Making the CE-IO4 Work With a Dry closure.
Escalation Article
Written by Richard Gregory
Updated at September 8th, 2026
Table of Contents
Brand:
- AMX
Affected Products:
- CE-IO4
Summary:
This article will explain how to configure the CE-IO4 to work with a dry contact closure.
Troubleshooting:
The CE-IO4 behaves exactly like MUSE I/O's with regards to dry closure of I/O's. In order for the dry closure detection to work the I/O MUST be configured correctly. The I/O must be put into Digital Input Mode and the 2K Pullup must be enabled/true in the configuration.
If the procedure above did not resolve your issue, please contact HARMAN Support for next steps.