ZS zone sensors
ZS Sensors Carrier Proprietary and Confidential CARRIER CORPORATION ©2017
Installation Guide All rights reserved
14
To communicate through the local access port
You can connect to the Local Access port of a ZS zone sensor to perform test and balance or to make changes to
any device on the network.
• A computer with a USB port
• A USB Link (Part #USB-L)
If multiple controllers share power but polarity was not maintained when they were wired, the
difference between the controller's ground and the computer's AC power ground could damage the USB Link and
the controller. If you are not sure of the wiring polarity, use a USB isolator between the computer and the USB
Link. Purchase a USB isolator online from a third-party manufacturer.
Connect the USB Link to the computer and to the ZS Sensor's local access port.
USB Link
Connect to
Local Access port
12 ft
Connect to
USB port
7 3/4 in.
If using a USB isolator, plug the isolator into your computer's USB port, and then plug the USB Link cable
into the isolator.
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