EPM-32 Reference Manual
21
System Features
Power Supply
P
OWER
C
ONNECTORS
Main power is applied to the EPM-32 through a 10-pin polarized connector. See page 15 for the
JS9 power connector location.
Warning!
To prevent severe and possibly irreparable damage to the system, it is critical that
the power connectors are wired correctly. Make sure to use all +5VDC pins and all
ground pins to prevent excess voltage drop. Some manufacturers include a pin-1
indicator on the crimp housing that corresponds to pin-10 of the pinout shown in
Figure 13.
Table 3: JS9 Main Power Connector Pinout
JS9
Pin
Signal
Name
Description
1
Ground
Ground
2
+5VDC
Power Input
3
Ground
Ground
4
+12VDC
Power Input
5
Ground
Ground
6
–12VDC
Power Input
7
+3.3VDC
Power Input
8
+5VDC
Power Input
9
Ground
Ground
10
+5VDC
Power Input
Figure 13 shows the VersaLogic standard pin numbering for this type of 10-pin power connector
and the corresponding mating connector.
Figure 13. JS9 and CBR-1008 Pin Numbering
4
4
2
4
6
8
10
1
3
5
7
9
JS9
CBR-1008
1 3
5 7
9
2 4
6 8
10
Some manufacturers include
a pin-1 indicator that
corresponds to pin-10 of the
power connector pinout.
