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Redundant, hot-swappable DC power modules are located at the rear of the docking station. The power up sequence can only begin when the tray is fully seated in the docking station. This ensures that the main board does not power up until the system is properly seated.
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Do not connect the wire labeled GND if using the preferred method of grounding a DC version system. Refer to the Grounding the IMG 2020 topic for more information. |
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DC power component | Specification | ||
Input power | Power must conform to the following specifications: -48 V DC (nominal) 5A Range: -40 to -60 V DC, 6A maximum (-48 V DC nominal) | ||
Grounding | When connecting the IMG 2020 to ground, the preferred method is through the grounding lug located on the rear of the IMG 2020. Refer to the Grounding the IMG 2020 topic for more information on this. | ||
Power module | Each DC power module has a -48 V DC feed. When using redundant DC power modules, there is a -48 V DC feed on each module. The external power source connecting to the IMG 2020 can be either a single non-redundant power source or two separate power supplies. Typically one of the external power sources is battery backed. The DC to DC power module provides control for dual hot-swappable, redundant power. | ||
-48 V DC wiring | Connect an external DC power source to the IMG 2020 at the DC power module terminals. The DC power module must be wired directly to a -48 V DC fused power source. To connect an external power source to the IMG 2020, either use the supplied DC Power cable or connect using #14 - 16 AWG machine tool wire (MTW). For more information, refer to DC Power Cables.
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