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1.6 Installation and Power Up/Reset
1.6.1 Board Keying
The 6U VPX backplane specification requires all backplane slots to have three
guide pins: one above the P0 connector, one below the P2 connector, and one
below the P6 connector. In addition to providing correct alignment, these pins are
keyed to prevent cards from being inserted into incorrect backplane slot(s) to
avoid electrical incompatibility.
The board has receptacles for these guide pins (see the Connectors section). By
default, these are not keyed. Please contact the factory to discuss keying
requirements.
1.6.2 Board Installation Notes
• Keying may dictate the backplane slot(s) into which the board can be
inserted.
• Air‐cooled versions have an injector/ejector handle to ensure that the back‐
plane connectors mate properly with the backplane. The captive screws at
the top and bottom of the front panel allow the board to be tightly secured in
position, which provides continuity with the chassis ground of the system.
• Conduction‐cooled versions have screw‐driven wedge locks at the top and
bottom of the board to provide the necessary mechanical/thermal interface.
Correct adjustment requires a calibrated torque wrench with a hexagonal
head of size 3/32ʺ (2.38 mm), set to between 0.6 and 0.8 Nm.
• In an air‐cooled development enclosure, when taking I/O connections from
the backplane connectors, use of GE's I/O modules (or some equivalent sys‐
tem) ensures optimum operation with regard to EMI.
1.6.3 Power Requirements
The SBC622 utilizes the VS1 and VS3 power supplies from the VPX backplane.
The SBC622 requires up to 16 W from VS1 (@12V), and 38 W from VS3 (@5 V)
The SBC622 does not connect to the VS2 power pins.
Live insertion as defined in VITA 1.4 is not supported on SBC622.
• The VS1 and VS3 rails are used for SBC622 circuits and at the PMC site. The
VCC_12V_AUX and VCC_‐12V_AUX rails are only used at the PMC sites.
Aggregate power load is expected to be 60 W maximum for the main SBC622
board, plus a maximum of 7.5 W for each of the PMC sites. Additional current
loading may be supported at the PMC site to the limit of the backplane and PMC
site connector capacities.
1. Power measurements made while running BurnInTest Pro CPU Stress Testing at 100% Utilization.
1
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Installation and Setup 27
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