System Features
EBX-18 Hardware Reference Manual
17
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 both +5VDC
pins and all ground pins to prevent excess voltage drop.
Note:
The +3.3VDC, +12VDC and -12VDC inputs on the main power connector are only required for
PC/104-
Plus
and PC/104 expansion modules that require these voltages.
E
XPANSION
C
URRENT
L
IMITS
Table 5 lists the maximum current available for expansion for the power supply voltages.
Table 5: Expansion Current Limits
Voltage
Signal Name
Maximum Expansion Current
+V
IN
(9 – 15V)
V_WIDE
8 A
+3.3 V
V3P3_ATX
6 A
+5 V
V5_ATX
8 A
+12 V
V12_ATX
1 A
-12 V
V12N_ATX
0.5 A