Measurement Computing USB-QUAD08 User Manual
Page 34
USB-QUAD08 User's Guide
Specifications
34
Table 12. Single-ended mode pinout
Signal name
Terminal description
Signal name
Terminal description
ENC+
Encoder power output (Note 6)
GND
Ground
0PHA+
Counter 0 Phase A
1INDX
–
Floating (Note 7)
0PHA
–
Floating (Note 7)
1INDX+
Counter 1 Phase A
0PHB+
Counter 0 Phase B
1PHB
–
Floating (Note 7)
0PHB
–
Floating (Note 7)
1PHB+
Counter 1 Phase B
0INDX+
Counter 0 Index
1PHA
–
Floating (Note 7)
0INDX
–
Floating (Note 7)
1PHA+
Counter 1 Index
GND
Ground
ENC+
Encoder power output (Note 6)
ENC+
Encoder power output (Note 6)
GND
Ground
2PHA+
Counter 2 Phase A
3INDX
–
Floating (Note 7)
2PHA
–
Floating (Note 7)
3INDX+
Counter 3 Phase A
2PHB+
Counter 2 Phase B
3PHB
–
Floating (Note 7)
2PHB
–
Floating (Note 7)
3PHB+
Counter 3 Phase B
2INDX+
Counter 2 Index
3PHA
–
Floating (Note 7)
2INDX
–
Floating (Note 7)
3PHA+
Counter 3 Index
GND
Ground
ENC+
Encoder power output (Note 6)
ENC+
Encoder power output (Note 6)
GND
Ground
4PHA+
Counter 4 Phase A
5INDX
–
Floating (Note 7)
4PHA
–
Floating (Note 7)
5INDX+
Counter 5 Phase A
4PHB+
Counter 4 Phase B
5PHB
–
Floating (Note 7)
4PHB
–
Floating (Note 7)
5PHB+
Counter 5 Phase B
4INDX+
Counter 4 Index
5PHA
–
Floating (Note 7)
4INDX
–
Floating (Note 7)
5PHA+
Counter 5 Index
GND
Ground
ENC+
Encoder power output (Note 6)
ENC+
Encoder power output (Note 6)
GND
Ground
6PHA+
Counter 6 Phase A
7INDX
–
Floating (Note 7)
6PHA
–
Floating (Note 7)
7INDX+
Counter 7 Phase A
6PHB+
Counter 6 Phase B
7PHB
–
Floating (Note 7)
6PHB
–
Floating (Note 7)
7PHB+
Counter 7 Phase B
6INDX+
Counter 6 Index
7PHA
–
Floating (Note 7)
6INDX
–
Floating (Note 7)
7PHA+
Counter 7 Index low
GND
Ground
ENC+
Encoder power output (Note 6)
+5V
Power output
+5V
Power output
XTRIG
External trigger input
CLMP+
CEMF protection for DIO (Note 10)
XPCR
External pacer input
ENC+ IN
Encoder power input (Note 6)
GND
Ground
GND
Ground
DIO0
DIO channel 0
DIO1
DIO channel 1
DIO2
DIO channel 2
DIO3
DIO channel 3
DIO4
DIO channel 4
DIO5
DIO channel 5
DIO6*
DIO channel 6 (Note 8)
DIO7*
DIO channel 7 (Note 9)
Note 6:
External supply when operating in encoder mode. ENC+ IN is passed to all ENC+ lines with optional
protection diodes to prevent reverse connection.
Note 7:
In single-ended mode, the PhaseA, PhaseB and Index (–) inputs at the user connector are left floating.
The (–) inputs of the differential receiver are routed to +3 V reference.
Note 8:
DIO6 can also function as Timer Output 0.
Note 9:
DIO7 can also function as Timer Output 1.
Note 10:
CEMF protection to the DIO supply; it is not a source.