Listec d-LIST SCU 835, Instructions For Use Manual

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Instructions for use SCU 835 / SEC 15
3.17 Optocoupler outputs
With the SCU 835 , optocoupler outputs can be configured whose functions are advantageous for special applica-
tions, for example sirens, flashing lights, etc. (→ 6.6).
3.18 Optocoupler inputs
Fire zones can be assigned individually or multiple to an input. A maximum of four inputs P102 are available. Ex-
ternal signals can be read in here which are used, for example, to ensure only a temporary maximum temperature
alarm evaluation (for external door contacts, push button detectors, etc.). The signals are connected with +24 V DC
at the inputs (→ 6.7).
The following options can be activated:

MaxOnly

Extern Fault

Double-knock

Day/Night
3.19 Communication interfaces
The SCU 835 has several data interfaces, some of which can be queried simultaneously (→ 6.8):

USB :
Programming interface via graphical user interface GUI d-LISTconfig , or performing firmware updates.

LAN:
Connection into local area networks, programming interface via GUI d-LISTconfig and data interface to
FACP or control system.

P301 and P302 :
RS485 connection for RS485 -networks, programming interface via GUI d-LISTconfig and data interface to
FACP or control system.

P303 :
RS232 data interface to host computer, PLC s, etc. via software protocol, such as MODBUS.

P502 :
Data interface for relay board REL 835 (→ 6.12).

P503 :
Data interface for M ulti L ine -S pecial F ire D etetor module ML-SFD (→ 6.14).

P504 :
Data interface for e X tendet L ine M odule XLM 35 (→ 6.13).
3.20 Optional equipment - adapter plates for alarm transponder FACP
In addition to the standard sensor control unit SCU 835 and optional extension with relay board REL 835 , Securi- X -
Line module XLM 35 or Securi- M -Line module ML-SFD , further options are available (→ 6.15).
The SCU 835 can optionally be equipped with an adapter plate for FACP alarm transponder (types: Schrack
Seconet BX-OI3 → 6.15.1, Honeywell/ESSER 808623 → 6.15.2 or Siemens FDCIO222 → 6.15.3).
3.21 Real time clock
The sensor control unit SCU 835 has a real time clock RTC on the mainboard (→ 6.16). Generally the time is given
in UTC ( C oordinated U niversal T ime).
Page 28/112 LISTEC GmbH 60T328-02-LI-en / 29.01.2021