Distech Controls ECB-VAV - Page 69

LonWorks Communication Bus Fundamentals
Network Guide 67
Figure 41: Power wiring - AC for ECL-600 with ECx-4XXs: The 24V COM Terminal of all Devices must
be Connected to Ground
AC
Power Source
Line Neutral Ground
2-Wire Subnetwork Bus 2- Wire Sub ne twork Bu s Cab le Sh ield, typica l
Fuse: 4 A Max.
Fast Acting
24 VAC
Transformer
ECx -4 XX
24V AC /DC
24 V COM
Fuse: 4 A Max.
Fast Acting
24 VAC
Transformer
ECx -4 XX
24V AC /DC
24 V COM
Fuse: 4 A Max.
Fast Acting
24 VAC
Transformer
ECL-600
24V AC /DC
24 V COM
MANDATORY: 24V COM Terminal Must
be Connected to Electrical System Gr ound
– At the Transformer ’s Secondar y Only
Subnetwork Bus Cable Shield Must
be Connected to Electrical System
Ground – At the ECL -600 Only
MANDATORY: 24V COM Terminal Must
be Connected to Electrical System Gr ound
– At the Transformer ’s Secondar y Only
MANDATORY: 24V COM Terminal Must
be Connected to Electrical System Gr ound
– At the Transformer ’s Secondar y Only