> Cabling the Fast Ethernet (10/100) Line Card
> This chapter provides information on the Fast Ethernet Line Card (FELC) interfaces and instructions for installing the cables.
> FELC Interfaces
> The FELC (Ethernet 10/100) has eight RJ-45 interfaces, as shown in the figure below. Each of these is an auto-sensing 10Base-T/100Base-TX Ethernet interface that terminates a shielded twisted-pair (STP) copper cable. The interfaces are labeled 1 through 8 from top to bottom.
> Important: To comply with GR-1089 intra-building, lightning-immunity requirements and ensure compliance with FCC Radiated Emissions Criteria, you must use shielded-twisted pair cable and ensure that it is properly terminated at both ends.
> Ethernet 10/100 Line Card Interface Connectors
> The system uses these interfaces to connect to other elements in the packet data network.
> Each of these interfaces is equipped with two light emitting diodes (LEDs):

> • | Link: This green LED shows whether or not the line card is connected to the network. The LED is illuminated when the card is connected.

> • | Activity: This green LED shows when data is transmitted or received. The LED is illuminated when data is passing through the interface.

> Refer to the following figure and table for pinouts for the RJ-45 Ethernet ports.
> 10/100 Ethernet Interface Pinouts
> 10/100 Ethernet Interface Pinouts

> Pin | 100Base-T 100Mbps Cat5
> 1 | TX+
> 2 | TX-
> 3 | RX+
> 4 | Not applicable
> 5 | Not applicable
> 6 | RX-
> 7 | Not applicable
> 8 | Not applicable
> RX = Receive Data TX = Transmit Data

> ‌
> To cable the FELC, simply plug an STC Ethernet cable from a network device into the desired port.

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