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JVC HM-DH30000U manual What is i.LINK?, Link Connection, Link Branched Connection

Models: HM-DH30000U

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What is “i.LINK?”

“i.LINK” is a digital serial interface that allows devices equipped with an i.LINK connector to exchange digital video signals, digital audio signals, and device control signals bi-directionally over a single cable.

i.Link refers to the IEEE1394-1995 industry specification and extensions thereof. The logo is used for products compliant with the i.Link standard.

This VCR uses a four-pin i.LINK connector to input and output MPEG2 video signals, audio signals, and control signals. The i.LINK connector is also used as an input for DV compressed signals from the DV output of a digital video camera.

i.LINK Connection

i.LINK-compatible devices can be connected in daisy chain fashion using i.LINK cables.

i.LINK cable

 

 

 

A

B

C

D

 

 

A to D: i.LINK-compatible

 

 

 

devices

Any two devices in the daisy chain can exchange data bi-directionally, even if there are other devices connected between them.

i.LINK also supports a “repeater function” that passes input MPEG2 and DV signals through to the next device in the chain.

i.LINK Branched Connection

If you are connecting a device that is equipped with three or more i.LINK connectors, you can also branch the i.LINK connection.

i.LINK cable

 

 

 

 

 

 

 

 

 

A

 

 

B

 

C

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A to F: i.LINK-compatible devices

B, C: Devices with three or more i.LINK connectors

i.LINK Connection Examples

Examples of good i.LINK connections and bad i.LINK connections are shown below. The digital signals flow to all connected devices. When connecting i.LINK devices, make sure that the devices are connected in such a way that digital signals do not return (loop back) to the device that output them. Looped connection is not permitted.

Good connection examples

(A to D: i.LINK-compatible devices)

The connections below do not form a loop.

A

 

B

 

 

 

 

A

 

B

 

C

 

 

 

 

 

 

 

A

 

B

 

C

 

D

 

 

 

 

 

 

 

 

 

 

Bad connection examples

(A to D: i.LINK-compatible devices) The connections below form a loop.

A

 

B

 

 

 

 

 

 

 

A

 

 

B

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

B

 

C

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C: Device with three i.LINK connectors

NOTE:

●You can connect as many as 63 devices (including this VCR) through an i.LINK connection. If you use a branched i.LINK connection, however, the maximum path length on a branch is 17 devices.

●In the case of a personal computer and some other devices, data is not passed along by those devices if the device power is off. Furthermore, data is not passed along by this VCR when “FRONT DISPLAY” is set to “OFF” on this VCR (☞ pg. 56).

For details, refer to the instruction manual for the connected device.

●The maximum data transfer speed supported by the i.LINK connector on this VCR is 200Mbps (approximately 200 megabits per second). The maximum data transfer speed that is actually attained may be slower depending on how this VCR is used or if a device with a slower transfer speed is connected to this VCR.

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Page 59
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JVC HM-DH30000U manual What is i.LINK?, Link Branched Connection, Link Connection Examples
Page 58 Page 60

HM-DH30000U specifications

The JVC HM-DH30000U is a versatile professional-grade digital video recorder that merges the capabilities of both VHS and digital formats, marking a significant achievement in video technology. This unique device serves as a bridge between traditional analog tapes and modern digital workflows, making it an ideal tool for video production, archiving, and playback.

One of the standout features of the HM-DH30000U is its ability to play and record in both S-VHS and VHS formats. This broad format compatibility ensures that users can easily access and preserve their existing VHS tape collections while also leveraging new video technologies. The built-in transcoding capabilities mean that VHS tapes can be converted into a digital format without sacrificing quality, making it easier to store and edit content on digital platforms.

In terms of video quality, the HM-DH30000U supports high-resolution output formats, ensuring that the recordings maintain a high level of detail and clarity. The machine is equipped with JVC’s advanced digital processing technologies that enhance the quality of both playback and recording. The Digital Frame Sync technology helps in eliminating jitter and enhancing the overall quality of video playback, which is crucial for professional applications.

The HM-DH30000U also includes features such as IEEE 1394 FireWire connectivity, allowing for easy connection to digital video cameras and other equipment. This connection enables seamless transfer of video footage and simplifies the editing process by providing a direct digital link. The unit also supports various input and output options, including composite, S-Video, and component video outputs, making it a flexible addition to any video production setup.

Furthermore, the recorder incorporates a user-friendly interface, allowing for straightforward navigation and operation. The on-screen menus make it easy to access settings and make adjustments, accommodating both novice users and seasoned professionals. The HM-DH30000U is designed for durability and reliability, making it a trusted companion for any video enthusiast or professional.

Overall, the JVC HM-DH30000U stands out as a functional and reliable device that combines the best of both analog and digital worlds, making it a valuable asset for those looking to preserve, edit, and create video content with ease. Its integration of advanced technologies and user-friendly features ensures that it meets a diverse range of video production needs.