Functional Description; Technical Specifications - Bosch FLM-420-NAC-D Installationsanleitung

12 en | Safety
1 Safety
Notice!
Installation must only be carried out by authorized specialist personnel.
Caution!
Electrostatic discharge (ESD)! Electronic components could become damaged. Ground
yourself using a wrist strap or take other suitable actions.
Danger!
Live components and stripped cable!
Risk of injury from electric shock. The system must be current-free during connection work.
Caution!
System function not guaranteed! If the voltage falls under the lower limit of 20.4 V DC, then
!
connected notification appliances can fail without fault message on the panel. Therefore, the
external power supply has to be monitored with external means.
2

Functional description

FLM-420-NAC Signaling Device Interface Modules make it possible to connect sounder,
strobes, and horns to LSN fire panels. Each interface offers one monitored primary line. The
control of the signaling device line (NAC=Notification Appliance Circuit) is performed through
polarity reversal.
FLM-420-NAC-S is for surface-mounting, with housing, see graphic 1 . FLM-420-NAC-D is
installed on a DIN rail in accordance with EN 500022 with enclosed adapter, see graphic 2.
For address setting, fit the rotary switches in the required position, see graphic 3.
3 Connection
When using BCM-0000-B as external power supply, see graphic 4. When supplied by LSN
0300/LSN 1500, see graphic 5, auxiliary power is monitored by LSN 0300/LSN 1500.
Description
IN: b | a
OUT: b | a
0 V | 24 V
LSN: a1- | b1+ | a2- | b2+
FAIL ac | FAIL bat
4

Technical specifications

Display elements
Input voltage
Max. current consumption from LSN
2018.02 | 7 | F.01U.003.284
Function
NAC zone input
NAC zone output
Ext. power supply
LSN in | LSN out
Fault input for mains power failure | Fault input for battery failure
2 LEDs (red = alarm, green = normal operation)
15 V DC to 33 V DC
6.06 mA (normal operation and alarm)
Installation Guide
Signaling Devices Interface Module
Bosch Sicherheitssysteme GmbH