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3. Gently insert the cable connector(s) (a tab on each connector should face
upward) into the port connector(s) until the tabs lock into place.
Cleaning fiber optic modules
To avoid problems with the connection between the fiber optic module (SFP or
XFP) and the fiber cable connectors, IBM strongly recommends cleaning both
connectors each time you disconnect and reconnect them. See “Cleaning the fiber
optic connectors” on page 91.
Automatic MDI/MDIX detection
All 10/100 and Gigabit Ethernet Copper ports on the devices support automatic
Media Dependent Interface (MDI) and Media Dependent Interface Crossover
(MDIX) detection. This feature is enabled on all 10/100 and Gigabit copper ports by
default. For each port, you can disable auto MDI/MDIX, designate the port as an
MDI port, or designate the port as an MDIX port.
For more information about this feature and how configure it, see the Configuration
Guide .
Using a CX4 transceiver
A twin-axial 10G copper CX4 XFP transceiver can be installed in any 10G port. for
a link to operate properly, both sides must use identical CX4 transceivers.
The CX4 transceiver requires a 15 meter CX4-grade cable with 24 or 26 American
Wire Gauge (AWG).
Note: The CX4 transceiver is not hot-swappable.
net
4
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0
5
3
Figure 28. CX4 transceiver
Chapter 4. Connecting Network Devices and Checking Connectivity
53