Download User Manual SP232 Serial Extended Function Module (for 1502B/C

Parallel Protocol
Signal
/IR
Pin
7
Pin
29
+5 volts
+5 return
+16 volts
+16 return
9
8
12 & 13
10 & 11
nc
21
nc
nc
Analog return
/TRIG
15
14
nc
nc
Signal
PC0
common
Hardware Protocol
The available hardware signals are:
Input/Output (bi-directional):
Connector Pin #
D0
least significant data bit
3
D1
data bit
1
D2
data bit
24
D3
data bit
22
D4
data bit
20
D5
data bit
18
D6
data bit
16
D7
most significant data bit
14
(Data lines are driven by a 74HC245 and are pulled down by 10K at the
Option Port interface)
Output only (generated by 150XB/C):
A0
A1
A2
SP232 User Manual
least significant address bit
address bit
address bit
12
10
8
6–3