Technical data

31-meter (101.7-foot) (BN34R-31) lengths. Customers may provide their
own fiber-optic cables to achieve greater separation of systems.
• Always examine a Memory Channel link cable for bent or broken pins.
Be sure that you do not bend or break any pins when you connect or
disconnect a cable.
2.2.4 KZPBA-CB UltraSCSI Host Bus Adapter Restrictions
KZPBA-CB UltraSCSI adapters have the following restrictions:
• The KZPBA-CB UltraSCSI host bus adapter is a 5V 32-bit/33-MHz
module and therefore is restricted to PCI bus 0 (slots 3, 6, 9, and 10).
• Only four KZPBA-CBs are supported. If a Memory Channel module
or any other modules are installed in PCI 0, the maximum number of
KZPBA-CB modules is reduced by the number of other modules installed
in PCI 0 slots.
• The KZPBA-CB requires ISP 1020/1040 firmware Version 5.57 or higher,
which is available with the system SRM console firmware on the Alpha
Systems Firmware 5.3 Update CD-ROM (or later).
• The maximum length of any differential SCSI bus segment is 25 meters
(82 feet), including the length of the SCSI bus cables and SCSI bus
internal to the SCSI adapter, hub, or storage device. A SCSI bus may
have more than one SCSI bus segment.
• See the KZPBA-CB UltraSCSI Storage Adapter Module
Release Notes
for more information.
Hardware Requirements and Restrictions 2–7