuration
Pin connection
Pin description
P n l N °
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
S y m b l o
C + Positive terminal for the first charge pump capacitor
1
V+ Doubled voltage terminal
C - Negative Terminal for the first charge pump capacitor
1
C + Positive terminal for the second charge pump capacitor
2
C - Negative terminal for the second charge pump capacitor
2
V- Inverted voltage terminal
T2 Second transmitter output voltage
OUT
R2 Second receiver input voltage
IN
R2 Second receiver output voltage
OUT
T2 Second transmitter input voltage
IN
T1 First transmitter input voltage
IN
R1 First receiver output voltage
OUT
R1 First receiver input voltage
IN
T1 First transmitter output voltage
OUT
GND Ground
V Supply voltage
CC
2-30
N a m e a n d u f n t c o i n