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Operating Considerations 11
Transmit and
Receive Ports on
GBIC Modules
■ When a GBIC module is inserted in the a GBIC Gigabit Ethernet
Module (Model Number 3C16826 or 3C16843), the Receive port is
the top port and the Transmit port is the bottom port.
These ports are in opposite positions on the 1000BASE-SX Gigabit
Ethernet Module (Model Number 3C16825), with the Transmit port at
the top and the Receive port at the bottom.
Hot Swapping CAUTION: Be sure to follow the proper procedures for removing a
module from the chassis, otherwise the system will crash and restart itself.
CAUTION: The interface modules cannot function unless a Switch Fabric
Management Module is installed in the chassis.
To remove a Switch Fabric Management Module or interface module
from the Switch 4005 chassis, follow these steps:
1 Press the recessed button on the module’s front panel to start the
module shut-down procedure, and wait until the module’s Release
LED (R) stops flashing before taking any further action. Also note that
the Command Line Interface will indicate when the shut-down
procedure has been completed.
CAUTION: The recessed button on the module’s front panel must be
pressed before removing the module. When the Release LED flashes, the
module is completing the transfer of the current packets through its ports
before it halts operation. Wait until this LED stops flashing (i.e., changes
to steady Amber) before you remove the module.
2 Loosen the spring-loaded screws at each end of the front panel, using
a flathead screwdriver.
3 Grasp the top ejector handle with the thumb and forefinger of one
hand, and the bottom ejector handle with the other hand.
Simultaneously pull the ejector handles until each handle is
perpendicular to the front panel. You will feel a slight resistance as the
connectors disengage.
CAUTION: Do not twist or bend the module when you remove it from
the chassis.
WARNING: Hazardous energy exists inside the chassis. Do not place
hands or objects into the chassis or touch components on a partially
inserted module.
4 Gently pull the module out of the chassis, along the guides at the top
and the bottom of the slot.