Power Supply

The auto-ranging 525 watt power supply, designed to minimize electromagnetic interference (EMI) and radio frequency interference (RFI), provides sufficient power for the system. The power supply automatically switches between these input voltage ranges:

100-120 VAC at 50/60 Hz; 12 A maximum current

200-240 VAC at 50/60 Hz; 7 A maximum current

The power supply has three DC peripheral connectors for the accessible drive bays, two mini-output connectors for use with the 3 1/2-inch diskette drives, one TTL output connector for use with 5 1/4-inch peripherals or a

3 1/2-inch hard drive, and a separate connector that provides power directly to the SCSI-2 SCA backplane.

An integral 35 cubic feet per minute (cfm) fan cools the power supply and helps to cool the interior of the server.

EISA Expansion Slots

The six EISA bus slots on the system board provide for expansion and performance enhancement. Two of these slots share a common chassis I/O expansion slot with two of the PCI slots. If you use these EISA slots, you cannot use the PCI slots and visa versa.

All six slots have the capability of being bus masters. When EISA masters arbitrate for the bus, not all slots are created equal. The following pairs of slots share arbitration requests: 1 and 2, 3 and 4, and 5 and 6. Therefore, in the scheme of letting EISA masters take over the bus, ownership of it occurs in the following sequence: 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, etc.

The EISA bus, an extension of the Industry Standard Architecture (ISA) bus, provides:

32-bit memory addressing

Type A transfers at 5.33 MB per second

Type B transfers at 8 MB per second

burst transfers at 33 MB per second

8-, 16-, or 32-bit data transfers

automatic translation of bus cycles between EISA and ISA masters

interrupt sharing.

Since EISA is fully backward compatible with ISA, you can install old or new ISA

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NEC PH133 manual Power Supply, Eisa Expansion Slots
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PH133 specifications

The NEC PH133 is a state-of-the-art projector that has been designed to deliver impressive visual performance for a range of applications, including business presentations, educational settings, and home entertainment. This model stands out due to its combination of advanced technologies, high-quality specifications, and user-friendly features.

One of the focal points of the NEC PH133 is its exceptional brightness, boasting a lumens count that allows it to perform effectively even in well-lit environments. This makes it ideal for large conference rooms or classrooms where ambient light can impact visibility. The projector utilizes DLP (Digital Light Processing) technology, ensuring sharp images and vibrant colors that capture the audience's attention.

Another key feature of the NEC PH133 is its high resolution, which supports Full HD content. This attribute is crucial for users who rely on detailed graphics and texts, allowing for a clear and crisp display that enhances overall presentation quality. Additionally, the projector supports a wide range of resolutions, making it versatile for various content types, from text-heavy slides to high-definition videos.

The NEC PH133 also includes an array of connectivity options. With HDMI, VGA, and USB ports, users can easily connect laptops, video players, and other devices without hassle. The projector supports both wired and wireless connections, accommodating modern devices and ensuring flexibility during presentations.

Moreover, the projector’s built-in speaker provides enhanced audio capabilities, eliminating the need for external sound systems in smaller settings. This feature streamlines setup, making it easier for users to get started quickly.

In terms of design, the NEC PH133 is compact and lightweight, making it portable for users who need to move between different locations. Its intuitive control panel and remote control simplify operation, ensuring that anyone can navigate through settings without extensive technical knowledge.

In summary, the NEC PH133 combines high brightness, Full HD resolution, versatile connectivity, and portable design, making it a formidable choice for anyone in need of a reliable projector. Its thoughtful inclusion of user-friendly features and strong performance capabilities positions it as a strong contender in the modern projector market. For those seeking a solution that seamlessly integrates performance with usability, the NEC PH133 represents an excellent option.
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