Distech Controls ECB-VAV, User Manual

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78 Network Guide
A controller can support a maximum of two (2) Allure Series sensor models equipped with a
CO2 sensor; the remaining connected models must be without a CO
2
sensor. See Subnet-
work Module Compatibility and Supported Quantity Charts on page 71 for the quantity of room
devices supported by each controller model.
For instance, if the subnetwork for the controller model supports a subnetwork with 12 Allure
Series sensors in total, then 10 Allure Series sensor models must be without a CO2 sensor
and the remaining two (2) Allure Series sensor models can be equipped with a CO2 sensor.
To ensure proper operation, it is recommended to distribute the sensors throughout the length
of the subnetwork.
Figure 49: Allure Series Sensors Subnetwork Length and Distribution
ECx-400 Subnetwork Bus
Cat 5e Cable with RJ-45 Connectors
Typical ECB/ECL-600 Controller
EC-Smart-Vue Subnetwork
Subnetwork Bus Total Length: 1 000 ft (300 m) Maximum
10x... 2x...
Bus: 600 ft (180 m) Maximum
Typical ECB−600 /
ECL−600 Controller