Planning Your Installation; Electrical Specifications - Secutron MR-2602 Installation Manual

2.4 Planning Your Installation

This system should be installed and serviced by qualified fire alarm installation professionals.
Note:
As a minimum, the following points should be considered to ensure that the installation will be successful and
proceed without delay.
•Consult with your local AHJ to ensure that the overall system will meet all requirements. Have your plans
reviewed and approved as required.
•Review the electrical specifications, mounting and wiring instructions in this manual and in the manuals of
all connected modules and devices.
•Using the chart in this manual, calculate the standby battery size that will meet the standby time required.
Include all components that will draw current from the standby battery when the panel is in the 'standby'
mode.
•Determine the location of the control panel, all initiating and indicating devices and remote modules and
mark them on your system layout plan. An indicating device must be located in close proximity to the control
panel.
•Using the charts in this manual, determine the wire gauge and wire run distances for the connected
components. (initiating devices, indicating devices and 'secur-bus' connected components.)
•Review the programming section of this manual and determine the operating characteristics required of the
initiating zones, indicating zones and common panel features.

2.5 Electrical Specifications

Circuit
Primary AC
AUX+
SCOM
COM
Relays (common alarm &
trouble)
NAC Outputs
Initiating Zone Inputs
Battery Charging Current
Low Battery Trouble
Rating
120 volts, 60 Hz. 1.5 Amps maximum/240 volts, 50 Hz. 1.0 Amps
maximum
500 mA maximum ~ Restoral of Aux Power Shorts requires removal of
all Aux Power loading
500 mA maximum (current sink)
500 mA maximum (current sink)
Form 'C' contact, 2 Amp, 30 V
24 volts, full-wave rectified DC, 1.5 Amps max. – Power limited. (3.0
Amps total for both NAC circuits) EOLR – 4.7K ohm, ½ W, 5%
24 V , 60 mA max.(in alarm) – Supervisory current: 6.0 mA – max.
DC
Loop resistance: 100 ohms max. – EOLR: 4.7 K ohm, ½ W, 5%
270mA maximum
Low Battery Trouble: 22.0 V
Low Battery Trouble Restore: 23.0 V
Critical Shutdown: 19±0.5 V
MR-2602 Installation & Operator's Manual
resistive, power limited source
DC
DC
DC
DC
5