What is “i.link, I.link connection, I.link branched connection – JVC HM-DH40000U User Manual

Page 61: I.link connection examples

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.

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.

A to D: i.LINK-compatible

devices

i.LINK cable

A to F: i.LINK-compatible devices
B, C:

Devices with three or more i.LINK connectors

Good connection examples
(A to D: i.LINK-compatible devices)
The connections below do not form a loop.

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

C: Device with three i.LINK connectors

NOTES:

●

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.
For details, refer to the instruction manual for the connected device.
Furthermore, data is not passed along by this VCR when "POWER SAVE" is set to "ON" on this VCR (

੬

pg. 57) and the VCR is

turned off.

●

The maximum data transfer speed supported by the i.LINK connector on this VCR is 400Mbps (approximately 400 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.

●

Use the S400 i.LINK cable.

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.

HM-DH40000U-EN53-63

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