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FLM‑420/4‑CON Conventional Interface Modules 4‑wire LSN

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  • Can be used with a wide range of conventional detectors
  • Monitoring of primary lines for alarms, short circuits and wire breaks
  • Conventional detectors can be connected in two stubs or one loop
  • Individual detector parameters can be programmed for each stub
  • Maintains LSN loop functions in the event of wire interruption or short-circuit thanks to two integrated isolators
  • Expanded system limiting values of LSN improved technology
LSN
vds

Product Variants

FLM‑420/4‑CON Conventional Interface Modules 4‑wire LSN

Interface module conventional use, surf.

CTN FLM-420/4-CON-S
Product No. F.01U.012.534

FLM‑420/4‑CON Conventional Interface Modules 4‑wire LSN

Interface module conventional use, rail

CTN FLM-420/4-CON-D
Product No. F.01U.012.535

Technical Specification

Key Specifications

LSN input voltage 15 V DC to 33 V DC (min. to max.)
Max. current consumption from LSN 8.5 mA
Line voltage 21 to 22 V DC (21.5 V DC typ. ±0.5 V DC))
Max. current supply 2-wire sensor 6 mA
Max. line current 80 mA per line (±10% at 25 °C)
Max. line resistance 50 Ω per line (max. 2 x 25 Ω)
Galvanic isolation from LSN Yes
Voltage 24 to 30 V DC
Residual ripple < 150 mV
Voltage 23.5 V DC to 30 V DC(rated voltage 24 V DC)
Residual ripple < 300 mV
Max. current (supply to 4‑wire detector) 200 mA per output (can be switched in parallel)
With calibration value 2.2 kΩ
Without calibration value 2.2 kΩ / 3.9 kΩ
Max. current consumption (PWR IN) 1 x 2.2kΩ*, 2 x 2.2kΩ*, 1 x 3.9kΩ*, 2 x 3.9kΩ*
Standby 36 mA, 50 mA, 31 mA, 40 mA
Lines open or short 25 mA, 28 mA, 25 mA, 28 mA
1 device on alarm at the line (820 Ω alarm res.) 69 mA, 112 mA, 65 mA, 103 mA
Multiple devices on alarm at the line 138 mA, 250 mA, 138 mA, 250 mA
Safety buffer to consider.Only when 4-wire sensors are used and powered trough the power output (AUX 2+ 1/2 1+) of the FLM-420/4-CON. Add the following figures one time only to the total power consumption for each power supply output:
Accessories

Surface mount box

CTN FLM-IFB126-S
Product No. F.01U.029.614

as retainer for the interface modules series 420 type DIN rail (-D) or spare housing for type surface-mount (-S)

Downloads

Title Type Language
Title
Certificate
Type
PDF
 Language
fr-FR 
Title
CPD (FLM-420/4-CON-S, -D)
Type
PDF
 Language
pl-PL 
de-DE 
en-US 
Title
Declaration of Conformity (FLM-420_4-CON/-S/-D)
Type
PDF
 Language
en-US 
Title
MOE
Type
PDF
 Language
ru-RU 
Title
VdS (FLM-420/4-CON; FLM-420/4CON-D)
Type
PDF
 Language
de-DE 
en-US 
Title
Commercial Brochure
Type
PDF
 Language
it-IT 
pl-PL 
ru-RU 
de-DE 
hu-HU 
nl-NL 
pt-PT 
en-US 
es-ES 
tr-TR 
cs-CZ 
fr-FR 
Title
Datasheet
Type
PDF
 Language
it-IT 
pl-PL 
ru-RU 
de-DE 
hu-HU 
nl-NL 
pt-PT 
en-US 
es-ES 
tr-TR 
cs-CZ 
fr-FR 
Title
Declaration of performance (FLM-420-4CON-S_-D)
Type
PDF
 Language
fi-FI 
de-DE 
hu-HU 
en-US 
hr-HR 
lv-LV 
sk-SK 
es-ES 
lt-LT 
sl-SI 
el-GR 
it-IT 
pl-PL 
nl-NL 
pt-PT 
ro-RO 
sv-SE 
bg-BG 
da-DK 
et-EE 
tr-TR 
cs-CZ 
fr-FR 
Title
Installation manual (FLM-420-4-CON)
Type
PDF
 Language
de-DE 
hu-HU 
en-US 
hr-HR 
es-ES 
sl-SI 
it-IT 
pl-PL 
ru-RU 
nl-NL 
pt-PT 
ro-RO 
da-DK 
tr-TR 
cs-CZ 
fr-FR 
Title
Special (Compatibility List)
Type
PDF
 Language
de-DE 
en-US 
Title
Special (EAC FLM-420)
Type
PDF
 Language
ky-KG 
ru-RU 
tg-Cyrl-TJ 
en-US 
hy-AM 
kk-KZ 
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