Hochiki CHQ-DSC-M User Manual
Hochiki Europe (UK) Ltd
Mains Relay Controller
Dual Sounder Controller
Dual Relay Controller
CHQ-MRC2(SCI)
CHQ-MRC2/DIN(SCI)
CHQ-DSC(SCI)
CHQ-DSC/M(SCI)
CHQ-DSC/DIN(SCI)
CHQ-DRC2(SCI)
CHQ-DRC2/DIN(SCI)
Fig 1
Fig 2
"Smart-Fix" CHQ Module (Back Plate inc PCB Component)
(Note: configuration of Wiring Terminal blocks differs between
models)
CHQ-LID Transparent Module Lid
(Supplied with four screws and acrylic retaining
washers)
Fig 3
Fig 4
Mains Relay Controller Adaptor Plate
DIN Rail Mountable CHQ
Setting the Loop Address
The analogue address of the Module is set using the first 7
switches of the 8-bit DIL switch, which in the case of the
Standard CHQ is located through the cut-out section on the top
of the PCB cover. On the DIN version, this switch is located on
the edge of the PCB behind the clear door (see Fig 4).
The switches are numbered 1 to 8 (left to right):
CHQ MODULE
SWITCH UP
ON
SWITCH DOWN
OFF
DIN MODULE
SWITCH UP
OFF
SWITCH DOWN
ON
The switches should be set using a small-tipped screwdriver or similar.
Refer to the Address Chart (Fig 7) on page 5 for a quick reference on addresses. (contd on page 4)
CHQ MODULES INSTALLATION INSTRUCTIONS
Products Covered: CHQ-DSC (Dual Sounder Controller), CHQ-DRC2 (Dual Relay Controller) &
CHQ-MRC2 (Mains Relay Controller)
Introduction
The CHQ "Smart-Fix" Range of Modules consists of the following models:
Note: (SCI) indicates all modules feature an integral short-circuit isolator. DIN indicates Module housing is designed to fit
standard “Top Hat” DIN Rail.
Components
Standard "Smart-Fix" Modules are supplied as two individual components (see Fig 1 & 2). DIN versions are supplied as
one unit (see Fig 4).
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Hochiki Europe (UK) Ltd
CHQ-DSC DUAL SOUNDER CONTROLLER provides two independent sounder outputs with open and short circuit monitoring (which
can be disabled). The sounder outputs can be separately driven, continuously or pulsed, under full synchronisation of the fire alarm
panel with other sounders on the same loop. An input is provided with short and open circuit monitoring (which can be disabled).
Setting Sounder & Input Monitoring
8-Way DIL Switch
CHQ MODULE
SWITCH 8 UP
I/P Monitoring Disabled
SWITCH 8 DOWN
I/P Monitoring Enabled
DIN MODULE
SWITCH 8 UP
I/P Monitoring Enabled
SWITCH 8 DOWN
I/P Monitoring Disabled
2-Way DIL Switch
CHQ MODULE
SWITCH 1 UP
SNDR O/P 1 Monitoring Disabled
SWITCH 1 DOWN
SNDR O/P 1 Monitoring Enabled
SWITCH 2 UP
SNDR O/P 2 Monitoring Disabled
SWITCH 2 DOWN
SNDR O/P 2 Monitoring Enabled
DIN MODULE
SWITCH 1 UP
SNDR O/P 1 Monitoring Enabled
SWITCH 1 DOWN
SNDR O/P 1 Monitoring Disabled
SWITCH 2 UP
SNDR O/P 2 Monitoring Enabled
SWITCH 2 DOWN
SNDR O/P 2 Monitoring Disabled
This module requires an auxiliary 24 Vdc power supply (this can also be
monitored) - see Fig 4.
Order codes
CHQ-DSC(SCI) / CHQ-DSC/M(SCI) / CHQ-DSC/DIN(SCI)*1
Transmission method
Digital communications using ESP
Loop:
Operating voltage
17 - 41 Vdc
Quiescent current
290 A
Current consumption whilst polling
22 mA 20 %
Current in short-circuit
8 mA
Maximum short-circuit current (Loop)
1 A
External Supply:-Operating voltage
20-28.8 Vdc (24 Vdc nominal)
Current consumption (per line)
Sounder On - 8 mA, Sounder Fault - 6 mA
Sounder output current
1 A/line max
Sounder line capacitance
0.3 F/line max.
Sounder E.O.L resistor
1 k, 5%, 2 W
Input E.O.L resistor
10 k, 5%, 0.25 W
Input threshold levels
ON=470 , short cct< 50 , open cct>100 k,
Weights (g) &
Dimensions (mm)
CHQ-DSC(SCI)
360
L=157 x W=127 x D=35 (CHQ Module plus Lid)
D=79 (CHQ Module plus Lid plus CHQ-BACKBOX)
(add 235 to module weight when using CHQ-BACKBOX)
CHQ-DSC/DIN(SCI)
145
L=119 x W=108 x D=24
Colour and enclosure material
CHQ Module & CHQ-BACKBOX White ABS, DIN Module Green ABS
*1 Fire alarm control panel compatibility required for these products. See AP0127 for short circuit isolator specifications.
Note:- All EOL and operational resistors are supplied with the unit – DO NOT DISCARD IN ERROR!
Protocol specified in
TI/006
CHQ-DSC/(SCI)
CHQ-DSC(HFP)-SCI
0832-CPD-1102*1
09
EN54-17 Short Circuit Isolators
EN54-18 Input/Output Modules
CHQ-DSC/DIN(SCI)
0832-CPD-1103*1
10
EN54-17 Short Circuit Isolators
EN54-18 Input/Output Modules
CHQ-MRC2(SCI)
CHQ-MRC2(HFP)-SCI
0832-CPR-F0058/13*1
13
EN54-17 Short Circuit Isolators
EN54-18 Input/Output Modules
CHQ-MRC2/DIN(SCI)
0832-CPR-F0059/13*1
13
EN54-17 Short Circuit Isolators
EN54-18 Input/Output Modules
Fig 4
LOOP CONNECTIONS
S = Cable Screen (if required)
- = Loop Negative (-ve)
+ = Loop Positive (+ve)
*1
For Declarations of Performance visit www.hochikieurope.com
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