Enterasys 2200 Installation & User Manual page 35

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
.
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.
Figure 3-6.
Connecting to the Network
Installation 3-9