Functional description, Address setting, Connection – Bosch FLM-420-NAC Signaling Device Interface Modules Benutzerhandbuch
Seite 16: Technical specifications, Connection technical specifications
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FLM-420-NAC-S | FLM-420-NAC-D
F.01U.003.284 | 6.0 | 2010.06
Bosch Sicherheitssysteme GmbH
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.
Interface module variants:
-
FLM-420-NAC-S for surface-mounting with housing (see Figure 2 to Figure 6, Page 5 to Page 8).
-
FLM-420-NAC-D for installation on a DIN rail with adapter (see Figure 7 and Figure 8, Page 9 to 10).
Address setting
Fit a rotary switch in the required position using a pan head slotted screwdriver (see Figure 1, Page 4).
Connection
Technical specifications
NOTICE!
Installation must only be performed by authorized and specialized 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.
Address (A)
Operating mode
0 0 0
Loop/stub in LSN improved version mode with automatic addressing (T-tap system not possible)
0 0 1 — 2 5 4
Loop/stub/T-tap system in LSN improved version mode with manual addressing
CL 0 0
Loop/stub in LSN classic mode
2 5 5 — 2 9 9
Non-permitted address range (error message on fire panel)!
Terminals
Function
Connection diagram
IN: b | a
NAC zone input
- Stub: see Figure 9, Page 11
- Loop: see Figure 10, Page 11
OUT: b | a
NAC zone output
0 V | 24 V
Ext. power supply
LSN: a1- | b1+ | a2- | b2+ LSN in / LSN out
FAIL ac | FAIL bat
Fault ext. voltage / Fault ext. battery
Display elements
2 LEDs (red = alarm, green = normal operation)
Input voltage
15 V DC — 33 V DC
Max. current consumption from LSN
6,06 mA (standby/during an alarm)
Max. current consumption from ext. power supply
15 mA (standby) + output current
Ext. power supply
20,4 V DC — 29 V DC
Max. output current
3 A (during an alarm, from ext. power supply)
EOL resistance
3,9 kΩ
Classes of equipment as per IEC 60950
Class III equipment
Protection class as per IEC 60529
FLM-420-NAC-S: IP 54
FLM-420-NAC-D: IP 30
Permitted operating / storage temperature
-20 °C bis +50 °C / -25 °C bis +85 °C
Permitted relative humidity
< 96%, non-condensing
Material interface module housing
PPO (Noryl)
Material surface-mount housing
ABS + PC-Blend