General Information (Input/Output Cabinet)
The Input/Output (I/O) cabinet is the utility power input cabinet for the UPS.
The I/O cabinet provides the primary connection points for 3-wire AC connections to the UPS. Facility 3-phase wiring is connected to the bus in the cabinet.
When the system is in the maintenance bypass, the 3-wire power is also output via the I/O cabinet.
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| Illustration 1 | g01258586 |
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General overview of the I/O cabinet (1) Fans (2) Entry for the top cable (3) Bus bars (4) Switches (5) Right panel (6) GSM option (7) Entry for the bottom cable | |
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| Illustration 2 | g01258608 |
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View of the I/O cabinet with single input and no switches (8) System (output bus) (9) System (input bus) (10) MMU (input bus) (11) Output bus | |
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| Illustration 3 | g01258619 |
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View of the I/O cabinet with single input and three switches (12) Maintenance bypass switch (13) Input isolation switch (14) Output isolation switch | |
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| Illustration 4 | g01258702 |
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View of the I/O cabinet with dual input and no switches (15) Bypass input bus | |
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| Illustration 5 | g01258827 |
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View of the I/O cabinet with dual input and two switches | |
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| Illustration 6 | g01258832 |
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View of the I/O Cabinet with dual input and three switches (16) Bypass input switch | |
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| Illustration 7 | g01258837 |
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View of the I/O cabinet right panel (17) External source SYNC relay option (18) Transformer T1 (19) Fuses F13 - F17 | |
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| Illustration 8 | g01258877 |
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Configurations for the I/O cabinet | |
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