The Spectracom 8140 Frequency Distribution Amplifier receives a standard input frequency and conditions it for distribution to remote points. Up to four networks can be connected to BNC connectors on the rear panel, with up to 25 line tap loads distributed among them. 10, 5, 1, and 0.1 MHz signals selectable from the front panel of the 8140. The Model 8140 standard configuration requires an input of 10 MHz; three other input frequencies are available as options 5, 1, and 0.1 MHz.