Mobotix MX-Overvoltage-Protection-Box-RJ45 Техническое Руководство

The HiRes Video Company

The German company MOBOTIX AG is known as the leading pioneer in network camera technology and its 
decentralized concept has made high-resolution video systems cost-efficient.

•  Protects MOBOTIX cameras against surges of up to 

4 kV on the PoE network cabling

•  For patch cable to patch cable or patch cable to 

installation cable (MX-Overvoltage-Protection-Box

-LSA)

•  Complete set including mounting supplies

Weatherproof network connector (IP65) with surge 

protection of up to 4  kV for MOBOTIX IP cameras; 

ideal for replacing MX-Patch-Box

31.684_EN_V2_01/2014

Surges are voltages that exceed the allowed voltage range for MOBOTIX IP cameras. The max. voltage for 
PoE, for example, is 57 V. Surges do not necessarily result in irreparable damages to MOBOTIX IP cameras. 
Only if the voltage is exceeded by a multiple of the allowed value, or if the surge is present for a longer 
period of time or even permanently, damages are unavoidable.

•  Direct lightning strike into the installation itself or the network cable
•  Lightning strike into the power supply or the ground in the vicinity (within a radius of 100 km/62 mi)
•  Switching of high loads, especially if network and power lines run side-by-side

In order to reduce the danger of damages resulting from surges, a specialist should establish a surge 
protection concept and implement such a system. Such a system consists of several surge protection zones, 
where each zone contains specific and generally applicable countermeasures. These range from lightning 
capture devices and double-shielded network cables to fine-level surge protection for end devices. When 
selecting the countermeasures, not only technical, but also economical aspects need to be considered in 
order to find the proper balance between protection and costs.

The 

MX-Overvoltage-Protection-Box-RJ45 and MX-Overvoltage-Protection-Box-LSA can be used in most 

of the protection zones and provide a cost-efficient protection against surges. It is generally recommended 
to install an MX-Overvoltage-Protection-Box if MOBOTIX cameras are installed outside of buildings. These 
devices protect MOBOTIX cameras against short surges of up to 4 kV.

•  The cable between the MX-Overvoltage-Protection-Box and the MOBOTIX camera must not be 

longer than 50 cm/19.7 in.

•  An MX-Overvoltage-Protection-Box protects against surges of up to 4 kV on a network patch or 

installation cable, but not against direct lightning strikes.

MX-Over

voltage-Protection-Box-RJ45

The patch cables with integrated sealing rings (available from MOBOTIX in different lengths) are 
simply inserted into the RJ45 connectors and fastened using the bayonet catch (1 patch cable to 
end device, 1 patch cable to PoE switch/injector). The ground wire is attached at the center (only 
qualified electricians are allowed to do this!).

MX-Over

voltage-Protection-Box-LSA

This variant allows using a network installation cable to the PoE switch. The wires are inserted 
into the LSA terminal in the center, while the MOBOTIX patch cable connects to the camera. The 
ground wire is attached at the left (only qualified electricians are allowed to do this!).