D-Link DES-3624i User Manual page 25

Stackable NWay Ethernet Switch User's Guide
100M These indicators are illuminated green when a 100 Mbps device is connected to any of the 22+2 or 20+2 ports
or uplink port. If a 10 Mbps device is connected to any of the 24 ports or uplink port, these LEDs remain dark. When
a port is active, these indicators will blink green.
Link/Act These indicators are lit when there is a secure connection (or link) to a device at any of the ports. The
LEDs blink whenever there is reception or transmission (i.e. Activity--Act) of data occurring at a port.
Identifying External Components 25