Bengal (VL-EPMe-30) Reference Manual
19
System Features
Power Supply
Power Connectors
Main power is applied to the Bengal through a 10-pin polarized connector (J20), with mating
connector Berg 69176-010 (housing) + Berg 47715-000 (pins). See Table 6 for connector pinout
and page 10 for location information.
CAUTION:
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 +5 V
DC
pins and all ground
pins to prevent excess voltage drop. The power connector is not fuse or diode
protected. Proper polarity must be followed, otherwise damage will occur. Some
manufacturers include a pin-1 indicator on the crimp housing that corresponds to pin-10
of the pinout shown in Figure 12.
Table 6: J20 Main Power Connector Pinout
Pin
Signal
Pin
Signal
1
Ground
2
+5 V
DC
3
Ground
4
+12 V
DC
(Note)
5
Ground
6
-12 V
DC
(Note)
7
+3.3 V
DC
(Note)
8
+5 V
DC
9
Ground
10
+5 V
DC
Note:
This input is only necessary for expansion modules plugged into either
the PC104 PCI connector (J11) or the PCIe/104 OneBank connector (J10)
that require this voltage.
Figure 12 shows the VersaLogic standard pin numbering for this type of 10-pin power connector
and the corresponding mating connector.
Figure 12. J20 and VL-CBR-1008 Pin Numbering
4
4
2
4
6
8
10
1
3
5
7
9
J20
VL-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
