Technical Data - Bosch Praesideo 3.5 Installation And User Instructions Manual

Digital public address and emergency sound system
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Praesideo 3.5 | Installation and User Instructions | 3 | Control Equipment
7.9

Technical data

7.9.1
Physical characteristics
Dimensions (H x W x D):
88 x 483 x 400 mm (19" installation, with brackets,
360 mm depth behind the brackets, 40 mm in front of
the brackets)
92 x 440 x 400 mm (table-top, with feet)
Weight:
6 kg
7.9.2
Climate conditions
Temperature:
-5 to +55 °C (operating)
-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
7.9.3
EMC and Safety
Electromagnetic compatibility:
EN55103-1/FCC-47 part 15B
EN55103-2
EN50121-4
EN50130-4
Fast transients immunity:
During fast transients bursts according to
EN61000-4-4, the Cobranet audio signal might be
lost. After the burst, this signal restores automatically.
Electrical safety:
IEC60065 (CB-scheme)
EN60065
Approvals:
CE marking
EN60849, EN54-16 and ISO7240-16
IEC60945
Bosch Security Systems | 2011-02
7.9.4
Mean time between failure
MTBF:
50,000 hours at +55 °C
(The MTBF doubles for every 10 °C decrease in
temperature.)
7.9.5
System bus
Connector (rear side):
Proprietary connector
Preferred cable:
LBB4416/xx
Maximum cable length:
50 m (per system bus connector)
Data signal interface:
Plastic optical fiber
Network power consumption:
11 W
7.9.6
Control inputs
Connector (rear side):
Removable screw connector
Total cable resistance:
< 1 kohm (with line supervision)
< 5 kohm (without line supervision)
Resistance detection (supervision enabled):
Cable short circuit
< 2.5 kohm
Contact closed
7.5 kohm to12 kohm
Contact open
17.5 kohm to 22 kohm
Cable broken
> 27 kohm
Resistance detection (supervision disabled):
Contact closed
< 12 kohm
Contact open
> 17.5 kohm
Maximum open voltage:
24 V(DC)
Internal pull-up current:
0.5 mA
External contacts:
Voltage-free closing or breaking contacts (relay
contacts, mechanical switches, mercury contacts
etc.)
en | 129

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