Honeywell ECS Series Installation And Operation Manual page 44

Emergency communication system
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ECS Device Installation
15kΩ EOL
at last panel
on the VBUS
ECS-NVCM
ECS-50W
ECS-50W
Figure 4-27 VBUS Wiring with ECS-NVCM
4-19
VBUS Connections
3 Vrms, 5mA max.
Supervised
Power Limited
151455

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