IEI Technology TANK-700, User Manual

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TANK-700 Embedded System
Page 42
3.11 Redundant Power
The TANK-700 is a system that supports redundant power. The redundant power input
increases the reliability of the system and prevents data loss and system corruption from
sudden power failure. The system can instantly and uninterruptedly switch to the second
power input when the main power is unavailable or in low voltage capacity.
There are two power connectors on the rear panel. Power 1 connector is a 4-pin terminal
block that supports ACC On signal. Power 2 connector is a DIN connector that can directly
connect to a power adapter. The supported power input voltages are:
ƒ
Power 1 (terminal block)
: 9 V (+/-0.3 V) ~ 36 V
ƒ
Power 2 (DC jack)
: 10.5 V (+/-0.3 V) ~ 36 V
Figure 3-35: Power Connectors
When the system is in ACC On mode, the main power input is from Power 1 connector;
when the system is in ACC Off mode, the main power input is from Power 2 connector.
The ACC on/off mode is selected by the ACC mode switch on the rear panel (
Figure
3-13
).
The following sections describe how the redundant power works in ACC On mode and
ACC Off mode.