Lsn 0300 A Lsn Improved Module 300 Ma - Bosch FPA-5000 System Information Manual

Modular Fire Panel
4.9.10 LSN 0300 A LSN improved Module 300 mA
This module enables an LSN loop with up to 254 LSN improved elements or 127 classic LSN
elements to be connected, with a maximum line current of 300 mA and a cable length of up to
1600 m (depending on configuration and cable type).
Notice!
To ensure that the fire detection system is operated in compliance with EN 54‑13, each LSN
stub and T-tap must be terminated with EOL modules.
Figure 4.66: LSN 0300 A LSN improved Module 300 mA
Labeling
AUX1 + | AUX1 -
LSN a1- | LSN b1+
AUX2 + | AUX2 -
LSN a2- | LSN b2+
* The auxiliary voltage may only be fed back to AUX2 when isolators (ERT technology) are
used in the loop (suitable components include YBO-R/SCI isolators).
The technical data can be found in LSN 0300 A LSN improved Module 300 mA, page 153.
Bosch Sicherheitssysteme GmbH
Connection
LSN loop
Auxiliary power supply
LSN a1- / LSN b1+ outgoing
Auxiliary power supply*
LSN a2- / LSN b2+ incoming
System Information
Installation | en 113
LSN stub
Auxiliary power supply for stub 1
Stub 1 LSN a1- / Stub 1 LSN b1+
Auxiliary power supply for stub 2
Stub 2 LSN a2- / Stub 2 LSN b2+
09.2017 | 11.3 | F.01U.028.089