NonStop NS14000 Planning Guide (H06.08+)

Additionally, cable spools mounted on the inside of the cabinet structure provide the means for
looping and containing free lengths of fiber-optic cables to prevent damage.
Internal Interconnect Cables
Integrity NonStop NS14000 systems use predominantly multimode fiber-optic (MMF) cables for
ServerNet interconnection of:
• NonStop Blade Elements to LSU
• LSU to VIO enclosure
• VIO enclosure to VIO enclosure
• VIO enclosure to Fibre Channel disk module (FCDM)
• VIO enclosure to ESS disks
MMF cables are usually orange with a minimum bend radius of:
• Unsheathed: 1.0 inch (25 millimeter)
• Sheathed (ruggedized): 4.2 inch (107 millimeter)
You can use fiber-optic cables available from HP, or you can provide your own fiber-optic cables.
If you provide your own fiber-optic cables, follow the appropriate HP specification for the type
of cable you provide. You can obtain the specification from your HP product representative.
HP SpecificationCable Type
526160MMF
526020SMF
Verify that the link does not exceed the maximum allowable loss. Use a calibrated optics power
source to measure the optics power at the distant end of the cable and then calculate the
attenuation. Loss of 10.5 db or less is acceptable. Attenuation above 10.5 db might appear to
work, but the bit error rate might be unacceptable and require repairing or replacing the cable.
Connections from a VIO enclosure to a Model 6780 cluster switch can use single-mode fiber-optic
(SMF) cabling.
Fiber-optic cables use either LC or SC connectors at one or both ends. This illustration shows the
connector pair for an LC fiber-optic cable:
This illustration shows the connector pair for an SC fiber cable:
Dedicated Service LAN Cables
The system also uses Category 5, unshielded twisted-pair Ethernet cables for the internal dedicated
service LAN and for connections between the VIO enclosure and the application LAN equipment.
Internal ServerNet Interconnect Cabling 79