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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 4 | Amplifiers en | 188
11.5 Technical data
supervision-slave
11.5.1 Physical characteristics
11.5.2 Climate conditions
11.5.3 EMC and Safety
11.5.4 Mean time between failure
11.5.5 Loudspeaker line characteristics
Dimensions (H x W x D):
80 x 60 x 16 mm
Weight:
50 g
Connection:
Screwable connector
Temp era tur e:
-5 to 55 °C (operating. guaranteed)
-15 to 55 °C (operating, sample tested)
-20 to 70 °C (non-operating)
Relative humidity:
15 to 90%, non-condensing (operating)
5 to 95%, non-condensing (non-operating)
Air pressure:
600 to 1100 hPa
Electromagnetic compatibility:
E N55103-1/ FCC -47 part 15B
E N55103-2
EN50121-4
EN50130-4
Electrical safety:
IEC60065 (CB-scheme)
EN60065
Approvals:
CE marking
EN60849, EN54-16 and ISO7240-16
IEC60945
MTBF:
50,000 hours at +55 °C
(The MTBF doubles for every 10 °C decrease in
temperature.)
Preferred cable:
Single twisted pair, 0.75 mm
2
to 1.5 mm
2
. The use of
multi-wire cables is not recommended. Cross talk of
communication signals affects the supervision
performance.
Maximum cable length:
1 km (max. 500 m adjacent to other supervised
loudspeaker cables)
Maximum cable loop resistance:
38 ohm
Maximum cable inductance:
750 μH
Minimum total loudspeaker impedance:
50 ohm @ 70 kHz (independent of amplifier power)
Maximum cable capacity:
300 nF. However, if the maximum load capacity for the
power amplifier output is less than this value, the
maximum load capacity of the power amplifier is
leading (see section 8.8).
Loudspeaker voltage:
70 V, 100 V
Note
The load of the loudspeakers in relation to the
line impedance should be such that the 20 kHz
pilot tone level is not less than 8 Vrms at the
position of the supervision boards.
Because certification for the EN54-16 standard
has only been performed on the 100 V output of
the Praesideo amplifiers, the installer shall only
use the 100 V outputs of Praesideo for
emergency sound systems in Europe.