B-4
Connector Pin Assignments
Table B-2. Main I/O Connector Pin Assignments
for the DAS-8/PGA(G2)
Pin
Name
Function
1
+12V
+12V power from host computer
2
CLK0
82C54 C/T0 clock input
3
OUT0
82C54 C/T0 output
4
CLK1
82C54 C/T1 clock input
5
OUT1
82C54 C/T1 output / conversion clock output
6
OUT2
82C54 C/T2 output
7
OP1
Digital output bit 0
8
OP2
Digital output bit 1
9
OP3
Digital output bit 2
10
OP4
Digital output bit 3
11
DIG COM
Digital common
12
IN7
−
Analog input channel 7 (
−
)
13
IN6
−
Analog input channel 6 (
−
)
14
IN5
−
Analog input channel 5 (
−
)
15
IN4
−
Analog input channel 4 (
−
)
16
IN3
−
Analog input channel 3 (
−
)
17
IN2
−
Analog input channel 2 (
−
)
18
IN1
−
Analog input channel 1 (
−
)
19
IN0
−
Analog input channel 0 (
−
)
20
−
12V
−
12V power from host computer
21
GATE0
82C54 C/T0 gate input
22
GATE1
82C54 C/T1 gate input
23
GATE2
82C54 C/T2 gate input
24
INT_IN
External interrupt input / external clock source input
25
IP1
Digital input bit 0 /
Digital trigger input
26
IP2
Digital input bit 1
27
IP3
Digital input bit 2
28
DIG COM
Digital common
29
+5V
+5V power from host computer
30
IN7+
Analog input channel 7 (+)
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