133Figure 149 FIC-4SAE panelTable 181 LED descriptionLED DescriptionLINK • Off: No link is present;• On: A link is present.ACT • Off: No data is being transmitted or received.• Flashing: Data is being transmitted and/or received.Figure 150 FIC-8SAE front panelThe FIC-8SAE module provides an LED for each channel. When the LED is on, a link is present.When the LED is flashing, data is being transmitted and/or received.Interface cables and the connection methodsFor more information about asynchronous serial port cables and the connection methods, see"Asynchronous serial ports."FIC-8ASE/FIC-16ASEIntroductionThe 8-/16-port enhanced asynchronous serial interface module (FIC-8ASE/FIC-16ASE) transmits,receives, and processes data traffic on asynchronous serial interfaces. Each asynchronous serialinterface can operate at a speed as fast as 115.2 kbps, supporting terminal access service andasynchronous leased line. In addition, these asynchronous serial interfaces can serve as the dialupaccess servers for the small and medium-sized ISPs to interconnect eight (using the FIC-8ASE) or16 (using the FIC-16ASE) LANs through asynchronous dialup lines.