
TMM-640 VoIP Touchscreen Master Module
Page 8 Document IM-TMM-640-1.2
To add a TMM-640 VoIP master station set the
Configure: entry of the DXL Configuration Editor to
Masters then clic on the Add… button to bring up a
Master Pro erties dialog box. In the Identification tab
you need to assign a Number: to the master station, a
Name: for the master station and use the pull down
menu to select the Ty e: of master station. In this case
we need to specify that it is an TMM IP Master.
You must specify the Exchange: associated with this master and assign a unique port number for the IP Master
using the Port pull-down menu. By default the next available port will be displayed.
7. Setting the IP Address for the TMM-640
Every device connected to the inter-networ Ethernet networ in a DXL system must have a unique IP address.
Since the TMM-640 does not have any switches or eypad on it to set its address, it has to initially be given a
temporary address from your networ by using a DHCP (Dynamic Host Configuration Protocol) server. In order
to configure the masters you will need a computer or device (such as a router) that can assign DHCP addresses.
This is used for initial configuration only. After the masters have been configured, they will use Static IP
addresses, and DHCP will no longer be required.
After you have set up a computer or device which acts as a DHCP server, connect up the bottom Ethernet port of
the TMM-640 to the networ switch that the DHCP server is connected to. The networ switch should assign an
IP address to the TMM-640. Once the TMM-640 indicator LED on the front is blin ing green (indicating it is on),
press the PTT switch on the TMM-640. Using a voice synthesizer, the TMM-640 should spea the IP address that
was assigned to it by the DHCP server. Write this address down for use in the next step.
If the TMM-640 spea s a 12 digit Ethernet MAC address this means that the TMM has not received a DHCP
address, indicating that there is probably no DHCP server on the networ
The small opening in the front above the C in MicroComm can be used to activate a switch that will reset the
TMM to the original factory set default values with the address set by the DHCP. The switch must be pressed at
the same time the Ethernet cable is plugged into the TMM.