Bosch LSN 0300 A LSN improved Module 300 mA User Manual
Page 13
English
4.998.137.277
Product description LSN 0300 A
13 / 32
ST - FIR / PRM1 / deh
BDL-4998153984 / A4
Functional description
This module allows the connection of an LSN loop with up to 254 LSN
improved
elements or
127 standard LSN elements, with a maximum line current of 300 mA.
Terminal assignment
Pos
Labelling
Connection
Pos.
Labelling
LSN loop
LSN stub
1
AUX1 +
Auxiliary power
Auxiliary power supply
2
AUX1 -
Auxiliary power
supply
Auxiliary power supply
stub 1
3
LSN a1-
LSN a1- outgoing
Stub 1 LSN a1-
4
LSN b1+
LSN b1+ outgoing
Stub 1 LSN b1+
5
AUX2 +
Auxiliary power
Auxiliary power supply
6
AUX2 -
Auxiliary power
supply***
Auxiliary power supply
stub 2
7
LSN a2-
LSN a2- incoming
Stub 2 LSN a2-
8
LSN b2+
LSN b2+ incoming
Stub 2 LSN b2+
*** 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
2 LEDs (1x red, alarm/1x yellow, fault)
1 button (LED test)
Input voltage
+20 V DC. . . +30 V DC/+5 V DC
±5%
Output voltage:
- LSN standby voltage
- LSN transmission voltage
- AUX auxiliary power
30
± 1,0
V DC
30
± 1,0
V DC + 1.6
± 0.15
V DC (voltage hub)
28
± 1.0
V DC
Maximum current consumption
1750 mA at 24 V DC
Nominal current consumption:
- Module
- LSN
- AUX
39 mA at 24 V DC
1.6 x current consumption of LSN elements
1.35 x AUX auxiliary power
Line length
Max. 1600 m, depending on configuration and cable type
Number of LSN elements
Max. 127 standard LSN elements
Max. 254 LSN
improved
elements
LSN line current
Max. 300 mA, depending on configuration and cable type
AUX auxiliary power (28 V DC)
Max. 500 mA in an LSN loop (ERT system)
or 2 x max. 500 mA in 2 stubs
Protection type
IP30/IEC 60529
Safety standards
IEC 60950 / EN 60950
EMC immunity
EN 50130-4
EMC emission
EN 61000-6-3
Permissible operating temperature -5 _C . . . 50 _C
Permissible storage temperature
-20 _C . . . 60 _C
Relative humidity
Max. 95 % non-condensing
Housing material and colour
ABS plastic, (UL94 V-0), semi-gloss anthracite, RAL 7016
Dimensions (w x h x l)
Approx. 127 x 96 x 60 mm
Weight
Approx. 225 g
1 2
3 4
5 6 7 8