28 ECS Series Manual — P/N 151455:H 2/15/2022
ECS Device Installation Installing the ECS-50W
Connect the VBUS from the ECS-VCM to the ECS-50W amplifiers as shown in Figure 4.25 or ECS-NVCM as shown in Figure 4.26.
4.4.7 SBUS Wiring
This section contains information on how to connect ECS-50W amplifiers (up to 8 for IFP-100ECS, IFP-300ECS, or IFP-1000ECS or up to
16 for IFP-2000ECS or IFP-2100ECS) onto the main control SBUS. Refer to the FACP manual for SBUS specifications. Wire the SBUS as
shown in Figure 4.27.
OUT
–+
IN
–+–+AB
SBUSOUT
–+
IN
–+ –+AB
SBUS
AUX
CMD2 CMD1
AUDIO
COMMON
IN
GND
VBUS IN 1
VBUS OUT 1
+
+
Figure 4.25 VBUS Wiring for the ECS-VCM to the ECS-50W
ECS-VCM
supervised,
power-limited
Class B
to next ECS-50W
15kΩ EOL at last
amplifier on the VBUS
ECS-50W
ECS-50W
VBUS connections
3 Vrms, 5mA max.
OUT
–+
IN
–+ –+AB
SBUSOUT
–+
IN
–+ –+AB
SBUS
-IN+ -OUT+
-IN+ -OUT+
ECS-NVCM
ECS-50W
ECS-50W
Figure 4.26 VBUS Wiring for the ECS-NVCM to the ECS-50W
VBUS connections
3 Vrms, 5mA max.
supervised,
power-limited
Class B
to next ECS-50W
15kΩ EOL at last
amplifier on the VBUS
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