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Installing the ECS-INT50W
4.4.10 Calculating Current Draw and Standby Battery
This section helps you determine the current draw and standby battery needs for your installation (18 ampere hours max. will fit in cabinet).
These capacities have a built-in 20% derating factor. Complete the remaining instructions in Table 4.1.
Batteries larger than 18 AH will not fit in the main control cabinet, and must be housed in the RBB Accessory Battery Cabinet. The system
supports a maximum of 33 AH batteries.
ECS-50W 25V
ECS-50W 70.7V
ECS-CE4
A
Current Subtotals:
Notification Devices
B
Current Subtotals:
C
Total current rating of all devices in system (Line B) X 0.001
D
Number of standby hours (24 or 60 for NFPA 72)
E
Multiply line C (standby current) and D:
F
Alarm sounding period in hours (For example, 5 minutes = 0.0833 hours):
G
Multiply line C (alarm current) and F:
H
Add lines E and G (AH = Ampere Hours):
4.5 Installing the ECS-INT50W
This section provides information on how to install the ECS-INT50W for use with the ECS Series products. The ECS-INT50W Internal
Amplifier can fit inside the IFP-300ECS or IFP-2000ECS cabinets. It can also be adapted to fit into the IFP-2100ECS cabinet with the ECS-
AMPMT mounting kit (sold separately). It is used to amplify the audio message for distribution throughout the facility for the Emergency
Communication System.
4.5.1 Board Layout & Mounting
IN1
OUT1
Mounting the ECS-INT50W
1.
Remove AC power and disconnect the backup batteries from the main control panel.
2.
To mount the ECS-INT50W inside the FACP cabinet below the main board, align the board with the mounting holes and secure the
board to the enclosure with the eight supplied screws.
ECS Series Manual — P/N 151455:H 2/15/2022
No. of
Device
Devices
1
1
0 or 1
Refer to device manual for number of devices and current ratings.
Table 4.1 Current Draw ECS-50W and ECS-CE4
mounting holes
Figure 4.31 ECS-INT50W Board Layout
Current Per Device
Standby:
85 mA
Alarm:
525 mA
Standby:
100 mA
Alarm:
580 mA
Standby:
20 mA
Alarm (All Channels):
180 mA
Total standby AH
Total alarm AH
Total AH required
DIP switch
ECS Device Installation
Standby
Alarm
Current
Current
85 mA
525 mA
100 mA
580 mA
20mA
180 mA
mA
mA
mA
mA
A
A
H
AH
H
AH
AH
VBUS
SBUS
power input
31
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