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Redundant power supply
Duplex DC power supply system
The PS 5090 series power supplies are modular DC power supplies
for use in computer
frame relay. Its modular architecture allows you to build a redundant power supply system,
PS 5093, by duplex (parallel)
operation of two PS5091 plug-in modules.
The paralleled
PS5091 modules automatically share the output current equally between them.
Thus, undesired imbalance of the output currents is avoided. If either PS5091 module
fails,
the other module
solely feeds a load current. The PS5093 is capable of outputting
a maximum of 220 W compared to the rated output power of 110 W
(because each
PS5091 shares the rated output power with the other module). To
ensure accurate output
voltage, the DC outputs are compensated for the voltage drop across the output current
summing diodes.
Each
PS5091 module can be replaced with
new one without shutting down the system.
This
"hot-swappable" module design facilitates ease of
maintenance
and reduces your
total cost of ownership (TCO).
PS 5090 series Redundant Power Supply Configuration
and Selection Guide
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