VPX4812A/4814A
User’s Manual
Single-Slot 3U VPX Bus XMC Carrier Card/Switch Card Module
Acromag, Inc. Tel: 248-295-0310 - 20 - www.acromag.com
10.0
Specifications
Physical
Height:
100.00 mm (3.937 in.)
Width:
160.00 mm (6.299 in.)
Board Thickness:
1.575 mm (0.062 in.)
Unit Weight (air-cooled):
5.10 Oz (0.14 Kg)
Unit Weight (conduction-cooled):
8.34 Oz (0.24 Kg)
Unit Weight (REDI):
12.37 Oz (0.35 Kg)
Front Panel
VPX4812A-LF and VPX4814A-
LF front panel is 1.0” based on VITA 48.1. Please contact factory for IEEE
1101.10 1.0” and 0.8” front panel options.
Power Requirements
The VPX4812A is aligned with the latest power distribution recommendations from VITA 65.0-2019
which states that Plug-In Modules should only use VS1 (12V), 3.3V_AUX, and VBAT as power inputs from
the backplane and derive all other voltage rails from that. The VPX4812A/VPX4814A does not utilize VS2
(3.3V) or VS3 (5V) from the backplane.
Power Consumption
No XMC Card Installed:
+3.3V (VS2):
Unused
+5V (VS3):
Unused
+12V (VS1):
0.4A typ.
1.0A max.
XMC Card Installed
1
:
+3.3V (VS2):
Unused
+5V (VS3):
Unused
+12V (VS1):
20A max.
2
VPWR (12V):
8A
3
VPWR (5V):
8A
3
Note 1:
The power supplied to the XMC card can be toggled between 5V or 12V depending on
the card’s requirements.
Note 2:
The current carrying capacity of the VPX connector interface is the limiting factor for
power delivery.
Note 3:
The limiting factor is the current carrying capacity of the XMC connectors. With 8 VPWR
pins rated @1A per pin, the maximum current draw capability is 8A.