Applications - Metasys - Part No. 24-11064-00048 - DX-FAC-Adapter - Field Device - DX-FAC-Adapter

DX-ADPT-FAC4911 Installation Guide

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Document type
Installation Guide
Document number
Part No. 24-11064-00048
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Revision date
Important: The DX-ADPT- FAC4911 operates on BACnet/IP networks. It does not operate on BACnet MS/TP or N2 field bus networks. A site migration from N2 to a BACnet/IP network must be performed for the DX-ADPT- FAC4911 to operate.

The DX-ADPT- FAC4911 is a functional replacement for DX-9100-8454 Series Extended Digital Controller. The adapter comes with the FAC4911 Advanced Application Field Equipment Controllers and operate on BACnet/IP networks. It integrates into Johnson Controls® and third party systems. The DX-9100 series controller was very popular and was used primarily for central plant and air handling unit control. However, the controller's flexible programmability enabled it to be applied to a wide variety of equipment control applications, especially those requiring custom configurations. Also, its onboard real-time clock made it popular for stand-alone equipment control applications.

Note: The FAC4911 controller has a different dimensional footprint than the existing DX controller. The DX-ADPT- FAC4911 provides a solution for both physical mounting of the replacement FAC in an existing control panel, as well as the re-termination of the inputs and outputs in the same panel based on the location of the terminals on the FAC versus the terminal locations on the DX controller.
Figure 1. FAC4911 Footprint

Table 1. DX-9100 and FAC4911 replacement dimensions





200 mm (7.9 in.)

150 mm (5.9 in.)


84 mm (7.2 in.)

220 mm (8.7 in.)


100 mm (3.9 in.)

57.5 mm (2.3 in.)