The FFT-EXP is an expander module that provides 12 Class B or 6 Class A phone circuits. The expander module connects to the FFT-1000 through the F-Link and Voice terminals and is expandable up to six (6) devices for Class B systems and up to fourteen (14) for Class A systems.

A maximum of two (2) FFT-EXP’s can be mounted in the FFT-1000. Additional FFT-EXP’s may be mounted in the AE-8 and AE-14 remote cabinets. All FFT-EXP’s must be installed in the same room within 20 feet of the FFT-1000 and wiring must run in conduit.