DIGITAL-LOGIC MPC25/L, Техническое руководство пользователя

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DIGITAL-LOGIC AG
MPC25/26 Manual V1.1
25
3.7. Ground Potential
All interface connectors are permanently in contact with the ground
(earth). The system must be grounded with a ground wire (colors
green with yellow stripes). [NFPA 7087]
The ground must have the capacity to safely conduct any current that
might be imposed thereon. The ground is wired separately from the
electrical ground.
The leakage current is: 5 uA at 20 V.
The ground cable must be connected separately to the chassis or through the power connector.
Pin Left Middle Right
Signal GND Shield Power
8-20V
3.8. Power On/Off Switch
The power switch is clearly identified and located on the front panel. [MIL-STD-545M]
The power on/off switch does not cut all electricity to the system. In the “off” position, a microcontroller is still
working, to supervise wakeup events (switch, Wake on LAN). [MIL STD 454M] In this state, the system is
consuming approximately 300mW.
To turn on the system, the power switch must be pressed for at least one second. While running, the system
can be forced to shut off by pressing the on/off switch for 4 seconds.
Be sure to disconnect the power supply before opening the system.
3.9. Safety: Batteries Inside the Device
Caution, Electric Shock!
The system has an integrated backup lithium battery (RTC). The battery compartment is not
vented. The system casing prevents the operator from a possible exploding battery cell.