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2-10 SPARC Enterprise M8000/M9000 Servers Site Planning Guide • April 2008
2.2.3.2 Electrical Specifications
TABLE 2-2 and TABLE 2-3 list the electrical specifications for the UPS interface.
Input circuit
Remarks: Signal-line chatter must be 1ms or less.
Output circuit
TABLE 2-2 Electrical Specifications
Signal name Input conditions
*BPS/*UALM • No voltage relay contact
• Contact rating DC 12 V, 10 mA or more (maximum 0.5A)
• Use of metallic contact, or lead relay is recommended.
*BTL
*ACOFF
TABLE 2-3 Electrical Specifications
Signal name Output conditions
ER Output Voltage VOH 3.76 VDC (min)
VOL 0 to 0.4 VDC (max)
Output Current VOH -4 mA (max)
VOL 4 mA (max)