Cloud-electronics VTX-WM1 Manual do Utilizador descarregar pdf (Página 7)

VTX-WM1 Installation Guide v1.2 7

Networking principles

The VTX-WM1 card communicates with a computer – or the building’s IT system - using standard

IP protocols over Ethernet. Physically, connections are made using CAT-5 cabling (4-pair UTP)

terminated with RJ-45 connectors.

If only one amplier is to be used, it may be connected directly to a computer (as in Step 11 of

the Installation Procedure), or connected to the IT infrastructure once it has been assigned a

compatible IP address.

In systems where more than one VTX amplier is being installed in a rack (or racks), each rack

should ideally* contain an Ethernet switch (10/100baseT or 10/100/1000baseT). This should have a

minimum of (N+2) ports, where N is the number of ampliers the rack contains. Each amplier’s

VTX-WM1 card should be connected to a port on the switch, using a standard CAT-5 network

cable. The switch should then be connected into the building’s IT infrastructure at the nearest

convenient point via structured cabling.

SWITCH SWITCH

SWITCH

VTX #1

VTX #2

VTX #3

VTX #4

VTX #5

SWITCH

VTX #6

VTX #7

VTX #8

VTX #9

VTX #10

SWITCH

VTX #11

VTX #12

VTX #13

VTX #14

VTX #15

RACK 1

RACK 2

RACK 3

FIBRE or CAT5FIBRE or CAT5

ANY COMPUTER ON

NETWORK

EXISTING BUILDING IT INFRASTRUCTURE

SWITCH

As many ampliers and racks as required can be networked in this way, and these may, of course,

be anywhere in the building. The only requirement is that each rack switch is connected to

the same building network, so that all ampliers in the system are accessible from a computer

elsewhere on the network.

* Ampliers in multiple racks may be wired to a single Ethernet switch in one (adjacent) rack if wished, though this will neces-

sitate a signicant amount of additional CAT5 cabling.

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