Setup guide

10-26
EPC Connecting Guide
IDENTIFICATOR DESCRIPTION
DCCG140–0000 PCI Enhanced Fibre Channel Adapter
DCCG147–0000 PCI 64–bit Copper Fibre Channel Adapter
DCCG148–0000 PCI 64–bit Optical Fibre Channel Adapter
Copper and Fiber cables, MIA, Hub and Extender Links for Fiber Channel
Attachments
IDENTIFICATOR
DESCRIPTION
DCOQ001-0000 FC MIA 1/M5/DCS
LNCQ001-0000 FC-AL Hub 1GB 9-Ports
RCKQ003-0000 Rack Kit/1 LNCQ001
RCKQ004–0000 Rack Kit/2 LNCQ001
FCCQ001-1800 Cord 2FO/M5/DSC 5M
FCCQ001-2100 Cord 2FO/M5/DSC 15M
FCDF001-0000 FC Link Extender CU/SM
FCCQ002-1000 Cord 2CU/DB9 0.5M
FCCQ002-1500 Cord 2CU/DB9 3M
FCCQ002-2000 Cord 2CU/DB9 10M
FCCQ002-3500 Cord 2CU/DB9 30M
Examples of Use for SCSI Technology
The length of the cables  used between nodes and DAS is per default of 6m. Such a 6m
cable allows to dispatch the CPU drawers (Nodes) and the DAS drawers in separate racks.
The 3m cable is used between a node and a DAS drawer located within a same rack. The
ordering document mentions the position of the CPU drawers and the DAS drawers in the
racks. This comment applies to examples shown in Figure 75 to Figure 78.
Regarding cables  used between nodes, the 2.5 m long cable is used between nodes in
different racks whereas the cable of 0.6m length is used between nodes in a same rack. In
any case the total length of all the used cables must not exceed 18m.
There are two types of Y cables. CKTG070 cables are used with PCI adapters
(EPC1200/A/2400/440 and EPC400/430 nodes) whereas CKTG049 cables are for MCA
adapters (EPC800 nodes).
CAUTION:
Remove any SCSI terminators on the SCSI adapter. External terminators must be
used in a HACMP cluster. If you terminate the shared SCSI bus on the adapter, you
lose termination when the cluster node that contains the adapter fails.
So, for instance, before connecting the Y cable on an EPC1200/A/2400/400 node, you must
remove the terminator (P/N 42G3326) of the PCI Differential Ultra SCSI adapter (type 4-L
FC 6207).