C
L E A R
P
A T H
- S C
U
S E R
M
A N U A L
R
E V
.
1 . 3 6
1 0 8
T
EKNIC
,
I
NC
. T
EL
.
(585)
784-7454
SC4-HUB
S
CHEMATIC
(
SIMPLIFIED
)
3
2
1
MMBT5401
Q1
2
1
33nF
C3
5V
Data to ClearPath ->
7
2
6
8
1
46999-0567
ClearPath 0
2
3
1
MMBTA06
Q2
10
11
SN74HC14PWR
U2E
4
5
3
<- Data from ClearPath
12
13
U2F
GND
GND
GND
2
4
3
1
SRF0905-652Y
L1
2
1
U2A
4
3
U2B
12V
21
0.1uF
C1
768
1
2
R3
1
2
604
R11
1
2
91
R4
1
2
4.02k
R10
1
2
1k
R5
1
2
62
R2
1
2
62
R9
3
2
1
MMBT5401
Q1
2
1
33nF
C3
5V
Data to ClearPath ->
7
2
6
8
1
46999-0567
ClearPath 0
2
3
1
MMBTA06
Q2
10
11
SN74HC14PWR
U2E
4
5
3
<- Data from ClearPath
12
13
U2F
GND
GND
GND
2
4
3
1
SRF0905-652Y
L1
2
1
U2A
4
3
U2B
12V
2
1
0.1uF
C1
768
1
2
R3
1
2
604
R11
1
2
91
R4
1
2
4.02k
R10
1
2
1k
R5
1
2
62
R2
1
2
62
R9
2
1
1uF
C12
2
1
1uF
C7
2
1
1uF
C17
2
1
1uF
C10
Extension connector
DB-9 / RS-232
Connection to PC
DB-9 / RS-232
21
1uF
C15
21
1uF
C8
21
1uF
C16
21
1uF
C11
-2Vcc+1.5
6
2Vcc-1.5
2
7
14
8
13
10
C1+
1
C2-
5
C1-
3
11
C2+
4
9
12
SN65C3232EDR
U6A
-2Vcc+1.5
6
2Vcc-1.5
2
7
14
8
13
10
C1+
1
C2-
5
C1-
3
11
C2+
4
9
12
SN65C3232EDR
U7A
GND
GND
GND
GND
GND
GND
GND
GND
GND
5V
4
3
U1B
6
5
U1C
1
2
470k
R8
1
2
280
R7
GND
3
1
BAS21
CR1
1
2
LED1
5V
2
1
0.1uF
C2
Data input indicator
4
4
4
4
4
3
3
3
U1B
6
5
U1C
C
1
2
470k
R8
1
2
280
R7
GND
3
1
BAS
S21
CR1
1
2
LED1
5V
2
1
0.1uF
C2
Data input indicator
1
2
J5
1
2
J2
1
2
J1
1
2
J0
1
2
J
3
3
2
1
MMBT5401
Q3
21
33nF
C5
5V
Data to ClearPath ->
7
2
6
8
1
46999-0567
2
3
1
MMBTA06
Q4
10
11
SN74HC14PWR
U3E
4
5
3
<- Data from ClearPath
12
13
U3F
GND
GND
GND
2
4
3
1
SRF0905-652Y
L2
2
1
U3A
4
3
U3B
12V
21
0.1uF
C4
768
1
2
R6
1
2
604
R16
1
2
91
R12
1
2
4.02k
R15
1
2
1k
R14
1
2
62
R1
1
2
62
R13
3
2
1
MMBT5401
Q3
2
1
33nF
C5
5V
Data to ClearPath ->
7
2
6
8
1
46999-0567
2
3
1
MMBTA06
Q4
10
11
SN74HC14PWR
U3E
4
5
3
<- Data from ClearPath
12
13
U3F
GND
GND
GND
2
4
3
1
SRF0905-652Y
L2
2
1
U3A
4
3
U3B
12V
2
1
0.1uF
C4
768
1
2
R6
1
2
604
R16
1
2
91
R12
1
2
4.02k
R15
1
2
1k
R14
1
2
62
R1
1
