IBM TotalStorage SAN256N Director 2045-N16, Installation And Maintenance Manual, Page: 76 / 157

SAN256N Director 2045-N16
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Small Form Factor Pluggable (SFP) Transceivers
The SAN256N director Fibre Channel interface and mirror ports on the TFIO blades are
served by fiber optic SFPs. An SFP contains a transmitter and a receiver that sends and
receives electronic data to and from other switches and devices. The fiber optic SFP
converts the electrical signals to and from laser signals. With an SFP of matching
capacity, a port is capable of transmitting data at 1 Gbps or 2 Gbps.
SFPs plug into the TFIO ports, using keyed guides to ensure proper insertion. Fiber
optic cables from other devices plug into LC connectors of the SFPs.
The SFPs are hot-swappable, therefore you can remove or install an SFP while the
switch is operating without harming the switch or the SFP. However, communication with
the connected device will be interrupted.
Figure 30. SFP LC-type transceivers
Installing the SFPs
1. Locate the shipping carton that contains the SFPs contained in a protective static
shield bag and remove the SFPs from carton.
2. Open the protective static shield bag and verify that the media type and number of
SFPs is correct for this installation. Refer to the Port Configuration section of the
SAN256N director Site Configuration Worksheet and install the SFPs in accordance
with this worksheet. This worksheet was completed during the site planning process.
3. Orient the SFP having the wide hinge tab facing toward the bottom of the module (or
left side with “RX” at the top, when looking from the front).
4. Slide the SFP into the port opening until it clicks into place.
Removing an SFP
1. Grasp the plastic tab at the bottom of the SFP, and pull the tab down and toward you
to loosen it from its seat.
2. Pull the SFP out of its receptacle using your thumb and forefinger.
Verifying TFIO port and module operation
You can verify the operation of the TFIO ports and modules by running the External Port
Link Rate Test after the initial installation of a SAN256N director is complete.
Required Tools: Loopback plugs
Top View
Bottom View
Front View