Scsi Controller, SCSI-2 SCA-Compatible Backplane

By increasing the buffer size of the onboard video memory from 512 KB to 1 MB (with one, 40-pin 256 K x 16, 70 ns fast-page DRAM), the controller can support 132- column text modes and high resolution graphics with a maximum of 1024 x 768 x 64 K colors. It also provides hardware accelerated bit block transfers (BitBLT) of data.

SCSI Controller

The system board includes two PCI-based Adaptec AIC-7870 fast/wide SCSI-2 controllers (channels A and B) integrated as 32-bit PCI bus masters. The controllers support data path widths of 8-bit (narrow SCSI) at a data transfer rate of 10 MB/sec and 16-bit (wide SCSI) at a data transfer rate of 20 MB/sec. As PCI bus masters, these controllers support data transfer rates of 133 MB/sec.

You can connect up to seven 8-bit narrow SCSI devices or up to fifteen 8-bit narrow and/or 16-bit wide SCSI devices and one controller (maximum of seven 8-bit narrow devices) to each channel. The devices include, for example, tape drives, printers, optical media drives, and others.

The SCSI controller provides active negation outputs, controls for external differential transceivers, a disk activity output, and a SCSI terminator power-down control.

Active negation outputs reduce the chance of data errors by actively driving both polarities of the SCSI bus and avoiding indeterminate voltage levels and common- mode noise on long cable runs. The SCSI output drivers can directly drive a 48 mA, single-ended SCSI bus with no additional drivers.

No additional logic, termination, or resistor loads are required to connect up to seven 8-bit narrow SCSI devices or up to fifteen 16-bit wide SCSI devices to each SCSI-2 channel on the system board.

SCSI-2 SCA-Compatible Backplane

The SCSI-2 SCA backplane for the ProServa PH is configured as two SCSI continuous fast/wide SCSI buses (A and B) for connecting all hot-swap SCA- compatible hard drives installed in the hot-swap bays. This allows fast drive installation and removal, as each hard drive plugs directly into a SCA connector on the backplane. The backplane also acts as the termination point for all installed SCSI hard drives and sets the hard drive IDs.

The backplane also supports up to three SCSI devices installed in the

5 1/4-inch bay, including the installed SCSI-2 CD-ROM reader. The SCSI-2 SCA backplane supports fast/wide SCSI-2 (20 MB per second) data transfers to the 3 1/2- inch hard drives. The backplane also supports SCSI-1 (5 MB per second) and fast/narrow SCSI-2 (10 MB per second) devices. See Chapter 5, "SCSI Hot-docking Backplane," for information on configuring the backplane.

ECC Memory Module

The server system comes with one ECC memory module installed. The module provides up to 384 MB of high-speed memory (see Table 1-1 for system memory configuration). If you need more memory, you can install an additional optional ECC

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.