D-Link DES-5024 - Manual (Page 37)

Fast Ethernet Switching System User’s Guide
LEDs 29
1-Port 1000BASE-SX Module
Figure 14: 1-Port 1000BASE-SX Module
The gigabit expansion module, displayed in Figure 14, has one port.
Link
The link LED lights to indicate there is a link at the port.
Act
Act means activity. The Activity LED indicates the port is transmitting or receiving data.
Table 6: Gigabit Module LED
LED Lit Dark
Link
(Green)
Port is linked to another device No link
Act
(Yellow)
Port is transmitting or
receiving data Port is not transmitting or
receiving data
1000BASE-SX Switched ports module
Act Link