Gateway 400 User Guide | Before You Start
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1.3 Safety Information
Do not open the housing.
Never install the device or insert or disconnect a cable connection during a thunderstorm.
The device is only intended for applications within a building.
The power outlet must be near the equipment and easily accessible.
Lay the cables so that no one can step on or trip over them.
Use a dry cloth to clean the housing.
Avoid direct contact with water. Never immerse the device in water.
Avoid direct sunlight.
Make sure that only terminals that provide TNV-1 voltage or are intended for operation with
TNV-1 circuits are connected to the ISDN interfaces.
RJ45 jacks are used for a number of different interfaces. There is therefore a risk of confusion.
The Gateway 400 features TNV interfaces (Telecommunications Network Voltage) for ISDN con-
nections and SELV interfaces (Safety Extra Low Voltage) for network connections. Make sure
that no TNV and SELV interfaces are connected with one another. SELV devices are not protected
against voltage spikes, which can lead to technical defects or hazards for users. In the event of
a mixup, the devices will not operate as intended.
The device is designed for use as a desktop unit.
However, it can also be mounted in a rack. Please refer to the installation instructions.
USB devices must only be connected with cables of no more than 3 meters (approx. 9 feet).
Cables to SELV interfaces must not exit the building.
Clock lines should only be connected at the remote end as described in the supplied documen-
tation.
The device is designed for use in office and residential areas.
1.4 Computer Settings
In order to enable your computer to automatically connect to the Gateway 400, please check your
LAN settings. The LAN connection on your computer must be set to Obtain an IP address au-
tomatically (DHCP).
Assigning an IP address ensures that network devices on the Internet or on a home network (local
IP network) can be properly addressed. This requires each IP address to be only assigned once. This
automatic assignment of IP addresses can be handled by the Gateway 400 with its built-in DHCP
server (recommended, default setting).
Attention
This is a Class A device. This device can cause radio interference in residential areas. In
such cases, the operator may be required to take appropriate counteractive measures.
Note
In a network, only one device can perform the service of a DHCP server.
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