Enterasys A4H124-24FX, Hardware Installation Manual, Page: 50 / 66

Connecting to the Network Connecting to Modem
2-26 Installation
Figure 2-17 Connecting a Fiber-Optic Cable Segment to Fixed MT-RJ Port
Connecting Fiber-Optic Cables to SFP Ports
Before connecting cables to SFP ports, you must install the appropriate transceiver as described in
“
Installing an Optional SFP Transceiver ” on page 2-22. This section describes how to connect a
1-Gigabit fiber-optic segment from the network or other devices to an SFP port connector (LC or
MT-RJ).
Each fiber-optic link consists of two fiber-optic strands within the cable for Transmit (TX) and
Receive (RX). The transmit strand from a device port connects to the receive port of a fiber-optic
1-Gigabit Ethernet device at the other end of the segment. The receive strand of the applicable LC
or MT-RJ port connects to the transmit port of the fiber-optic 1-Gigabit Ethernet device.
To connect an LC or MT-RJ cable connector to an SFP port connector:
1. Remove the protective covers from the port SFP and from the connectors on each end of the
cable.
2. Insert the cable connector into the
SFP
connector until it clicks into place.
3. Plug the other end of the cable into the appropriate port on the other device. Some cables may
be terminated at the other end with two separate connectors, one for each fiber-optic strand. In
this case, ensure that the transmit fiber-optic strand from the A4 switch is connected to the
1 MT-RJ cable connector 2 MT-RJ front panel port 3 Front panel port Link/Activity LED
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.
Precaución: No toque los extremos de los cables de fibra óptica y evite su contacto con el polvo,
la suciedad o con cualquier otro contaminante. Si los extremos de los cables se ensucian, es
posible que la transmisión de datos se vea afectada. Si nota que losextremos de los cables de
fibra óptica se ensucian, utilice aire comprimido paralimpiarlos. También puede limpiarlos con un
estropajo embebido en alcohol isopropílico.
Note: Leave the protective covers in place when the connectors are not in use to prevent
contamination.