Hochiki CHQ-DSC/M(SCI) - Manual (Page 2)

Hochiki Europe (UK) Ltd
Page 2 2-3-0-1730/ISS3/DEC13
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
*1 For Declarations of Performance visit www.hochikieurope.com
Fig 4 LOOP CONNECTIONS
S = Cable Screen (if required)
- = Loop Negative (-ve)
+ = Loop Positive (+ve)