User manual
www.mobotix.com • sales@mobotix.com
An uninterruptible power supply (
UPS
) consists of a rechargeable battery and electronic
components. These components ensure that the battery is correctly charged and prevent
the connected units from being damaged as a result of voltage peaks and lows. If an
electrical surge occurs, the voltage peaks are filtered out and in the event of low voltage,
the UPS takes over the power supply of the connected units for as long as the power
stored in the battery lasts.
We recommend safeguarding the network components of your MOBOTIX system (camera
power supply, switches, routers and even file servers) using UPS units as they can ensure that
your system will continue to operate properly, even in the case of a complete power failure.
A switch connects individual network-ready units to one another and delivers data from
the sending units to the receiving units. In larger networks, one or more switches form the
backbone of the system over which the data is transferred to the individual computers
and/or network devices. In a smaller network, this function is normally performed by a
router with multiple network ports (for example, in a home network).
Router
A router is normally used to establish a connection to the Internet. Technically speaking, a
router transfers requests to external IP addresses of computers that are located outside
of the local network. If a router has a sucient number network ports, it can also perform
the functions of a switch.
A router performs these functions, among others, for the units joined in the network:
• Using this function, individual network devices in the local network (cameras
and computers) are automatically assigned unique IP addresses to enable com-
munication between these units.
• The router establishes a connection to an Internet service pro-
vider (ISP) and receives a unique public IP address (an address that is recognized and
available online). Requests sent to an external IP address (e.g. a website) are sent
to this public address via the router and the results are sent back to the requesting
computer. Normally, a permanent connection to the provider is established.
• Each time the Internet connection is reestablished, the ISP automatically
assigns the router a dierent public IP address (for example, if the provider interrupts
the connection overnight). In order to assign a unique, static name to these constantly
changing IP addresses, register with a free DynDNS provider (for example,www.
dyndns.org) and create a name for your router and Internet connection (for example,
myhomenetwork.dyndns.org).