The Simplex 4009-9810 is a Class B Fiber Optic Receiver with IDNet Repeater for use with TrueAlert compatible addressable systems.

Compatible for use with Simplex 4100ES / 4010ES / 4100U / 4120 / 4100 / 4020 fire alarm control panels
(4100U / 4120 / 4100 / 4020 requires rev. 9 software or higher)

p/n 0636972

NOTE: See also Simplex 4009-9811 Class A Fiber Optic Receiver with IDNet Repeater