Praesideo 3.5 Installation and User Instructions 7 System Hardware Installation

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Note

During both installation and operation, the temperature of the POF cabling may not exceed 65 °C. Higher temperatures can damage the fibers.

31.4Maximum distance

Due to light loss, the maximum length of POF cabling (and therefore also system bus cables) between two pieces of equipment is 50 m. If the distance between two units is more than 50 m, PRS-FIN(NA) or PRS-FINS Fiber Interfaces and glass optical fibers (GOF) must be used (see figure 31.4).

Note

The POF part of the system bus connectors on the Praesideo equipment are F05 and F07 compliant. This means that if only data has to be transported, industry-standard F05 or F07 connectors can be used. If only POF cabling is used between two units, no power is transported between these pieces of equipment.

31.3Dust caps

Protect the POF parts of the system cables and connectors that are not in use with dust caps. Dust caps also block the red light from the fiber optic interface, which might be visible and disturbing.

figure 31.3: Dust cap

POF

POF

3

3

7

7

GOF ( > 50m)

figure 31.4: Using fiber interfaces

If GOF cables are used, make sure that they:

•are multimode GOF cables (single mode GOF cables are supported by the PRS-FINS);

•have a maximum attenuation of 2 dB/km;

•are suitable for light with a wavelength of 1300 nm;

•are terminated with standard SC connectors.

Note

It is also possible to increase the distance between units above 50 m by inserting PRS-NSP Network Splitters every 50 m or less. Although no tap-off may be required, the network signal is regenerated in the network splitter to cover another 50 m.

Bosch Security Systems 2011-02

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Bosch Appliances 3.5 manual Maximum distance, Dust caps
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3.5 specifications

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