- Metrobility Optical System 8100 Managed Hub 10/100Mbps Installation & User Guide 8124-01-M, 8124-01-S, 8112-01-M, 8112-01-S

Using Expansion Modules 27

FX Module LED Indicators

The LEDs on each module indicate port activity. All LEDs are green.

• Link: On, indicates a link is up.

• TX: On, indicates a transmission in progress.

• RX: On, indicates receiving data.

• FDX: On, indicates the port is set to full duplex.

Off, indicates the port is set to half duplex.

• Collision:On, indicates collision occurring.

FX Module LEDs

NOTE: Fiber Modules support 100Mbps only.

Full Duplex

Collision

Link up

Transmit

Receive

3 Ports

Switch Module

FDX

COL

LINK