Installing SFPs
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Connecting cables
Attention: With increasing speeds of optical connections, the cleanliness of the
connections assumes greater importance in ensuring maximum performance and
error free transmission. Due to the tighter tolerances associated with state of the art
optics, levels of contamination that were acceptable at lower speeds may not be at
higher speeds. While IEC Standard 61300-3-35 specifies a set of guidelines for
trouble free performance, most issues can be avoided by adhering to the following
best practices:
v When cables or connectors are not in use for extended periods of time, use the
dust covers provided.
v Ensure that the cable length and type that is used are suitable for the speed and
application.
v Inspect and clean optical connections and fiber cables before you connect or
reconnect components.
v Ensure that cables are properly seated within the connector.
Kits are commercially available for cleaning and inspecting these connections. IBM
also offers services that will ensure optimal condition of the network.
Perform the following steps to install SFPs and cable the switch.
1. Install the SFP transceivers in the Fibre Channel ports, as required. The ports
selected for use in trunking groups must meet specific requirements. For a list
of these requirements, see the Fabric OS Administrator's Guide.
a. Remove the plugs from the ports to be used.
b. Ensure that both cable and transceiver are clean prior to installation.
c. Position a transceiver so that it is oriented correctly and insert it into a port
until it is firmly seated and the latching mechanism clicks. For instructions
specific to the type of transceiver, see the transceiver manufacturer's
documentation.
Note: The transceivers are keyed to ensure correct orientation. If a
transceiver does not install easily, ensure that it is correctly oriented.
d. Repeat steps 1a through1c for the remaining ports, as required.
2. If you have chosen to use the optical ports for ge0 and ge1, install those SFPs.
If you have licensed the additional GbE ports, install the SFP transceivers in
GbE ports ge2 through ge5.
a. Remove the plugs from the ports to be used.
b. Ensure that both cable and transceiver are clean prior to installation.
c. Position a transceiver so that it is oriented correctly and insert it into a port
until it is firmly seated and the latching mechanism clicks. Be sure that you
are using Brocade-branded 4 Gbps SFPs in the GbE ports.
d. Use the portcfggemediatype command to configure ge0 and ge1 to either
copper or optical. For instance, to select the optical option for port ge0, use
the following command.
switch:admin> portcfggemediatype ge0 optical
Attention: A 50-micron cable should not be bent to a radius less than 5 cm (2 in.)
under full tensile load and 3 cm (1.2 in.) with no tensile load. Tie wraps are not
recommended for optical cables because they can be easily overtightened.
Chapter 2. Installing and configuring the SAN06B-R
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