Compaq AlphaServer GS60E Installation Manual page 49

Figure 4-8 shows a system with six PCIs (DWLPBs). In this configuration, two
KFTHAs are in TLSB slots 8 and 7. There are six PCIs, two in the system
cabinet and four in the expander cabinet.
Cabling Guidelines
1. The PCIs in the system cabinet are connected to the KFTHA in slot 7.
2. The PCIs in expander cabinet are connected to the KFTHA in slot 8.
3. If there are two expander cabinets, the PCIs in the right expander are
connected to the KFTHA in slot 8, and the PCIs in the left expander are
connected to the KFTHA in slot 6.
4. The cable from the topmost connector on the KFTHA is connected to the PCI
in the lowest position in the expander, the cable from the next topmost
position is connected to the PCI that is above the lowest one in the
expander. The other two cables follow this principle.
To install the cables:
1. Plan your cabling carefully, taking into consideration the above conditions
and how the cables are routed and bundled as shown in Figure 4-8.
2. Each PCI must be connected to a KFTHA. Cable 17-03085-04 connects the
KFTHA to the PCI in the system cabinet and connects the PCIs in the
expander cabinets to KFTHAs in the system cabinet.
3. Using a flathead screwdriver, install the end of the I/O cable labeled IOP
(PN 17-03085-04) to the KFTHA connector. Be sure the connector is aligned
before tightening the screws.
4. Route the I/O cable(s) as shown in Figure 4-8.
5. Using a flathead screwdriver, install the end of the I/O cable labeled PIU to
the appropriate PCI (see Figure 4-8).
6. Once all cables are connected, place tie wraps on them and secure them as
best you can in the positions shown in Figure 4-8.
Installing an Expander Cabinet 4-13