CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 16 May 2006 23
Selective High-Voltage Shutdown Above 58 Vdc
Backup High-Voltage Shutdown Above 60 Vdc for 1 millisecond
Table 2-J: QS865A Rectifier Specifications
Nominal Output Voltage 48/52/54.5 Vdc
Operating Output Voltage Ranges 42 to 58 Vdc
Boost Voltage 48 to 58 Vdc
Output Current 0 to 50A at 54.5V
Nominal Input Voltage 200/208/240 Vac
Input Voltage Ranges 150 to 275 Vac
Input Current 14.5A at 208 Vac
Operating Frequency Range 45 to 66 Hz
Operating Temperature -40 to +65 °C
Output Voltage Regulation ±0.5%
Output Noise, Ripple 250 millivolts peak to peak maximum, over the
range dc to 100 MHz
Load Share Accuracy 1.5A maximum deviation between rectifiers
Heat Dissipation (per rectifier, full load) 267W (911 BTU) at 240 Vac operation
Power Factor >0.98 for loads > 50% full load
Selective High-Voltage Shutdown Above 58 Vdc
Backup High-Voltage Shutdown Above 60 Vdc for 1 millisecond
Table 2-K: QS820A Ringer Specifications
Input Voltage -40 to -57 Vdc See Output VA Thermal Limiting.
Nominal Input Voltage -48 Vdc
Input Current 5 A max.
Output
Voltage
ac Component
65 to 100 Vac
Factory Default: 100Vac
ac tolerance ± 5 Vac
Regulation ±5% ac component only
dc Offset
Type of ringing
Battery Backed
Ground Backed
Ground Backed no-dc
• -40 to +57 Vdc Battery Backed
• +40 to +57 Vdc Ground Backed
• 0 Vdc Offset Disabled
• dc Offset tracks dc Input Voltage
• Factory Default: Enabled
• Battery or Ground Backed is selected by Ringer
Chassis jumper J12 or by external connection of
Ring Rtn to Battery or to Ground. Factory Default:
Battery Backed by Jumper
See figures in the Ringer section.
dc Offset Tracking
Error
± 3 Vdc
Harmonic Distortion 5% THD
Crest Factor 1.21 to 1.51
Output Frequency 15 to 50 Hz
Factory Default: 20 Hz
Frequency tolerance ± 1 Hz
Output VA 100 VA
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