Modular Fire Panel Product Description | en 45
Bosch Sicherheitssysteme GmbH Product Information F.01U.028.089 | 5.4 | 2009.08
1.15.10 LSN 0300 A LSN improved Module 300 mA
With this module it is possible to connect an LSN loop with up to 254 LSN improved elements
or 127 classic LSN elements with a maximum line current of 300 mA and up to 1600 m cable
length (depending on configuration and cable type).
Technical specifications
NOTICE!
In line with EN 54-13, each LSN stub and T-tap must be terminated with EOL modules for the
operation of fire detection systems.
Labeling Connector
LSN loop LSN stub
AUX1 + / AUX1 - Auxiliary power supply Auxiliary power supply for stub 1
LSN a1- / LSN b1+ LSN a1- / LSN b1+ outgoing Stub 1 LSN a1- / Stub 1 LSN b1+
AUX2 + / AUX2 - Auxiliary power supply* Auxiliary power supply for stub 2
LSN a2- / LSN b2+ LSN a2- / LSN b2+ incoming Stub 2 LSN a2- / Stub 2 LSN b2+
* The auxiliary voltage may only be returned to AUX2 when isolators are used in the loop (ERT
system)! (Suitable isolators include YBO-R/SCI)
Operating and display elements 2 LEDs (1 x red, alarm/1 x yellow, malfunction) 1 button
(LED test)
Input voltage +20 V DC to +30 V DC / +5 V DC ± 5%
Output voltage:
- LSN
- Auxiliary supply AUX
30 ± 1.0 V DC
28 ± 1.0 V DC
Maximum current consumption 1750 mA at 24 V DC
Nom. current consumption:
- Module
- LSN
- AUX
39 mA at 24 V DC
1.7 x current consumption of the LSN elements
1.2 x auxiliary supply AUX
Cable length Max. 1600 m, depending on configuration and cable type
Number of LSN elements Max. 127 classic LSN elements
Max. 254 LSN
improved
elements
LSN line current Max. 300 mA, depending on configuration and cable type
Auxiliary supply AUX (28 V DC) Max. 500 mA for an LSN loop (ERT system) or
2 x max. 500 mA with 2 stubs
Dimensions (H x W x D) Approx. 127 x 96 x 60 mm (5.0 x 3.8 x 2.4 inches)
Weight Approx. 225 g (7.9 ounces)
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