Bosch FLM‑420‑01I1‑D Guia De Instalacion página 10

10 en | Safety Notes
1 Safety Notes
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.
2 Functional description
The Interface Module has one semiconductor output for controlling external devices and one
monitored input.
The output is electrically isolated from the LSN loop and protected against short circuits.
Connected loads can be power-supplied by the auxiliary power supply from the fire panel.
For the input, two monitoring functions can be selected (see Graphics):
1.
2.
The programming is carried out via the programming software of the fire panel.
For installing and removal of the FLM-420-O1I1-D on a DIN rail in accordance with EN 60715
with enclosed adapter see figure 2. Optionally, the interface module may be built into the
surface mounted housing FLM-IFB126-S.
3 Connection
The output OUT/OUT- is switched against the negative potential of the interface module
(POWER IN/POW-).
The positive potential for OUT/POW+ is provided by the auxiliary power supply (AUX) from the
fire panel.
OUT/POW+ and POWER IN/POW+ are linked internally.
Alternatively, the positive potential for OUT/POW+ may be provided by an external power
supply unit (see figure 4). The external power supply unit must be free-of-ground.
Notice!
A maximum cable length of 3 m is permitted per input and output.
The maximum cable length of all inputs connected to the loop or stub is 500 m in total.
Additionally, all outputs which are not electrically isolated from LSN must be included in the
total line length calculation (e.g. peripherals connected via C points).
The activation of the input IN has to be carried out electrically isolated from LSN (e.g. with
relay contacts, pushbutton, etc.).
The input must have a minimum activation time of 3.2 s.
Description
IN IN+ | IN-
OUT POW+
OUT-
POWER IN POW+ | POW-
LSN b1+ | a- | b2+
2019.02 | 4.0 | F.01U.032.854
Monitoring a line with EOL resistor for standby or triggering (interruption/short circuit)
Monitoring a potential free contact for open and closed states
Function
Input
Reference potential (+)
Output (switched negative potential)
Power supply output (OUT)
LSN (incoming/outgoing)
Installation Guide
Output-input Interface Module
Bosch Sicherheitssysteme GmbH