ALLEN & HEATH iDR-4 User's Guide download pdf (Page 22)

22 IDR-4 User Guide

Communicating Using A TCP/IP Connection

The iDR-4 uses TCP/IP to communicate with a PC or

distributed network via a CAT5 Ethernet link. It can also

communicate over a dial-up connection using PPP via its

RS232 port. The faster Ethernet connection is recommended

for iDR configuration purposes. Note that the rear panel RS232

port is intended for remote interrogation of the unit via a

modem.

You can connect the iDR-4 directly to your PC using the

Ethernet connection. Alternatively you can plug into a network

so that any networked PC workstation running appropriate

Allen & Heath software can control it. You can have several

iDR-4 units plugged into the same network. This provides the

most flexible solution in today’s world of networked technology.

Each iDR-4 unit must have its own unique IP address. It needs

to be related to the PC and network address ranges. It must be

within the range of addresses allowed on the Subnet. It must

not conflict with the addresses of other units plugged into the

network. It is also possible that the PC you use to configure

the iDR-4 is also used with a network at your place of work. If it

is served by a DHCP server then it is likely that it does not have

its own permanent IP address as this is leased by the server.

For these reasons it is very important that you take care when

choosing and setting up the IP addresses.

If you do not have administrative rights to your PC, or

are not familiar with network configuration, or are unsure

which addresses to use then please consult your network

administrator or IT manager.

Some networking terms explained:

 LAN (Local Area Network), the physical

network that links many PCs and related devices

in the same building.

 Ethernet, the most popular worldwide

network system. It is defined by the IEEE802.3

standard and implemented over twisted pair

cable.

 CAT5 (Category 5), the standard used for

network cabling and associated connectors.

 UTP, STP (Unshielded Twisted Pair or

Shielded Twisted Pair), the type of cable used.

The cable has four twisted pairs of wires. STP is

shielded to reduce interference pickup.

 TCP/IP (Transmission Control Protocol /

Internet Protocol), a set of layered industry

standard protocols which define network

communication.

 IP address, the unique ‘soft’ address which

identifies each device connected to the network.

It is made up of 4 numbers each from 0 to 255, for

example 192.168.0.1. IP addresses are governed

by the InterNIC organisation.

 Subnet, a subdivision of an organisations

network, splitting it into smaller sections.

 Subnet mask, the number which is used to

identify the subnet, for example 255.255.254.0. It

determines the number of addresses in the

subnet.

 MAC address (Media Access Control), a

unique 12 digit hexadecimal number allocated by

the IEEE to each network hardware device. The

iDR-4 has its number held in its cpu card. A look

up table relates it to the active IP address.

 DHCP (Dynamic Host Configuration

Protocol) A DHCP server automatically allocates

IP addresses to networked devices from a pool of

available addresses. It makes the task of

connecting devices much simpler and prevents

address conflicts. Each device connected should

be set to ‘DHCP ON’, or have its address manually

allocated by the network administrator.

 MDI/X (Medium Dependent Interface), a

switch which determines the electrical connection.

MDI is used when connecting to a network via a

hub. MDIX (MDI crossover) is used when devices

are connected directly instead of through a hub.

 Host, a networked device that provides a

service to a client device.

 Client, a networked device that requests the

services of a computer system or process.

 Dial-up connection, A temporary connection

between devices, for example using a modem

over a standard phone line.

 PPP (Point to Point Protocol), a simple

protocol for data transfer using a dial up

communication over a serial interface.

NETWORK

DIRECT

CAT5

TCP/IP

iDR-4

AUDIO MIX PROCESSOR

iDR-4

AUDIO MIX PROCESSOR

iDR-4

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ALLEN & HEATH iDR-4 User's Guide Page 22

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