IBM Switch 9077 - Manual (Page 43)

Router Node 25
Figure 11. GRF Models
The SP Switch Router model 9077 04S (GRF 400) can accommodate up to
four media adapters.
The SP Switch Router model 9077 16S (GRF 1600) can accommodate up to
16 media adapters.
Each adapter enables the GRF to connect to one or more networks.
Each of the models has an additional slot for the IP Switch Control Board,
which is used to control the router.
GRF 400
PartDescription
Cooling FansThese are located on the right side of the chassis and cannot
be accessed without bringing down the GRF. The
fans are redundant, allowing service to be
deferred until it is convenient to bring down the
GRF.
Media CardsThere are four media card slots on this chassis. They are
slotted horizontally and are located at the bottom
of the chassis.
IP Switch Control BoardThis board is located at the top of the four media
slots and is also slotted horizontally.
Cooling Fan Drawer
IP
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Power
Supply
Power
Supply
21"
GRF 1600 GRF 400
IP Forwarding Media Card
IP Forwarding Media Card
IP Forwarding Media Card
IP Forwarding Media Card
IP Switch Control Board
Power
Supply
Power
Supply
5.25"
19"
19"