EV-SCM
EV-SCM
EV-SCM
EV-SCM
4
1
Installation Leaflet EV-SCM Issue 1
EV-SCM
Installation Leaflet EV-SCM Issue 1
Fig. 1 EV-SCM Sounder Notification Module
© 2009 Nittan UK
© 2009 Nittan UK
INTRODUCTION
The
EV-SCM
Sounder Control Module is designed to
provide an output, in response to a command
signalled from a controller, to activate a number of
polarised and suppressed sounders. The sounders
are powered from an independent power supply
and the module is capable of passing up to a
maximum of 2A.
FEATURES
Use an EN54 approved PSU, to supply the source
power for EV-SCM dc applications:
•
EV-SCM
can switch up to 2A
•
EV-SCM
supervises power supply.
•
EV-SCM
monitors the wiring to signalling
devices and will not switch on (even if
commanded to do so), if a short circuit occurs.
This prevents a single short circuit condition
from disabling more than the output that
contains the short-circuit.
An LED reports
EV-SCM
status to the user. The
LED lights when the
EV-SCM
has been commanded
to activate.
TECHNICAL SPECIFICATION
Type Identification Value:
65
System Compatibility:
Use only with Evolution
Fire Alarm Panels which
support this product
Environment:
Indoor Application only
Operating Temperature:
-25ºC to +70ºC
Storage Temperature:
-40ºC to +80ºC
Operating Humidity:
Up to 95%
non-condensing
Dimensions (HWD):
87 x 148 x 14mm
Mounting Requirements:
One MK backbox
surface mount
Wire Size:
Min 1.5mm
2
Max 2.5mm
2
Battery Requirements:
Standby current: 0.75mA max
Alarm current: 4.5mA max
Addressable Device Conditions:
• Normal
• Short Circuit wiring fault
• Open Circuit wiring fault
• Input Power fault
• Device Type invalid
• Device No Response
Notification Circuit:
Max. Circuit Voltage Drop: 3.0V dc
Notification Circuit EOL: 27k ohms, 0.5 watt
Output Current: 2A max @ 24V dc
ELECTROMAGNETIC COMPATIBILITY
The EV-SCM complies with the following:
Product family standard EN50130-4 in respect of
Conducted Disturbances, Radiated Immunity,
Electrostatic Discharge, Fast Transients and
Slow High Energy
EN50081-1 for Emissions
Fig. 4 Simplified Wiring Diagram
showing Sounders wired in
a Spur Configuration
CIE
