Introduction
SPS 48/2900 400A System is a compact and intelligent power systemcontaining up to 8 SPS-48/2900 rectifiers, DKD41controller module,AC connection and DC connection. It supports remote monitoring andmanagement with SNMP. 2*1U high rectifier shelf and 3U high controland distribution unit makes it easy installation and adds to thesuccess of the system.

Applications
Fiber optic network
Access network
Transmission equipment
Mobile communication
Satellite communication ground station
2G, 3G base station

Main Features
19'', 5U sub-rack, easy to be embedded into all Standard kinds oftelecom equipment.
System total capacity up to 23.2kw with 50A rectifier;
RS232/RS485 and RJ45 communication interface, SNMP optional
PFC technique features the system high efficiency, energy-savingand up to 0.99 power factor.
Intelligent fan-cooling technique brings good cooling performance,low failure rate and high reliability.
Fast on-line expansion of rectifier modules enabled byhot-swap.
N 1 rectifier module redundancy
Batteries monitoring and management enables backup batteries wellmaintained

Technical Specifications
AC Input Voltage 85V--300V(Normal output
Between 176-300V)
1*three phase five wires input
Frequency 45 ~ 65Hz;
Power Factor ≥ 0.99
Efficiency ≥ 94%, Rated; 95% maximum.
Voltage wave distortion
DC Output Voltage -48V(nominal);
Voltage Range -42V ~ -58V;
Current 400A ultimate capacity
Peak-peak noise ≤ 200mV;
Psophometric noise ≤ 2.0mV
Audible noise ≤ 55dBDC
Rectifier Smart Power I 48/2900
Controller Model: DKD41;
Local operation Menu driven software via keypads and LCD or PC
Remote operation Modem/On-board web server/SNMP
Alarms Relays 8 relays
Digital inputs 9 options (for external equipment and battery)
Operating temp. -40 to 75° C
Storage temp. -40 to 85° C
Relative humidity
Atmospheric pressure 70KPa~106KPa