User's Manual

PMAC VME Hardware Reference Manual
PMAC VME Connector Pinouts 23
J5 JOPT (34-Pin Connector)
Front View
Pin # Symbol Function Description Notes
1 MI8 Input Machine Input 8 Low is true
2 GND Common PMAC Common
3 MI7 Input Machine Input 7 Low is true
4 GND Common PMAC Common
5 MI6 Input Machine Input 6 Low is true
6 GND Common PMAC Common
7 MI5 Input Machine Input 5 Low is true
8 GND Common PMAC Common
9 MI4 Input Machine Input 4 Low is true
10 GND Common PMAC Common
11 MI3 Input Machine Input 3 Low is true
12 GND Common PMAC Common
13 MI2 Input Machine Input 2 Low is true
14 GND Common PMAC Common
15 MI1 Input Machine Input 1 Low is true
16 GND Common PMAC Common
17 MO8 Output Machine Output 8 If sinking output, low is true. If source output,
high is true.
18 GND Common PMAC Common
19 MO7 Output Machine Output 7 " "
20 GND Common PMAC Common
21 MO6 Output Machine Output 6 " "
22 GND Common PMAC Common
23 MO5 Output Machine Output 5 " "
24 GND Common PMAC Common
25 MO4 Output Machine Output 4 " "
26 GND Common PMAC Common
27 MO3 Output Machine Output 3 " "
28 GND Common PMAC Common
29 MO2 Output Machine Output 2 " "
30 GND Common PMAC Common
31 MO1 Output Machine Output 1 " "
32 GND Common PMAC Common
33 +V Input/Output +V Power I/O +V = +5V to +24V
+5V out from PMAC, +5 to +24V in from
external source, diode isolation from PMAC
34 GND Common PMAC Common
This connector provides means for eight general-purpose inputs and eight general-purpose outputs. Inputs and
outputs may be configured to accept or provide either +5V or +24V signals. Outputs can be made sourcing with
an IC (U11 to UDN2981) and jumper (E1 & E2) change. E7 controls whether the inputs are pulled up or down
internally.