PCI/IDE Ports

The system board supports two high-performance PCI/IDE ports: a primary port and a secondary port on the system board. Each port supports up to two devices for a total of four IDE devices. The primary PCI/IDE port has an enhanced IDE interface that supports PIO Mode 4 devices with 16 MB per second 32-bit wide data transfers on the high-performance PCI local bus. Each port supports Ultra DMA/33.

The installed hard drive is connected to the primary PCI/IDE connector with a three-connector cable. If a CD-ROM drive is included in the system, it is connected to the secondary PCI/IDE port with a three-connector cable. A second device can be added to the primary PCI/IDE port.

Parallel Interface

The system has a 25-pin bidirectional parallel port on the system board. Port specifications conform to the IBM-PC standards. The port supports Enhanced Capabilities Port (ECP) and Enhanced Parallel Port (EPP) modes for devices that require ECP or EPP protocols. The protocols allow high-speed bi- directional transfer over a parallel port and increase parallel port functionality by supporting more devices.

The BIOS has automatic ISA printer port sensing that works with most devices. If the BIOS detects an ISA printer port mapped to the same address, the built-in printer port is disabled. (Verify in the BIOS Setup that printer ports mapped to the same address are enabled or disabled appropriately.) The BIOS also sets the first parallel interface port it finds as LPT1 and the second port it finds as LPT2. The interrupt is set at IRQ7 via the BIOS Setup utility. Software-selectable base addresses are 228h, 378h, and 278h.

Sets of I/O addresses for the parallel port are given in the following table (see Section 2, “System Configuration,” for interrupt levels). This is a list of all possible configurations; the parallel port uses only one set.

 

Parallel Port Addresses

 

 

Starting I/O Address

Port

 

 

378

LPT1

278

LPT2

228

LPT3

378

LPT1

278

LPT2

228

LPT3

 

 

Parallel interface signals are output through the system board’s 25-pin, D-subconnector. The connector is located at the back of the system unit.

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NEC VT 300i manual PCI/IDE Ports, Parallel Interface, Parallel Port Addresses, Starting I/O Address Port

VT 300i specifications

The NEC VT 300i is a versatile and compact LCD projector designed for educational environments and business presentations. With its impressive combination of features and user-friendly design, the VT 300i has made a mark as a reliable choice for professionals and educators alike.

One of the standout features of the VT 300i is its brightness. With a robust output of up to 3,000 ANSI lumens, the projector ensures that images are clear and vivid, even in well-lit rooms. This brightness level allows users to deliver impactful presentations without the concern of image washout due to ambient light conditions. Coupled with a high contrast ratio of 400:1, users can expect sharp, detailed images that enhance the overall viewing experience.

The VT 300i showcases advanced DLP projection technology, which is known for producing sharp images with excellent color accuracy. The inclusion of NEC’s proprietary Intelligent Auto Setup feature allows the projector to adjust to various input sources automatically, making setup quick and hassle-free. This ensures that even those who may not be tech-savvy can operate the device with ease.

Another notable characteristic is the VT 300i’s portability. Weighing in at a little over 5 pounds and featuring a compact design, the projector is easy to transport between different locations. This portability is further enhanced by its integrated carrying handle and durable casing, making it suitable for frequent travel.

The connectivity options of the VT 300i also cater to modern technology needs. It includes multiple input terminals, such as HDMI, VGA, and USB, enabling seamless integration with various devices like laptops, tablets, and other media players. Additionally, it supports both wired and wireless presentations, making it versatile for different presentation settings.

User-friendliness extends to the maintenance aspect as well. The VT 300i incorporates an easily accessible filter and lamp compartment, simplifying the process of replacements and ensuring minimal downtime. With a lamp life of up to 5,000 hours in eco mode, it offers longevity and cost-effectiveness.

In conclusion, the NEC VT 300i stands out with its combination of brightness, advanced projection technology, and user-friendly features. Whether in an educational setting or a business meeting, it offers reliability and quality, making it a popular choice for users seeking a competent and portable projector.