1.1 INTRODUCTION
First of all, thank you for purchasing MX3 series 2+1 mini redundant power supply.
The MX3 series is a 2+1 hot-swappable / hot-pluggable redundant power supply. It
consists of,
1) complete metal frame
2) compact size power module
3) backplane
It is composed of 2+1 pieces power modules. The number 2+1 stands for there is an
extra power module to backup the system if any power module fails.
The power module is in compact size, and built-in a 40mm ball bearing DC fan.
Particularly, a 80mm DC fan is built unto the rear side of the power system to offer
better ventilation and reliability (not available for MX3 series). Each power module is
designed with 6 outputs (+3.3V, +5V, +12V, -5V, -12V, and +5Vsb) circuits, and
compliant to ATX12V / EPS12V. All you can see on the backplane is just passive
components and this is the key point for longer MTBF.
The MR3 series offer a warning sub-system, including LED display, buzzer alarm, TTL
signal, and I2C interface device (optional). It guides user the fast way to find out the
power supply status.
When all the power modules operate normally, it balances the load share through its
parallel design, which increases the reliability of power system.
To really discover the power system and ease in using it, we recommend you to read
through this manual carefully.
1.2 PACKING
Your MX3 series should consist of the following,
a) MX3 series x 1
b) Accessory pack x 1
c) Product Manual x 1
1.3 MODEL DESINGATION
Model number identification
MX3 – 6550P / 6600P
MX3 --- 2+1 mini redundant power supply, AC input
6 --- 6 output channel (+3.3V, +5V, +12V, -5V, -12V & +5Vsb)
550 / 600 --- total output power (unit: watts)
P --- built-in PFC (full range)
1.4 FEATURES
MX3 series, 550W / 600W, 2+1 redundant power supply with active PFC, complaint to
ATX12V / EPS12V
l True redundant design (passive packplane)
l N+1 power system design
l All circuit designed into the power module
l Hot-swap and hot-plug ability
l Full range (90VAC – 264VAC) operation
l Active Power Factor Correction (PFC) built-in
l Balance load sharing design
l Remote sensing design
l Meet FCC, CISPR EMI regulation
l Faulty free- slide rail design
l Smart I2C interface design (optional)
l Dual EMI line filter inlets design
l Designed with one 40mm ball bearing DC fan on power module
l An 80mm ball bearing DC fan on the rear side of power system (not available for
MX3 series)
1.5 DRAWING