User`s manual

DIGITAL-LOGIC AG MPC40/A/B/C, MPC41 Manual V1.4C
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3 SAFETY REGULATIONS
The verification of the safety is followed to the guideline adapted from the US Army Communication and
Electronics Command Supplement (119 version) 1 to AR385-16.
This sign indicates an important information.
This sign indicates an information that may injure the health.
This sign indicates an information that may destroy the device.
This sign indicates voltages above 28Volts.
3.1 Safety: PowerOn Indicator
The green Power indicator is located in the front of the computersystem [MIL-STD-1472D].
3.2 Safety: Coded and Marked Connectors
All connectors (plugs and receptacles) are coded and marked to prevent insertion of the wrong plug into a
receptacle or other mating unit [MIL-STD-1472D]. Depending of the mounted replicator unit, the connectors
are PC-Style, DSUB or MIL versions.
The male connectors are deenergized when disconnected [MIL-STD-454M].
3.3 Safety: Protection of the Supply Input Current
The computersystem protects the internal supply from overcurrent by an internal fuse of 6.3amp.
In case of an overcurrent the fuse opens the main circuit and interrupts the fault current [MIL-
STD-454M]
3.4 Safety: Wrong Polarisation on the Power Input
The supply input is protected against wrong polarisation of the supply input with a seriediode.
The diode withstands up to a voltage of 28Volts.