There are three typical ways to connect the cameras to the local network and give them power. It is possible to use a different method to connect each of the cameras in an installation.

The cameras connect to a Switch that is connected to the local network through another Switch. The configuration allows the installation to be up to 100 meters from the building/location where the local network and the Internet connectivity is located.

Note that the maximum length of the Ethernet cable is 100 meters. If longer distance is required to connect to the local network then a Switch can be used to extend the range or Fiber or Wireless link can be used. A wide range of Switches with Power-over-Ethernet support are available on the market.

Each camera in the installation connect to the local network through the closest available Switch. This is usually a typical configuration for indoor installations.

Note that the maximum length of the Ethernet cable is 100 meters. If longer distance is required to connect to the local network then a Switch can be used to extend the range or Fiber or Wireless link can be used. A wide range of Switches with Power-over-Ethernet support are available on the market.

The cameras in the installation connect to a central fiber modem at the location of the installation. The fiber modem then connects to the local network through a fiber cable. The fiber cable can be up to 1,000 meters which allows the location of the installation to be remote from the the local network and the Internet connectivity.

A wide range of Fiber modems are available on the market. Note that using a fiber cable sometimes requires ducting to be installed underground which could result in a high budget project. An alternative to fiber is to use Wireless links.
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Each camera in the installation connect to a separate fiber modem at the location of each camera. The fiber modems then connect to the local network through fiber cables. The fiber cable can be up to 1,000 meters which allows the location of the installation to be remote from the the local network and the Internet connectivity.

A wide range of Fiber modems are available on the market. Note that using a fiber cable sometimes requires ducting to be installed underground which could result in a high-budget project. An alternative to fiber is to use Wireless links.

When it is not possible to use fixed (ethernet or fiber) for connecting the cameras, Wireless Link is an option. The examples (alternative 1 and 2) below which shows some possible setups. In those cases typical equipment which then could be used are:

a) With one Sender/Receiver connected to Internet via your local network

b) At distant location (one Sender/Receiver at each camera cluster setup)

c) At each distant location you need electricity and a PoE switch with at least 3 ports, 2 for cameras and 1 for Uplink. Cameras will get their power thru the PoE switch/Ethernet cable

The cameras in the installation connect to a central wireless link modem at the location of the installation. The wireless modem then connects to the local network wirelessly. The distance that can be covered by the wireless link can be up to 1,000 meters which allows the location of the installation to be remote from the the local network and the Internet connectivity.

Note: That there must be a free line-of-sight between the two wireless link antennas.
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Each camera in the installation connect to a separate wireless link modem at the location of each camera. The wireless link modems then connect to the local network wirelessly. The wireless link can be up to 1,000 meters which allows the location of the installation to be remote from the the local network and the Internet connectivity.

Note: that there must be a free line-of-sight between the two wireless link antennas.
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The wireless link can reach several kilometers as long as there is a free line of sight between the antennas.

Example resources from where you can get wireless link transmitters:
​https://www.ubnt.com/airmax/nanobeam-ac-gen2/
​https://www.ubnt.com/airmax/litebeam-ac-ap/

Other resources:

Camera offline troubleshooting guide

Network requirements & firewall configurations
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