Scalable I/O expansion for OptiFlex™ BACnet building controllers
The OptiFlex™ I/O Expander FIO88u provides a flexible and installation‑friendly solution for expanding input and output capacity on OptiFlex™ BACnet Building Controllers, supporting system growth while maintaining seamless WebCTRL® integration.
OptiFlex I/O expanders deliver input and output capacity to the powerful OptiFlex BACnet Building Controllers. Up to nine OptiFlex I/O expanders can be added to an OptiFlex BACnet Building controller.
OptiFlex I/O expanders are designed for flexible panel configurations. They are DIN rail or screwtab mountable and can be mixed and matched to meet the I/O requirements of the equipment being controlled. The expanders can be mounted directly to the OFBBC controller or remotely mounted up to 500’ away.
The FIO88u is compatible with the following OptiFlex™ BACnet Building Controller models:
OF1628
OFBBC
OF1628‑NR
OFBBC‑NR
OF028‑NR
The expander connects directly to the host OptiFlex™ controller to extend system I/O capacity without requiring additional standalone controllers.
A USB service port is provided for local firmware updates and device servicing.
Supports DIN rail or screw mounting, enabling flexible installation in a variety of approved locations.
The FIO88u is used to expand the I/O capacity of compatible OptiFlex™ BACnet Building Controllers.
It is compatible with OF1628, OFBBC, OF1628‑NR, OFBBC‑NR, and OF028‑NR controllers.
No. The FIO88u functions as an I/O expansion module and operates in conjunction with a compatible OptiFlex™ BACnet Building Controller.
Yes. Its compact design and flexible mounting options make it suitable for both new installations and retrofit expansions.