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Intel
®
NetStructure
TM
ZT 7102 Chassis Management Module
Hardware Specifications
32 Technical Product Specification
2.10.1 Switch Descriptions
The following topics provide a detailed description of each switch.
2.10.1.1 S1 (Alarm Cutoff and Board Reset)
S1 is a push button at the faceplate of the ZT 7102. S1 toggles the CMM's alarm cutoff (ACO)
state. When ACO is activated, the active alarm LEDs blink and the alarm relays are deactivated.
This button does not clear alarms.
The Alarm Cutoff feature automatically cancels itself under the following conditions:
• When the ACO is engaged for more than 10 minutes without an active alarm present. This
prevents the ACO from being accidentally left engaged after an alarm is cleared).
• When the ACO is engaged for more than x minutes, even if an active alarm is present (x can be
set in the Command Line Interface with the Data item keyword AlarmTimeOut, see Table 23,
“dataitem (-d) Keywords for All Locations” on page 58).
In addition to its ACO function, S1 is used to reset the CMM by pressing and holding the button for
about five seconds. Reset is discussed in more detail in Section 4.0, “CMM Redundancy,
Synchronization and Failover” on page 39.
2.10.1.2 SW1-1 (Password Reset)
Closing this switch resets the CMM's root logon password. Use this feature if you forget your
password or want to restore the default root password for other reasons. For more information
about resetting to the default root password, refer to Section 9.0, “Resetting the Password” on
page 63.
2.11 Processor and Chipset
The Intel
®
IOP310 chipset contains two devices, the Intel
®
80200 processor and the Intel
®
80312
I/O companion chip. The 733 MHz 80200 processor features 32 Kbit data and instruction caches.
The 80312 companion chip provides a memory controller and a PCI interface for the CMM's
Ethernet controllers. Appendix E, “Datasheet Reference” contains a link to the datasheet for the
chipset.
The ZT 7102 uses the Intel
®
IOP310 I/O processor chipset. Based on Intel XScale
®
microarchitecture, this chipset combines high performance processing with ultra-low power
consumption.
Table 17. SW1-1 Functions
SW1-1 Function
Open [default] Does not reset the CMM's root password at reboot.
Closed Resets the CMM's root password at reboot.