Table of Contents
Advertisement
Praesideo 3.5 | Installation and User Instructions | 4 | Amplifiers
11.5
Technical data
supervision-slave
11.5.1 Physical characteristics
Dimensions (H x W x D):
80 x 60 x 16 mm
Weight:
50 g
Connection:
Screwable connector
11.5.2 Climate conditions
Temperature:
-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
11.5.3 EMC and Safety
Electromagnetic compatibility:
EN55103-1/FCC-47 part 15B
EN55103-2
EN50121-4
EN50130-4
Electrical safety:
IEC60065 (CB-scheme)
EN60065
Approvals:
CE marking
EN60849, EN54-16 and ISO7240-16
IEC60945
11.5.4 Mean time between failure
MTBF:
50,000 hours at +55 °C
(The MTBF doubles for every 10 °C decrease in
temperature.)
Bosch Security Systems | 2011-02
11.5.5 Loudspeaker line characteristics
Preferred cable:
Single twisted pair, 0.75 mm
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.
en | 188
2
2
to 1.5 mm
. The use of
Advertisement
Table of Contents
