Yamaha v4 Manuel du propriétaire télécharger pdf (Page 13)

DME Setup Manual 13

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Connecting multiple DME units to a computer via Ethernet cables

In the following two cases, a USB cable should not be used to connect your computer and DME units for

actual operation; instead, you should make the necessary connections via Ethernet cables.

• Two or more DME units are to be controlled in a single device group (using a Network switch).

• When the distance between the DME unit and computer is too great for a USB connection.

n If a company or office network is to be used for this purpose, it will be necessary to switch back and forth between the DME

network and the regular network. In such a case, we recommend connection via USB or the use of a commercially-available

Ethernet/USB interface.

Setting example

n When multiple DME units are being used, the DME units are controlled in “device groups.” Since all DME units in a device group

are controlled via the group’s master DME unit, one DME unit in each group must be designated as the group master.

n The device group master DME unit can be connected to the computer via a USB cable. Slave DME units can be connected to

the group master via USB cables.

n Use a network switch that is capable of 100Base-TX operation.

n The maximum length of cables that can be used to connect DME units to a network switch is 100 meters. Proper operation at

this length, however, will depend on the quality of the network switch and cables used, and cannot be guaranteed.

n Use CAT5 STP (shielded twisted pair) type cable to maximize resistance to electromagnetic interference.

n If you are using multiple DME series units, set Link Mode on each unit to the same setting. Yamaha recommends that you select

100Base-TX for the Link Mode setting.

Advanced Setup

Device Group

Group Master

DME4io-C

(IP Address: 192.168.000.002)

Ethernet cable

Network Switch

Ethernet cable

DME8o-C

(IP Address: 192.168.000.003)

Ethernet cable

DME64N

(IP Address: 192.168.000.004)

Computer

(IP Address: 192.168.000.001)

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Yamaha v4 Manuel du propriétaire Page 13