NonStop S-Series Planning and Configuration Guide (G06.29+)

System Components
HP NonStop S-Series Planning and Configuration Guide—523303-021
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Processor Multifunction (PMF) CRUs
Ports
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Differential SCSI port
The differential SCSI port is on SCSI bus 3 and can be used to attach a supported
tape drive or an Open SCSI device to the system.
On PMF CRUs that are not PMF 2 CRUs, an external SCSI passthrough
terminator is permanently installed in the differential SCSI port.
On PMF 2 CRUs, the SCSI terminator is internal to the differential SCSI port.
•
Ethernet port
System consoles connect to the system through the Ethernet ports on the PMF
CRU in group 01. In other enclosures, this port is used only during online system
expansion.
•
AUX port (currently unused)
•
Modem port (not present on PMF 2 CRUs) (currently unused)
•
Serial console port (not present on PMF 2 CRUs) (currently unused)
•
Serial cable port (only on PMF 2 CRUs) (currently unused)
•
Three ServerNet PIC ports (only on PMF 2 CRUs) (currently unused)
Power Cords, Cables, and Receptacles
•
AC power cord
In S7000 processor enclosures, the AC power cord supplies AC power to power
supplies in the PMF CRU. In S7400, S7600, S7800, S7800B, and Sxx000
processor enclosures, the AC power cord supplies AC power to a power supply in
the power shelf.
Removing the AC power cord from a PMF CRU results in the loss of redundant
power to the PMF CRU. However, the other components in the enclosure are
powered by the other power supply and the batteries.
The S7000 PMF CRU cannot be removed from its enclosure while the AC power
cord is connected to it.
•
AC power cord receptacle
In S7000 processor enclosures, the AC power cord receptacle is on the PMF CRU,
and AC power cords are held in place by a mechanical clamp or latch (the power
interlock).
In S7400, S7600, S7800, S7800B, and Sxx000 processor enclosures, the
communications network AC power cord receptacle is on the power shelf.