Thermocouple Input Terminals (C0H/C0L To C7H/C7L); Ground Terminals (Gnd); Power Terminals (+5V); Digital Terminals (Dio0 To Dio7) - Measurement Computing USB-5201 User Manual

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