Zippy MRW-6420P - Manual (Page 3)

1.1 INTRODUCTION
First of all, thank you for purchasing MRT/MRW Series – PS/2 size Mini
Redundant power supply. The MRT/MRW Series are 1+1, Hot
swappable/Hot-pluggable/Redundant power supply set, it consists of:
(1) Complete metal frame (nickel-plated)
(2) Compact size (real PSII form factor) 1+1 power modules
(3) Backplane board
The MRT/MRW Series of hot swappable redundant power supply offer
maximum 300/320/400 watts of output power. The MRT/MRW series provide
Active Power Factor correction (PFC) at full range AC Input that complies with
IEC 1000-3-2 for CE norms. The units are compact size as PS/2 form factor and
all the power modules are built interior 40X40X20 mm /40X40X28 mm ball
bearing DC fans for better ventilation. Each power module has been designed
with +3.3V, +5V, +12V, -12V, -5V & 5VSB circuits. All you can see on the
backplane board are passive components and this is the key point of greater
MTBF.
The units also provide a warning sub-system, including LED display, buzzer
alarm, TTL signal etc.. At the same time, it also indicates the status of the power
system and DC fans.
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