Functional Description; Terminal Assignment - Bosch LSN 0300 A Montageanleitung

English

Functional description

This module allows the connection of an LSN loop with up to 254 LSN
127 standard LSN elements, with a maximum line current of 300 mA.

Terminal assignment

Pos. Pos Labelling Labelling
1 AUX1 +
2 AUX1 -
3 LSN a1- LSN a1- outgoing
4 LSN b1+ LSN b1+ outgoing
5 AUX2 +
6 AUX2 -
7 LSN a2- LSN a2- incoming
8 LSN b2+ LSN b2+ incoming
*** Auxiliary power must only be returned to AUX2 in looped isolators
(ERT systems). [Suitable isolators include YBO-R/SCI isolators]
Technical specifications
Operating and display elements
Input voltage
Output voltage:
- LSN standby voltage
- LSN transmission voltage
- AUX auxiliary power
Maximum current consumption
Nominal current consumption:
- Module
- LSN
- AUX
Line length
Number of LSN elements
LSN line current
AUX auxiliary power (28 V DC)
Protection type
Safety standards
EMC immunity
EMC emission
Permissible operating temperature -5 _C . . . 50 _C
Permissible storage temperature
Relative humidity
Housing material and colour
Dimensions (w x h x l)
Weight
Product description LSN 0300 A
Connection
LSN loop
Auxiliary power Auxiliary power Auxiliary power supply Auxiliary power supply
supply
Auxiliary power Auxiliary power Auxiliary power supply Auxiliary power supply
supply***
2 LEDs (1x red, alarm/1x yellow, fault)
1 button (LED test)
+20 V DC. . . +30 V DC/+5 V DC ±5%
± 1,0
30
± 1,0
30
± 1.0
28
1750 mA at 24 V DC
39 mA at 24 V DC
1. x current consumption of LSN elements
1. x AUX auxiliary power
Max. 1600 m, depending on configuration and cable type
Max. 127 standard LSN elements
Max. 254 LSN
Max. 300 mA, depending on configuration and cable type
Max. 500 mA in an LSN loop (ERT system)
or 2 x max. 500 mA in 2 stubs
IP30/IEC 60529
IEC 60950 / EN 60950
EN 50130-4
EN 61000-6-3
-20 _C . . . 60 _C
Max. 95 % non-condensing
ABS plastic, (UL94 V-0), semi-gloss anthracite, RAL 7016
Approx. 127 x 96 x 60 mm
Approx. 225 g
LSN stub
stub 1
Stub 1 LSN a1-
Stub 1 LSN b1+
stub 2
Stub 2 LSN a2-
Stub 2 LSN b2+
V DC
± 0.15
V DC + 1.6 V DC (voltage hub)
V DC
elements
improved
13 / 32
4.998.137.277
elements or
improved
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