MAHA CONNECT Series, Original Operating Instructions, Page: 85 / 138

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X12 EXT
The X12 EXT network interface is intended as an ASA interface in Germany and is
configured accordingly ex works (as a DHCP client). However, it is also possible to
integrate the central module into the customer network via the EXT interface. In order
to enable such a convenient integration, the X12 EXT interface can be configured
according to customer requirements. It is recommended to carry out the configuration
of the X12 EXT interface via a device that is directly connected to the X13 MAHA port.
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DHCP server
To configure the X12 EXT interface as a DHCP server, "Server" must be selected as the
new mode. After a restart of the central module, the X12 EXT interface then operates
as a DHCP server. This means that the X12 EXT interface attempts to obtain IP
addresses via DHCPv4/v6 for 30 seconds when the central module is started (or a cable
is plugged in). If no DHCP server responds during this time, i.e. obtaining the addresses
fails, then the central module itself acts as a DHCPv4 server and assigns itself the
address 192.168.202.1.
If this setting is made, it must be ensured that the network in which the central mod-
ule or its X12 EXT is operated does not have another DHCP server. Multiple DHCP serv-
ers on a network cause network problems.
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DHCP client
To configure the X12 EXT interface as a DHCP client, "Client" must be selected as the
new mode. After a restart of the central module, the X12 EXT interface then operates
as a DHCP client. In the delivery state, the EXT interface is configured as a DHCP client.
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Static IP
To configure the X12 EXT interface to a static IP, "Static IP" must be selected as the
new mode. The fields IPv4 and Network mask are mandatory fields. Optionally, a
gateway can also be entered. After a restart of the central module, the X12 EXT
interface then operates with static IP.
Procedure for configuring the X12 EXT interface:
1 Connect a laptop or similar to the X13 MAHA socket of the central module via a
network cable. The network interface of the laptop must be configured as a DHCP
client. This means that in the properties of the corresponding Ethernet connection
in the "Internet Protocol, Version 4" element, the "Obtain IP address
automatically" and "Obtain DNS server address automatically" options must be
activated.