Command Control via the Network (continued)

2. Response code / Error code ("h" shows hexadecimal)

The connection ID is attached for the TCP#23's response / error codes are used. The connection ID is same as the sending command format.

(1) ACK reply: 06h + ××h

(××h : connection ID)

(2)NAK reply: 15h + ××h

(3)Error reply: 1Ch + 0000h + ××h

(4)Data reply: 1Dh + xxxxh + ××h

(5)Authentication error reply: 1Fh + 0400h + ××h

(6) Projector busy reply: 1Fh + ××××h + ××h

When the projector is too busy to receives the command ,the projector returens the error code.

In such a case, check the sending code and send the same command again.

Automatic Connection Break

The TCP connection will be automatically disconnected after there is no communication for 30 seconds after being established.

Authentication

The projector does not accept commands without authentication success when authentication is enabled. The projector uses a challenge response type authentication with an MD5 (Message Digest 5) algorithm.

When the projector is connected to a LAN, a random 8 bytes will be returned if authentication is enabled. Bind this received 8 bytes and the authentication password, and digest the data with the MD5 algorithm, and add it in front of the

commands to send.

Following is a sample of authentication process.

Authentication password: password (example)

Random 8 bytes: a572f60c (example)

1)Select a projector and receive the random 8 bytes from the projector.

“a572f60c”

2)Bind the random 8 bytes and the authentication password.

“a572f60cpassword”

3)Digest this bound with MD5 algorithm.

“e3d97429adffa11bce1f7275813d4bde”

4)Add this code in front of the commands and send the data.

“e3d97429adffa11bce1f7275813d4bde” + [command].

5)When the sent data is correct, the command will be performed and the reply data will be returned. Otherwise, an authentication error will be returned.

NOTE • As for the transmission of the second or subsequent commands, the authentication data can be omitted when the same connection.

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Hitachi CP-WU8450, CP-WX8255, CP-WU8440, CP-SX8350, CP-X8160 user manual Automatic Connection Break, Authentication
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CP-X8160, CP-WU8450, CP-SX8350, CP-WX8255, CP-WU8440 specifications

Hitachi has established itself as a leader in the projector market, offering a range of innovative and high-performance projectors designed to meet the needs of various users. Among their notable models are the Hitachi CP-WU8440, CP-WX8255, CP-SX8350, CP-WU8450, and CP-X8160. These projectors incorporate advanced technologies and unique features that set them apart in the industry.

The Hitachi CP-WU8440 is a high-performance WUXGA projector designed for large venues and classrooms where superior image quality is paramount. It boasts a brightness of 8,500 lumens, ensuring vibrant visuals even in well-lit environments. The CP-WU8440 incorporates 3LCD technology, which delivers excellent color accuracy and a remarkable contrast ratio, making it ideal for presentations, multimedia displays, and educational purposes. Additionally, it offers extensive connectivity options, including HDMI, VGA, and LAN, making integration into various systems easy.

The CP-WX8255 is another standout model, featuring WXGA resolution and a brightness level of 5,500 lumens. This projector is especially well-suited for meeting rooms and educational settings that require reliable performance and sharp image quality. The CP-WX8255 has an impressive lamp life, allowing for extended use between replacements, which reduces overall maintenance costs. With its lightweight design, it's also portable, catering to users who need to move their projector frequently.

The Hitachi CP-SX8350 offers a balance of performance and affordability. With XGA resolution and a brightness of 4,500 lumens, this projector is perfect for smaller venues and classrooms. Its compact size and lightweight design make it easy to transport and install. The CP-SX8350 features Hitachi's high-quality lens technology, enabling it to project clear images even at a short throw distance.

The CP-WU8450 projector excels in ultra-high-definition image quality, making it perfect for environments where detail matters. With a brightness output of 8,000 lumens, it is suitable for large auditoriums and conference halls. This model supports wide color gamut technology, producing more vibrant colors. Additionally, its comprehensive connectivity options, including wireless capabilities, enhance flexibility and usability.

Lastly, the Hitachi CP-X8160 is designed for exceptional performance in professional settings. With a brightness of 6,500 lumens and XGA resolution, it delivers sharp images and vivid colors. The CP-X8160 also features advanced image processing technology, which enhances resolution and minimizes distortion, providing a superior viewing experience.

Together, these Hitachi projectors demonstrate the brand's commitment to quality, performance, and innovative technology, making them suitable choices for diverse applications, from business presentations to educational environments.
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