Digital Equipment Corporation RAID Array 3000 storage subsystem Guida Utente Scaricare il pdf (Pagina 51)

Chapter 2. RAID Array Controller

EK–SMCPO–UG. A01 2–23

2.9.2.2 Termination Voltage

The controller monitors the incoming termination voltage levels and ensures they

are satisfactory for controller operation. The acceptable voltage levels are shown

in Table 2–9.

Table 2–9 Acceptable Termination Voltage Levels

State Range Action

Normal 4.20 - 5.40 V Normal Operation

Low Warning 4.00 - 4.20 V Alarm

High Warning 5.40 - 5.55 V Alarm

Low Severe Less than 4.00 V Off-line

High Severe Greater than 5.55 V Off-line

2.9.2.3 12 V Supply Voltage

The controller monitors the incoming 12-volt levels and ensures they are satisfac-

tory for operation. The acceptable voltage levels are shown in Table 2–10.

Table 2–10 Acceptable 12 Volt Levels

State Range Action

Normal 10.80 - 13.80 V Normal Operation

Low Warning 10.20 - 10.80 V Alarm

High Warning 13.80 - 14.40 V Alarm

Low Severe Less than 10.20 V Off-line

High Severe Greater than 14.40 V Off-line

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Digital Equipment Corporation RAID Array 3000 storage subsystem Guida Utente Pagina 51