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Subnetwork Bus Total Length
The total maximum length of all Subnetwork buses, including both the length of the Allure Series Communicating Sensor Subnetwork bus and the
ECx-400 Series Subnetwork bus is 300 m (1 000 ft). The maximum length of the Allure Series Communicating Sensor Subnetwork bus is 200 m (650 ft).
The maximum length of the ECx-400 Series Subnetwork bus is 300 m (1 000 ft).
Sub-Network Bus Total Length: 300 m (1 000 ft) Maximum
Sub-Network Bus: 200 m
(650 ft) Maximum
Allure EC-Smart-Vue
Sub-Network Bus: 300 m
(1 000 ft) Maximum
ECx-400
Typical Compatible
Controller
Extension I/O Modules
ECx-400
Sub-Network Bus - Cat 5e Cable
with RJ-45 Connectors
Allure EC-Smart-Vue
Sub-Network Bus
ECx-400
2-Wire Shielded Cable
Figure 5: Subnetwork Bus Overview Showing the Allure EC-Smart-Vue Subnetwork Bus and the ECx-400 Series Subnetwork Bus.
A controller can support a maximum of two Allure EC-Smart-Vue sensor models equipped with a CO
2
sensor; the remaining connected models must be
without a CO
2
sensor. See Table 1 for the quantity of room devices supported by each controller model.
For instance, if the controller model supports a subnetwork with 12 Allure EC-Smart-Vue sensors in total, then 10 sensor models must be without a CO2
sensor and the other two can be equipped with a CO2 sensor. To ensure proper operation, it is recommended to distribute the sensors throughout the
length of the subnetwork.
Cat 5e Cable with RJ-45 Connectors
Sub-Network Bus Total Length: 1 000 ft (300 m) Maximum
10x...
2x...
Bus: 600 ft (180 m) Maximum
Allure EC-Smart-Vue
Sensor Sub-network
ECB-600
ECL-600
or
Typical
Controller
ECx-400
Sub-Network Bus
Figure 6: Allure EC-Smart-Vue Sensor Subnetwork Length and Distribution
For ECB/ECL-PTU Series controllers, the maximum length between two consecutive devices on the sub-network bus
is 100 feet (30 m).
