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Network Configuration

Instruction Manual – DXLink™ Twisted Pair Transmitters/Receiver

Network Configuration

Overview

DXLink Modules support two IP Addressing Modes: Static IP and DHCP (with link-local fallback*).

To avoid having a large system consume numerous IP addresses, the Transmitter and Receiver default to disabling the

network connection functionality. Therefore, the #3 Toggle must be set to ON before the Transmitter or Receiver can

establish a network connection (see page 45).

When #3 Toggle is ON, the DXLink Modules are automatically placed in DHCP Mode, but they can be configured for

either of the IP Addressing Modes via two methods:

The front-panel ID Pushbutton (see page 68)

Telnet commands (see page 107)

* “Link-local fallback” is a method by which an IP host, as a fallback from DHCP, can derive a local network-unique IP

address by negotiating with the other IP hosts on the same network. Link-local can also be used in its own right as the

primary method of IP address allocation. For details, see “DHCP Mode” below.

Static IP Mode – Default Parameters

Important: Static IP Mode will not function until the #3 Toggle on the DIP switch is set to ON (see page 45).

The #3 Toggle must

be ON before the device is accessible via SEND_COMMANDs.

DHCP Mode

Important: DHCP Mode will not function until the #3 Toggle on the DIP switch is set to ON (see page 45). The

#3 Toggle must be ON before the device is accessible via SEND_COMMANDs.

DHCP Mode requires a connection to a network with a DHCP server located on it. This connection can be either indirect

or direct.

Indirect connection – In the case of an Enova DGX Digital Media Switcher or an Enova DVX Solution

(Endpoint Mode) that is connected to a DHCP server device, the DHCP connection can be propagated

through the system’s DXLink layer. First you must complete the following:

Set the #3 Toggle to ON to enable the network connectivity.

Direct connection – In the case of a standalone pair (Extender Mode), to place the DXLink Modules in DHCP

Mode you must complete the following:

Set the #1 Toggle to ON to enable access to the physical ICS LAN 10/100 port.

Set the #3 Toggle to ON to enable network connectivity (DHCP).

Connect the ICS LAN 10/100 port to a network where a DHCP server is located.

When in DHCP Mode (the default setting), the module will attempt to get a DHCP lease (consisting of an IP address,

gateway, and other network parameters). Should the attempt fail, the module will then configure itself for a link-local

address.

DXLink Modules utilize a modified link-local addressing procedure. The first address to be tried is a known

address in the link-local space: 169.254.2.2. That address will be probed, and if unclaimed will be used by

the DXLink Module.

If 169.254.2.2 is already claimed, the DXLink Module will choose a random address within the 169.254.x.x

link-local address space (again probing to ensure that it is unclaimed).

Default Parameters For Static IP Mode

Address 192.168.1.2

Netmask 255.255.255.0

Gateway 192.168.1.1

DNS1 192.168.1.1

DNS2 192.168.1.1

DNS3 192.168.1.1

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