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5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
+5Vi
+5Vi
+3.3Vu
+3.3Vu
+3.3Vu
+3.3Vu
+3.3Vu
+5Vi
+5Vi
+3.3Vu
+3.3Vu
+3.3Vu
+3.3Vu
GND-USB
VBUS1-SW
CP2105-D+
CP2105-D-
GND
DTR-PK232
TX
RX
RTS
CTS
DTR
Title
Size Document Number Rev
Date: Sheet
of
<Doc> 12-4.1
PK-232 USB- UART & Rig Control
C
35Monday, October 31, 2011
RTS
TXD/
CTS
DCDB/ U19-8
RXDB U19-3
CTSB/ U19-11
RXD/
RXD/
CTS
TXD/
RTS
DTRB/ U20-9,10
TXDB U20-4,5
RTSB U20-12,13
To PK-232 U7 8530
Remove U19, U20
solder wires to U19, U20 pins
DCDB/ U19-8
RXDB U19-3
CTSB/ U19-11
DTRB/ U20-9,10
TXDB U20-4,5
RTSB U20-12,13
U19-5
U19-6
U19-7
Connect 2N3904 for PK-232 only!
Do not use for PK-232MBX and
all Timewave models
RI
DTR
DCD DCD
TXD
/RTS
/CTS
Rig Control
RTS
CTS
GND
TXD/
TX
RX
TX
RX
DTR
Rig Control - DTR - Aux Out
To SC Conn board
RXD-KW
RX
TX
CTS
RTS
RX
CTS
Rig Control -
Kenwood sensing pins
To SC Conn board
DTR
CTS
Do Not Stuff!
RX
CTS
TX
RTS
R74
10k
R27 470
R39
Open
R76 10
R64 150
R75 150
R33
470
R61 Open
C105
0.1uF
U11
PS2801C-4
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
R135
100k
JP11TX
1
2
3
R70
150
JP9 HEADER 3
1
2
3
R44
Open
C64
1nF
U17B
74LVC86/SO
6
4
5
147
R73
100k
R31 470
C106
0.1uF
U26 open
1
2
4
3
+
C53
4.7uF/6.3V
R24 470
R136
10k
U18 PS2801C-1-F3-A
1
2
4
3
J7
1
2
JP12 RTS
1
2
3
C38
0.1uF
C107
0.1uF
U14D
74LVC86/SO
11
12
13
147
R62 10k
R38
Open
U17D
74LVC86/SO
11
12
13
147
R34
470
R137 open
R36
10k
JP13 RX
1
2
3
R55 150
R67
Open
R29
470
R69
150
R138
open
R43
Open
R35
47k
R37
Open
R32
4.7k
C52
0.1uF
R48
Open
JP14 CTS
1
2
3
U14A
74LVC86/SO
3
1
2
147
R56
470
R28
470
U12 74HC7541
OE1
1
GND
10
OE2
19
VCC
20
A0
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
Y0
18
Y1
17
Y2
16
Y3
15
Y4
14
Y5
13
Y6
12
Y7
11
R68 10k
C54
1.0uF/10V
U13
CP2105
Vio
5
REGIN
7
VDD
6
GND
2
VBUS
8
D+
3
D-
4
/RST
9
/Suspend-RIe
17
Vpp-DCDe
16
GPIO.1-DTRe
15
RTSe
11
TXDe
13
CTSe
10
RXDe
12
RXDs
20
TXDs
21
RTSs
19
CTSs
18
GPIO.1-DSRe
14
GPIO.1-DTRs
23
GPIO.0-DCDs
24
/Suspend-RIs
1
GPIO.2-DSRs
22
U14B 74LVC86/SO
6
4
5
14 7
R46
10k
R47
10k
R42
Open
R57
470
R30 560
U17A
74LVC86/SO
3
1
2
147
JP8 HEADER 3
1
2
3
R52 Open
+
C51
4.7uF/6.3V
R26 470
JP10 HEADER 3
1
2
3
U17C
74LVC86/SO
8
9
10
147
C103
0.1uF
C109
open
Q1
MMBT2222A
R41
Open
R45
47k
R40
Open
R25
47k
R51
10k
U14C
74LVC86/SO
8
9
10
147
C63
1nF
R60
47k
R49 150
U15
PS2801C-4
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
C47
0.1uF
R63 150
19


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