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Table 2-1 describes each LED on the front panel of the hub.
Table 2-1. LED descriptions
Type
Power indicator
Data
Collision indicator
Link *
Receive *
* Link and RX LEDs are located at the top corners of each RJ-45 port connection.
RJ-45 100BASE-TX Ports
The front panel of the Model FE508 hub provides 8 RJ-45 100BASE-TX ports and the Model FE516
provides 16 RJ-45 100BASE-TX ports. These standard RJ-45 connectors accept 2-pair or 4-pair
Category 5 unshielded twisted-pair (UTP) copper wiring (100BASE-TX networks require only
2-pair). The RJ-45 interface is an 8-pin connector.
CAUTION: 100 Mbps operation requires the use of Category 5 UTP wiring with
100 Mbps certified connectors. Refer to Appendix C, "Fast Ethernet and Cabling
Guidelines," for more information on cabling.
An illustration of the RJ-45 connector and a table of pin assignments are in Appendix B, "Connector
Pin Assignments." Table B-1 provides the pin out information for the Normal (MDI-X) RJ-45
connector and the Uplink (MDI) RJ-45 connector.
Two LEDs are positioned at the top corners of each RJ-45 connector. The left indicator is the Link
LED and the right indicator is the RX (receive) LED. Both LEDs are described in Table 2-1.
Physical Description
Installation Guide for the Model FE508 and FE516 Fast Ethernet Hubs
Label
State
Power
On
Data
On
Collision
Blinking
Link
On
Off
RX
Blinking
Description
Power is supplied to the hub.
Data is being received and transmitted to/from the hub.
There is data collision on the network.
A link is established successfully between the hub and
the PC or workstation.
No data link and/or the cable is not connected.
There is incoming data on the port.
2-3
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