Connecting to the Network

Each fiber optic link consists of two fiber optic strands within the cable: the transmit (TX) and the receive (RX). The transmit strand from a 2H258-17R port connects to the receive port of a fiber optic Fast Ethernet device at the other end of the segment. The receive strand of the applicable port on the 2H258-17R connects to the transmit port of the fiber optic Fast Ethernet device.

Enterasys Networks recommends labeling fiber optic cables to indicate receive and transmit ends. Many cables are prelabeled, providing matching labels or tapes at both ends of each strand of cable.

The following instructions detail the process used to connect a MT-RJ connector to a 2H258-17R port.

1.Remove the protective covers from the fiber optic ports on the applicable port on the device, and from the connectors on each end of the cable.

NOTE: Leave the protective covers in place when the connectors are not in use to prevent contamination.

CAUTION: Do not touch the ends of the fiber optic strands, and do not let the ends come in contact with dust, dirt, or other contaminants. Contamination of cable ends causes problems in data transmissions. If the ends of the fiber optic strands become contaminated, use a canned duster to blow the surfaces clean. A fiber port cleaning swab saturated with optical-grade isopropyl alcohol may also be used to clean the ends.

2.Insert the MT-RJ fiber optic cable connector on the cable into the MT-RJ connector on the device until it clicks into place. See Figure 3-6.

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CAUTION: To remove the cable connector, press on its release tab and then pull the connector out of the MT-RJ connector on the device.

Installation 3-9

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Enterasys Networks 2200 manual Connecting to the Network