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SCI - SHORT CIRCUIT ISOLATOR

PRODUCT LISTINGS

Underwriters Laboratories: S5694Underwriters Laboratories of Canada: CS943CSFM #: 7300-0410:150MEA Report # 284-91-E Vol. IV

STANDARD FEATURES

• Can be placed at any location on SLC loop.• Checks the line for short circuit at power up. If the line is normal, the relay will be returned on. If a line short is detected, the relay remains open.• Indication of short circuit by a yellow LED

* Class A Configuration Wiring:The DCP-SCI short circuit isolator should be locatedbetween any devices on the SLC loop. In the event ofa short on the SLC loop, the two adjacent isolators(closest isolators to the left and right of the shortedsection) will activate and their respective LED indica-tors will be turned on. All devices between the activeshort circuit isolators will be dead. This will prevententire loop failure. Upon removal of the short condi-tion, the DCP-SCIs will automatically restore, theentire loop to the normal operating state.

* Class B Configuration Wiring:The DCP-SCI short circuit isolator should be locatedbetween any devices on the SLC loop. In the event ofa short on SLC loop, an isolator closest to the shortedsection will activate and the LED will be turned on. Allthe devices beyond the shorted section will bedisabled. Upon removal of the short condition, theDCP-SCI will automatically restore the entire loop tothe normal operating state.

For the best performance of DCP-SCI short circuit,use class A configuration.

WIRING:Note: All wiring must conform to local codes, ordi-nances and regulations.1. Install module wiring in accordance with job draw-ings and appropriate wiring diagram.2. Secure the module to an approved electrical box(supplied by installer).

MOUNTING REQUIREMENTS: 4" SQ Electrical box.

OPERATION

Specifications subject to change without notice.

SPECIFICATIONS

Absolute Maximum Applied Voltage: S, SC: 41 VDCSupply Voltage Norminal: S, SC: 33 VDCNormal Current Consumption: 270 µA (Typical)Active Current Consumption: 10 mA (Typical)(Short Circuit Condition)Dimensions: 4.2"W x 4.7"H x 1.4"DWeight: 1.4 ozVisual Indicator (Yellow Status LED): - No indication in normal condition. - On steady in active (short) condition.Maximum Quantity Per Loop: 127Operation Temperature Range: 0ºC (32ºF)~ 49ºC (120ºF) Non-condensingAllowable Ambient Humidity: 90% Non-condensing

Continued on back.

Representante Exclusivo Brasil

Hochiki America CorporationRepresentante Exclusivo Brasil Proline Equipamentos Eletrônicos LTDA. - Rua Santa Cristina,54 - CEP20241-250 Santa Teresa - Rio de Janeiro Tell : (21) 2 5 0 7-5 9 2 5 - Fa x : (21) 2 2 8 3 -1 7 7 8 - w w w. p r o l i n e e q u i p a m e n t o s . c o m . b r

Specifications subject to change without notice.Hochiki America Corporation DCP-SCI

BETWEEN ISOLATORS

ANY COMBINATION OF MODULESAND/OR SENSORS MAY BE PLACED

AND INHERENTLY POWER LIMITED.ALL WIRING SHOWN IS SUPERVISED

SHORT CIRCUIT ISOLATOR

GROUP OF VARIOUS DCP SENSORS

GROUP OF VARIOUS DCP MODULES

TO A COMPATIBLE LISTED CONTROL PANEL TYPICAL WIRING DIAGRAM EXAMPLE, CONNECTED

ISS

UE

NO

. AH

-977

4

S56

94LI

STE

DS

IGN

ALI

NG

DE

VIC

E

(IN) SC(OUT) S

(IN) S

SE

R. N

O. X

XX

XX

XX

XX

DC

P-S

CI

(OUT) SC

TB1

(NOT REQUIRED)

SHORT CIRCUIT ISOLATOR

(OU

T) S

C

DCP-SCISER. NO. XXXXXXXXX

(IN

) S

(OU

T) S

(IN

) SC

SIGNALING DEVICE

S5694

ISSUE NO. AH-9774

LISTED

TB1

OPTIONAL RETURN LINE

SHORT CIRCUIT ISOLATOR

TB1

(OUT) SC

DC

P-S

CI

SIG

NA

LIN

G D

EV

ICE

S56

94

SE

R. N

O. X

XX

XX

XX

XX

ISS

UE

NO

. AH

-977

4

(IN) S

(OUT) S

(IN) SC

++

+

CONTROLCOMPATIBLEUL LISTED

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PANEL

ENGINEERING SPECIFICATIONS

The contractor shall furnish and install where indicated on the plans, the Hochiki DCP-SCI short circuit isolator. Themodules shall be UL listed compatible with Hochiki Digital Communications Protocol (DCP) supporting control panelloops. The isolator module must be suitable for mounting in a standard 4" square electrical box. The isolatormodule must provide a yellow LED for indication of status.

WIRING DIAGRAM

Back side of a DCP-SCI