Subnetwork Installation Guidelines
ECLYPSE User Guide 135
About the Subnetwork Data Bus
ECY Series Distech Controls’ controllers use the subnetwork data bus to support various
optional modules that add extra inputs, outputs, sensor inputs (temperature, humidity, CO
2
,
motion, receive wireless commands from a remote control), and interactive screen menus for
user control. The subnetwork data bus uses the EIA-485 (Electronic Industries Alliance)
standard for data transmission.
Subnetwork Connection Method
Connection to the subnetwork data bus is made through the RJ-45 SUBNET port to quickly
connect expansion modules and sensors in a daisy-chained fashion to the subnetwork using
a Cat 5e cable (standard straight Ethernet patch cable). Any device that connects to a
controller’s SUBNET port is collectively referred to as room devices.
This is summarized in the table below.
Subnetwork Room Device
or Extension Module
Allure EC-Smart-Vue series
Cat 5e cable with RJ-45
connectors – See Cat 5e
Cable Subnetwork on page
139.
Allure EC-Smart-Comfort
series
Allure EC-Smart-Air series
ECx-Light-4 / ECx-Light-4D /
ECx-Light-4DALI
Room Device: Application
specific expansion modules
ECx-Blind-4 / ECx-Blind-4LV
Table 12-1: Subnetwork Connection Method