34 ECS Series Manual — P/N 151455:H 2/15/2022
ECS Device Installation Installing the ECS-INT50W
Connect the VBUS from the ECS-VCM to the ECS-INT50W amplifiers as shown in Figure 4.35 or the ECS-NVCM to the ECS-INT50W as
shown in Figure 4.36.
4.5.4 Setting the Device Address
Use the onboard DIP switches to select an ID number for the ECS-INT50W. Refer to Figure 4.77 on page 61 to set the DIP switches for the
desired ID number.
Once the ID number is set, add the ECS-INT50W to the system through programming.
4.5.5 Speaker Wiring
Each ECS-INT50W supplies one circuit for speaker connection. The speaker circuit can be supervised and wired Class B or Class A. The
speaker circuit is capable of 50 watts of power at 25 Vrms or 70.7 Vrms. See Section 4.4.5 for wire lengths.
AUX
CMD2 CMD1
AUDIO
COMMON
IN
GND
VBUS IN 1
VBUS OUT 1
+
+
ECS-VCM
ECS-INT50W
ECS-INT50W
to next ECS-INT50W or EOL resistor
Figure 4.35 VBUS Wiring for ECS-VCM to ECS-INT50W
supervised,
power-limited,
Class B
VBUS1 VBUS2
-IN+ -OUT + -IN+ -OUT+
ECS-NVCM
ECS-INT50W
ECS-INT50W
to next ECS-INT50W or EOL resistor
Figure 4.36 VBUS Wiring for ECS-NVCM to ECS-INT50W
NOTE: The ECS-INT50W is powered by a NAC on the FACP or by an auxiliary power supply. It will not be found using JumpStart
AutoProgramming.
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