2
62
R13
GND
5V
3
2
1
MMBT5401
Q5
2
1
33nF
C9
5V
Data to ClearPath ->
7
2
6
8
1
46999-0567
2
3
1
MMBTA06
Q6
10
11
SN74HC14PWR
U4E
4
5
3
<- Data from ClearPath
12
13
U4F
GND
GND
GND
2
4
3
1
SRF0905-652Y
L3
2
1
U4A
4
3
U4B
12V
21
0.1uF
C6
768
1
2
R18
1
2
604
R23
1
2
91
R19
1
2
4.02k
R22
1
2
1k
R21
1
2
62
R17
1
2
62
R20
3
2
1
MMBT5401
Q5
2
1
33nF
C9
5V
Data to ClearPath ->
7
2
6
8
1
46999-0567
2
3
1
MMBTA06
Q6
10
11
SN74HC14PWR
U4E
4
5
3
<- Data from ClearPath
12
13
U4F
GND
GND
GND
2
4
3
1
SRF0905-652Y
L3
2
1
U4A
4
3
U4B
12V
2
1
0.1uF
C6
768
1
2
R18
1
2
604
R23
1
2
91
R19
1
2
4.02k
R22
1
2
1k
R21
1
2
62
R17
1
2
62
R20
GND
5V
3
2
1
MMBT5401
Q7
2
1
33nF
C14
5V
Data to ClearPath ->
7
2
6
8
1
46999-0567
2
3
1
MMBTA06
Q8
10
11
SN74HC14PWR
U5E
4
5
3
<- Data from ClearPath
12
13
U5F
GND
GND
GND
2
4
3
1
SRF0905-652Y
L4
2
1
U5A
4
3
U5B
12V
21
0.1uF
C13
768
1
2
R25
1
2
604
R30
1
2
91
R26
1
2
4.02k
R29
1
2
1k
R28
1
2
62
R24
1
2
62
R27
3
2
1
MMBT5401
Q7
2
1
33nF
C14
5V
Data to ClearPath ->
7
2
6
8
1
46999-0567
2
3
1
MMBTA06
Q8
10
11
SN74HC14PWR
U5E
4
5
3
<- Data from ClearPath
12
13
U5F
GND
GND
GND
2
4
3
1
SRF0905-652Y
L4
2
1
U5A
4
3
U5B
12V
2
1
0.1uF
C13
768
1
2
R25
1
2
604
R30
1
2
91
R26
1
2
4.02k
R29
1
2
1k
R28
1
2
62
R24
1
2
62
R27
GND
5V
DCD
1
RXD
2
TXD
3
DTR
4
GND
5
DSR
6
RTS
7
CTS
8
RI
9
J4
DCD
1
RXD
2
TXD
3
DTR
4
GND
5
DSR
6
RTS
7
CTS
8
RI
9
J6
2
1
1uF
C12
2
1
1uF
C7
2
1
1uF
C17
2
1
1uF
C10
Extension connector
DB-9 / RS-232
Connection to PC
DB-9 / RS-232
2
1
1uF
C15
2
1
1uF
C8
2
1
1uF
C16
2
1
1uF
C11
-2Vcc+1.5
6
2Vcc-1.5
2
7
14
8
13
10
C1+
1
C2-
5
C1-
3
11
C2+
4
9
12
SN65C3232EDR
U6A
-2Vcc+1.5
6
2Vcc-1.5
2
7
14
8
13
10
C1+
1
C2-
5
C1-
3
11
C2+
4
9
12
SN65C3232EDR
U7A
GND
GND
GND
GND
GND
GND
GND
GND
DCD
1
RXD
2
TXD
3
DTR
4
GND
5
DSR
6
RTS
7
CTS
8
RI
9
J4
1
2
3
4
5
DSR
6
RTS
7
8
9
DCD
RXD
TXD
CTS
DTR
RI
GND
J6
E-STOP
BRAKE 0
BRAKE 1
E-STOP
BRAKE 0
BRAKE 1
SEE
PAGE
2
ClearPath 1
ClearPath 2
ClearPath 3
GND
5V
GND
5V
SC4-HUB simplified schematic page 1