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VESDA-E VEU-A00 Product Guide
36
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Notes:
l
The polarity of the data wires must be maintained throughout the network.
l
In order for the detector to be able to detect ground faults on the VESDAnet wiring, the Ground Reference
Terminal (Figure 4-33) must be connected to the local ground.
A+
A-
B-
Shield
Module 1
Module 2
Module 3
Module 5
Module 4
Shield
B+
A+
A-
B-
Shield
Shield
B+
A+
A-
B-
Shield
Shield
B+
A+
A-
B-
Shield
Shield
B+
A+
A-
B-
Shield
Shield
B+
(VESDA-E VEU)
Figure 4-35: Example closed loop VESDAnet network
The VESDA-E VEU-A00 detector is shipped with the VESDAnet A and B terminals looped. Remove the A
and B links prior to connecting the detector to the VESDAnet. If the detector is not to be networked with other
devices, then do not remove the A and B links.
Shield
A-
A+
Shield
B-
B+
Figure 4-36: Closed loop for standalone detectors with VESDAnet capability
Note:
Refer to the VESDA-E Communications Guide for further information.
Содержание VESDA-E VEU-A00
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