Hochiki YBO-R/SCIM User Manual

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2-3-0-367/ISS6/OCT13
HOCHIKI YBO-R/SCI & YBO-R/SCIM SHORT CIRCUIT
ISOLATOR BASES & CHQ-SCI/DIN SHORT CIRCUIT
ISOLATOR MODULE
INSTALLATION INSTRUCTIONS
General Description
These devices detect and isolate short-circuits on the loop. When a short-circuit is detected during power up these
isolators will illuminate their integral LED (yellow) and drop the power to the rest of the loop.
YBO-R/SCI & YBO-R/SCIM Isolator Base
The YBO-R/SCI (and the marine-approved equivalent YBO-R/SCIM) is a short-circuit isolator combined in a base
compatible with the ESP range of sensors (see compatibility chart below). The Isolator can also be used as a stand
alone unit with the addition of a simple clip on cover (SI/CAP), in either configuration the unit does not require a loop
address. A remote fire LED facility is provided when a sensor is attached to the base.
Note:- If a sensor is fitted this will still be powered when the device is isolating (yellow LED illuminated).
Specifications
Base Isolator
Ordering codes
YBO-R/SCI *
1
YBO-R/SCIM (Marine-Approved)
Protocols
ESP/HRE
#
Operating Voltage
19-41 Vdc (24 Vdc nominal)
Standby current
60 µA
Current drawn by isolator during fault condition
< 10 mA
Maximum current consumption from remote LED
N/A
Maximum continuous current
1 A
Maximum quantity per loop
127*
2
LED colour
Yellow
Ambient temperature range
-10 C to +50 C
Relative humidity
10% to 95% RH (at 40C)
Colour and case material
Ivory or White ABS
Fixing centres
48 mm through to 74 mm
Maximum wire thickness
2.5 mm²/terminal
Weight
92g
Optional cover for stand alone use
SI/CAP
NOTE: See AP0127 for short-circuit isolator specifications
#
The YBO-R/SCI can be used on the HRE protocol as a replacement for the SCI/2a, but as a stand alone isolator only, in other words, with
no sensor fitted.
*
1
Fire alarm control panel compatibility is required for this product.
*
2
Check with Fire alarm control panel manufacturer for maximum loop quantities
Compatibility
The YBO-R/SCI base isolator has been designed to work with the sensors listed below. All sensors are compatible
with Hochiki ESP (Enhanced System Protocol).
Sensor Type
Ordering Code
Photoelectric sensor
ALG-E, ALG-EN, ALK-E (and all variants)
Ionisation sensor
AIE-E (and all variants)
Temperature sensor
ATG-E, ACB-E, ACB-EW (and all variants)
Multi-Sensor
ACA-E
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Summary of Contents

Page 1 - INSTALLATION INSTRUCTIONS

2-3-0-367/ISS6/OCT13 HOCHIKI YBO-R/SCI & YBO-R/SCIM SHORT CIRCUIT ISOLATOR BASES & CHQ-SCI/DIN SHORT CIRCUIT ISOLATOR MODULE INSTALLATION INST

Page 2

2-3-0-367/ISS6/OCT13 Precautions  Ensure that both devices are installed in accordance with local standards or regulations.  Only install in su

Related models: YBO-R/SCI(WHT/SNDR)

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