Bosch FLM-I - Manual
Bosch FLM-I – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – | FLM‐I 420‐S Short Circuit Isolator; Wiring example: Isolation of separate floors; III; Typical wiring in a T‐Tap; Certifications and Approvals; Note; Technical Specifications
- Page 3 – FLM‐I 420‐S Short Circuit Isolator | 3; Environmental conditions; Ordering Information; FLM‐I 420‐S Short Circuit Isolator
- Page 4 – | FLM‐I 420‐S Short Circuit Isolator
Fire Alarm Systems | FLM‑I 420‑S Short Circuit Isolator
The Short Circuit Isolator isolates alarm zones in which a
short circuit has occurred. This means the functionality of
the remainder of the network remains preserved.
System Overview
b1+ a- b2+ N/A N/A N/A
LSN
9 1
6 4
7 3
8 2
0
5
8 2
0
5
6 4
9 1
7 3
CL 1
2
0
Description
Connector
b1+ / a- / b2+ LSN
N/A (3 x)
free terminals, e.g. for looping through ext. auxiliary volt-
age and for shielding
Functions
Features of improved LSN
The interface modules in the 420 series offer all the
features of improved LSN technology:
•
Flexible network structures including T‑tapping
without additional elements
•
Up to 254 LSN-improved elements per loop or stub
line
•
Unshielded cable can be used
Address switch (rotary switch)
The address of the Short Circuit Isolator is set using the
rotary switches.
The following settings are possible:
0 0 0
Loop/stub in LSN mode improved version with automatic
addressing (T-tap system not possible)
0 0 1 - 254
Loop/stub/T-tap system in LSN mode improved version
with manual addressing
CL 0 0
Loop/stub in classic LSN mode
Configuration
The Short Circuit Isolator isolates alarm zones in which a
short circuit has occurred. The following illustrations
show typical configurations of the isolator module.
FLM‑I 420‑S Short Circuit Isolator
▶
Rotary switch for automatic and manual address
setting
▶
Preservation of LSN loop functions in the event of a
short-circuit by two integrated isolators
▶
Power supply via LSN
▶
Three free screw terminals
www.boschsecurity.com
"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.
Summary
2 | FLM‑I 420‑S Short Circuit Isolator Wiring example: Isolation of separate floors 1 LSN2 LSN1 a- a- b+ b+ b1+ b1+ b1+ a- a- a- b2+ b2+ b2+ III FLM-I 420-S FLM-I 420-S FLM-I 420-S II I LS N LSN Pos. Description 1 Fire panel I, II, III Floors Typical wiring in a T‑Tap b1+ b1+ b1+ b1+ a- a- a- a- b2+...
FLM‑I 420‑S Short Circuit Isolator | 3 Environmental conditions Permitted operating tempera- ture -20 °C to 50 °C (-4 °F to 122 °F) Permitted storage tempera- ture -25 °C to 85 °C (-13 °F to. 176 °F) Permitted relative humidity < 96% Classes of equipment as per IEC 60950 Class III equipment Prote...
4 | FLM‑I 420‑S Short Circuit Isolator Americas: Bosch Security Systems, Inc. 130 Perinton Parkway Fairport, New York, 14450, USA Phone: +1 800 289 0096 Fax: +1 585 223 9180 [email protected] www.boschsecurity.us Europe, Middle East, Africa: Bosch Security Systems B.V. P.O. Box 80002 5600 ...
