Measurement Computing USB-2527 User Manual
Page 14
USB-2527 User's Guide
Installing the USB-2527
14
TB-100 terminal board connector to SCSI connector pin out
SCSI connector pin out assignments for TB-7 terminal board connector
(differential analog signals in parentheses)
TB2 screw terminals
SCSI pin
TB1 screw terminal
SCSI pin
+5V 19
ACH0 (ACH0 HI)
68
GND
*
ACH8 (ACH0 LO)
34
A0 18
AGND
**
A1
52
ACH1 (ACH1 HI)
33
A2
17
ACH9 (ACH1 LO)
66
A3
51
AGND
**
A4
16
ACH2 (ACH2 HI)
65
A5
50
ACH10 (ACH2 LO)
31
A6
15
AGND
**
A7
49
ACH3 (ACH3 HI)
30
B0
14
ACH11 (ACH3 LO)
63
B1
48
AGND
**
B2
13
ACH4 (ACH4 HI)
28
B3
47
ACH12 (ACH4 LO)
61
B4
12
AGND
**
B5
46
ACH5 (ACH5 HI)
60
B6
11
ACH13 (ACH5 LO)
26
B7
45
AGND
**
C0
10
ACH6 (ACH6 HI)
25
C1
44
ACH14 (ACH6 LO)
58
C2
9
AGND
**
C3
43
ACH7 (ACH7 HI)
57
C4
8
ACH15 (ACH7 LO)
23
C5
42
XDAC3
56
C6
7
SGND
62
C7
41
POSREF (reserved for self-calibration)
20
TTL TRG
6
XDAC2
55
GND
*
NEGREF (reserved for self-calibration)
54
CNT0
5
AGND
**
CNT1
39
XDAC0
22
CNT2
4
AGND
**
CNT3
38
XDAC1
21
TMR0
3
AGND
**
TMR1
37
XAPCR
2
XDPCR
1
GND
**
GND
*
EGND
†
*
Digital common ground pins on the SCSI connector are: 35, 36, and 40.
**
Analog common ground pins on the SCSI connector are: 24, 27, 29, 32, 59, 64, and 67.
† EGND is connected to the SCSI connector shell.