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ECS Device Installation
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.
to next ECS-50W
15kΩ EOL at last
amplifier on the VBUS
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.
28
ECS-VCM
to next ECS-50W
15kΩ EOL at last
amplifier on the VBUS
Figure 4.25 VBUS Wiring for the ECS-VCM to the ECS-50W
power-limited
–
+
–
+
–
+
A
OUT
IN
SBUS
ECS-50W
Figure 4.26 VBUS Wiring for the ECS-NVCM to the ECS-50W
+
+
–
+
–
+
–
+
A
B
–
+
–
+
OUT
IN
SBUS
OUT
IN
ECS-50W
ECS-50W
VBUS connections
3 Vrms, 5mA max.
supervised,
Class B
B
–
+
–
+
–
+
A
B
OUT
IN
SBUS
ECS-50W
ECS Series Manual — P/N 151455:H 2/15/2022
Installing the ECS-50W
VBUS connections
3 Vrms, 5mA max.
supervised,
power-limited
Class B
–
+
A
B
SBUS
ECS-NVCM
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