24 en | General installation procedures and instructions PRAESENSA
2019.11 | V1.00 | Installation manual Bosch Security Systems B.V.
Cable length Minimum wire cross section [mm
2
]
[m] [ft]
1000 3280 0.5 0.75 1.5 4 6 6 10 10 16
900 2952 0.5 0.75 1.5 2.5 4 6 10 10 10
800 2624 0.5 0.75 1.5 2.5 4 6 6 10 10
700 2296 0.5 0.5 1 2.5 4 4 6 6 10
600 1968 0.5 0.5 1 2.5 2.5 4 6 6 10
500 1640 0.5 0.5 0.75 1.5 2.5 4 4 6 6
400 1312 0.5 0.5 0.75 1.5 2.5 2.5 4 4 6
300 984 0.5 0.5 0.5 1 1.5 2.5 2.5 2.5 4
250 820 0.5 0.5 0.5 0.75 1.5 1.5 2.5 2.5 4
200 656 0.5 0.5 0.5 0.75 1 1.5 1.5 2.5 4
150 492 0.5 0.5 0.5 0.5 0.75 1 1.5 1.5 2.5
100 328 0.5 0.5 0.5 0.5 0.5 0.75 0.75 1 1.5
50 164 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.75
[W] @100V 20 50 100 200 300 400 500 600 -
[W] @70V 10 25 50 100 150 200 250 300 400
Loudspeaker power at end‑of‑line
Ethernet copper cable
Notice!
In order to comply with the strict rules regarding compliance to high energy voltage surges on
the Ethernet connections it is mandatory to use shielded twisted pair cabling (F/UTP), not
ordinary unshielded twisted pair cabling (UTP). F/UTP denotes foiled/unshielded twisted pair
and consists of four unshielded twisted pairs encased in an overall foil shield. This is not to
be confused with an S/FTP (screened / foiled twisted pair) cable which has four individually
shielded twisted pairs encased in an overall braided shield.
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