Cabling, Signal termination – Measurement Computing USB-2627 User Manual
Page 11
USB-2627 User's Guide
Signal Connections
11
Cabling
Use a CA-68-3R cable (Figure 3) when connecting signals to the SCSI connector.
Figure 3. CA-68-3R cable
Signal termination
TB-100
– screw terminal board that connects to SCSI connector P1 with a CA-68-3R cable. A 19-inch rack
mount kit (
RM-TB-100)
is also available.
The following table lists how TB-100 screw terminals are mapped to the SCSI connector pins.
TB-100 to SCSI connector pin map
TB2 terminal
SCSI pin
TB1 terminal
SCSI pin
+5V
19
ACH0
68
GND
GND
ACH8
34
A0
18
AGND
AGND
A1
52
ACH1
33
A2
17
ACH9
66
A3
51
AGND
AGND
A4
16
ACH2
65
A5
50
ACH10
31
A6
15
AGND
AGND
A7
49
ACH3
30
B0
14
ACH11
63
B1
48
AGND
AGND
B2
13
ACH4
28
B3
47
ACH12
61
B4
12
AGND
AGND
B5
46
ACH5
60
B6
11
ACH13
26
B7
45
AGND
AGND
C0
10
ACH6
25
C1
44
ACH14
58
C2
9
AGND
AGND
C3
43
ACH7
57
C4
8
ACH15
23
C5
42
XDAC3
56
C6
7
SGND
62
C7
41
NC (Note 1)
20
TTL TRG
6
XDAC2
55
GND
GND
GND (Note 2)
GND
CNT0
5
AGND
AGND
CNT1
39
XDAC0
22
CNT2
4
AGND
AGND