Front of Unit
Media Connector
with electronic
elements
Right
Side
Cooling Fan
Power Supply Board
Left
Side
LED Status Slot
FKM Slots
AC Power Input
Back of Unit
Figure 3.4.1 b: RFL 3000 4K24F Switch, Top View without Chassis Cover
Step 2. Remove Retaining Screws on top of existing FKM or Face Plates
Looking inside the unit, there is one retaining screw on the top of each FKM module.
This screw is used to secure the FKM face plate in position. This screw is also used to
secure the FKM module, which can be subjected to significant forces from the fiber
attached cables. (See Figure 3.4.1c)
2X 4X 6 8 10 12 14 16 18 20 22 24
1 X 1 3 5 7 9 11 13 15 17 19 21 23
Magnum 4024F Switch
100M
Col/FDX
Link/Act
Power
100M
Col/FDX
Link/Act
TX
X
TX RX
Top of FKM
Retaining Screws
Figure 3.4.1c: Front View - FKM Retaining Screws hold Face Plate
Step 3. Change out the FKM or Face Plates
FKM module removal is covered in Sect.3.4.3, installation in Section 3.4.2.
3.4.2 Installing FKM Modules in RFL 3000 4K24F Switches
Up to two front-mounted fiber ports may be installed in one RFL 3000 4K24F
Switch unit via an FKM. Follow these steps to install a FKM.
Step 1.
Remove top chassis cover. See procedure in Section 3.4.1 above.
Step 2.
The figure here illustrates the basic layout of an individual FKM module. Each
FKM module fits into the selected FKM connector header. Align the connector socket on
the bottom of the FKM module with the connector pins on the main board header. The
pins are straight and firm to facilitate the installation.
