Wiring An Ec-Sensor To A Bacnet Network For Technician Use - Distech Controls Allure EC-Sensor Series Hardware Installation Manual

To wire a laptop to a bus topology L
1. Remove the front plate of the EC-Sensor.
2. Connect the LON cables coming from the previous device and going to the EC-Sensor to the LON1 and LON2 input terminals on the controller. If in-
serting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them in the terminal connectors.
3. Connect the LON cables going to the next device and coming from the controller to the NET+ and NET- input terminals on the EC-Sensor. If inserting
multiple wires in the terminals, ensure to properly twist wires together prior to inserting them in the terminal connectors.
4. Connect the two (2) wires that terminate with the ⅛" audio cable to the output terminals of the LonTalk® adapter of the laptop.
5. Insert the ⅛" audio cable into the communications jack of the EC-Sensor.
Figure 12: Wiring an EC-Sensor to a L
For information and detailed explanations on network topology and wire length restrictions, please refer to the
Junction Box and Wiring Guideline for Twisted Pair L

Wiring an EC-Sensor to a BACnet network for Technician Use

The communications terminals (NET+, NET-, and SHIELD) within the EC-Sensor can be optionally wired to a controller in BACnet network. To access
the BACnet networks, a laptop can be connected to the EC-Sensor. The recommended cable type for BACnet communication is 24AWG (0.5mm),
twisted pair, shielded. The following figure shows how the EC-Sensor is connected in BACnet network:
Figure 13: Wiring an EC-Sensor to a BACnet network
To wire a laptop to the BACnet network via an EC-Sensor, do the following:
1. Remove the front plate of the EC-Sensor.
2. Connect the BACnet cables coming from the previous device and going to the EC-Sensor to the NET+ and NET- input terminals on the controller.
Maintain consistent wire polarity. If inserting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them in the termi-
nal connectors. Also, connect the shield of the two (2) cables together while keeping it as short as possible.
3. Connect the BACnet cables going to the next device and coming from the controller to the NET+ and NET- input terminals on the EC-Sensor. If in-
serting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them in the terminal connectors. Also, connect the
shield of the two (2) cables to the SHIELD input terminal on the EC-Sensor.
4. Connect the three (3) wires that terminate with the ⅛" audio cable to the output terminals of the BACnet/IP to MS/TP Adapter.
5. Insert the ⅛" audio cable into the communications jack of the EC-Sensor.
W network via an EC-Sensor, do the following:
ON ORKS
WIRELESS
PORT
W Network Bus Topology
ON ORKS
24AWG (0.5mm) shielded twisted
Controller
Sensor
From
Previous
LON2
2
LON1
1
SMRT-
2
SMRT+
1
UI4
5
UI3
4
COM
3
UI2
2
To
UI1
1
Next
UO6
3
COM
2
UO5
1
DO4
6
C3-4
5
DO3
4
DO2
3
C1-2
2
DO1
1
24 VAC
2
24V COM
1
PRESSURE
HIGH LOW
®
W Networks , published by Echelon
ON ORKS
pair network cable
1/8"
Com.
Jack
®
.
Bus-topology
network
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