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Dd d d b – Bosch FLM-I 420-S Short Circuit Isolator User Manual

Page 18

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Product D escription F L M - I 420- S

E nglish

Bosch Sicherheitssysteme GmbH

F.01U.003.287 | A3 | 2008.03

18 / 36

Functional Description

The short-circuit isolator isolates alarm zones in which a short circuit or an interruption due to wire
break or detector removal has occurred. This means the functionality of the remainder of the network
remains preserved.

Wiring

Pos.

Description

Connection

1

b1+

2

a-

LSN

3

b2+

4

N/A

freel terminals, e.g. for looping

5

N/A

freel terminals, e.g. for looping

through ext. auxiliary voltage and for

hi ldi

6

N/A

g

y

g

shielding

Adress

Setting

Mode/

X

XX

X

X

X

XX

X

CL 0 0

0 0 0

1...254

FPA-
5000

BZ 500 LSN
UEZ 2000 LSN
UGM 2020

255...299

_

_

_

D

D
D

D

B

Technical Specification

Address setting 0 0 0

Loop/stub in LSN improved mode with automatic addressing
(T-tap system not possible)

Address setting 1...254

Loop/stub/T-tap system in LSN improved mode with manual ad-
dressing

Address setting CL 0 0

Loop/stub in „classic“ LSN mode

Input voltage (min - max)

15 V DC - 33 V DC

Maximum current consumption
- during initialization
- following the initialization

(from LSN)
< 0,4 mA
< 0,25 mA

Safety class as per IEC 60950

III

Protection class as per IEC 60529

IP 54

Permitted operating temperature

-20 °C . . . 50 °C

Permitted storage temperature

-25 °C . . . 85 °C

Permitted relative humidity

< 96%

Housing material and color

PPO (Noryl), signal white (RAL 9003)

Material interface module housing
Material surface-mount housing

PPO (Noryl)
ABS + PC-Blend

5 6

3 4

1 2

INFO

It is not permitted to use

different adressing modes together.