Instruction/ maintenance manual of the product 420 Bosch Appliances
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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.
2 | FLM‑I 420‑S Short Circuit Isolator Wiring example: Isolation of separate floors 1 L SN2 L SN1 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 LS N Pos. Description 1 Fire panel I, II, III Floors Typical wiring in a T‑Tap b1+ b1+ b1+ b1+ a- a- a- a- b2+ b2+ b2+ b2+ FLM-I 420-S FLM-I 420-S 1 LS N LS N Pos.
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 Protection class as per IEC 60529 IP 54 Ordering Information FLM‑I 420‑S Short Circuit Isolator for the isolation of alarm zones in which a short circuit has occurred.
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 firstname.lastname@example.org www.boschsecurity.us Europe, Middle East, Africa: Bosch Security Systems B.
An important point after buying a device Bosch Appliances 420 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bosch Appliances 420 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bosch Appliances 420 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bosch Appliances 420 you will learn all the available features of the product, as well as information on its operation. The information that you get Bosch Appliances 420 will certainly help you make a decision on the purchase.
If you already are a holder of Bosch Appliances 420, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bosch Appliances 420.
However, one of the most important roles played by the user manual is to help in solving problems with Bosch Appliances 420. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bosch Appliances 420 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center