USB-5201 User's Guide
Pin
Signal Name
1
RSVD
2
NC
3
C0H
4
C0L
5
NC
6
RSVD
7
C1H
8
C1L
9
GND
10
RSVD
CJC sensor
11
RSVD
12
NC
13
C2H
14
C2L
15
NC
16
RSVD
17
C3H
18
C3L
19
GND
20
RSVD
21
+5V
22
GND
23
DIO0
24
DIO1
25
DIO2
26
DIO3
Use 16 AWG to 30 AWG wire for your signal connections.
Tighten screw terminal connections
When making connections to the screw terminals, fully tighten the screw. Simply touching the top of the screw
terminal is not sufficient to make a proper connection.
Thermocouple input terminals (C0H/C0L to C7H/C7L)
You can connect up to eight thermocouples to the differential sensor inputs (C0H/C0L to C7H/C7L). The USB-
5201 supports type types J, K, R, S, T, N, E, and B thermocouples.
Ground terminals (GND)
The six analog ground terminals (
isolated (500 VDC) from the USB GND.
Power terminals (+5V)
The two
output terminals are isolated (500 VDC) from the USB +5V.
+5V
Caution! Each +5V terminal is an output. Do not connect to an external power supply to these terminals or
you may damage the USB-5201 and possibly the computer.
Digital terminals (DIO0 to DIO7)
You can connect up to eight digital I/O lines to the screw terminals labeled
software-configurable for input or output.
If a digital bit is set up as an alarm, the bit is configured for output on power-up, and assumes the state defined
by the alarm configuration.
USB-5201 screw terminal descriptions
Pin Description
Pin
Reserved, Do Not Use
Not connected
CH0 sensor input (+)
CH0 sensor input (-)
Not connected
Reserved, Do Not Use
CH1 sensor input (+)
CH1 sensor input (-)
Ground
Reserved, Do Not Use
Reserved, Do Not Use
Not connected
CH2 sensor input (+)
CH2 sensor input (-)
Not connected
Reserved, Do Not Use
CH3 sensor input (+)
CH3 sensor input (-)
Ground
Reserved, Do Not Use
+5V output
Ground
Digital Input/output
Digital Input/output
Digital Input/output
Digital Input/output
GND
) provide a common ground for the input channels and DIO bits and are
Signal Name
27
RSVD
28
GND
29
C7L
30
C7H
31
RSVD
32
NC
33
C6L
34
C6H
35
NC
36
RSVD
CJC sensor
37
RSVD
38
GND
39
C5L
40
C5H
41
RSVD
42
NC
43
C4L
44
C4H
45
NC
46
RSVD
47
+5V
48
GND
49
DIO7
50
DIO6
51
DIO5
52
DIO4
DIO0
15
Sensor Connections
Pin Description
Reserved, Do Not Use
Ground
CH7 sensor input (-)
CH7 sensor input (+)
Reserved, Do Not Use
Not connected
CH6 sensor input (-)
CH6 sensor input (+)
Not connected
Reserved, Do Not Use
Reserved, Do Not Use
Ground
CH5 sensor input (-)
CH5 sensor input (+)
Reserved, Do Not Use
Not connected
CH4 sensor input (-)
CH4 sensor input (+)
Not connected
Reserved, Do Not Use
+5V output
Ground
Digital Input/output
Digital Input/output
Digital Input/output
Digital Input/output
to
DIO7
. Each terminal is
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