3520656 Potter FFT-EXP Fire Fighter’s Telephone System 12 Circuit Expander

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.

Specifications

• Standby Current - 56 mA
• Alarm Current - 116 mA
• Operating Temperature - 0°C-49°C (32°F-120°F)
• Operating Humidity Range - 10%-93% @ 30°C (86°F) noncondensing humidity
• Maximum F-Link/Voice - 20 ft.
• Maximum FFT-EXP Class B - 6
• Maximum FFT-EXP Class A - 14

3520656 Specifications PDF