Emerson NetSure DCS 48375 Data Sheet

NetSure® DCS 48375
DC-DC Converter System
DC Power for
Business-Critical Continuity
Key Features
n Modular design — provides for system
redundancy and easy expansion of operating capacity in small increments
versions
n Expandable — combine up to 3 shelves
for 375 amp ultimate capacity and up to 60 bullet positions
n Hot insertion capability — allows for
system expansion without disruption
n Equipped for dedicated input feed per
module and dual input feed per shelf – isolated input to output
n Safety compliance — NEBS Certified; UL
recognized
Compact, cost effective, modular design, ideal for +24 VDC applications requiring -48 VDC output.
DC-DC Converter Shelf
Description
The NetSure® DCS 48375 modular DC to DC converter shelf provides up to 375 amps at -48 volts DC via high frequency switch mode converters rated at 1500 watts (31.25 amps) each. The modular design allows the converter’s capacity to expand as your system expands. Each DCS 48375 converter shelf can accept four individual, plug-in converter modules per shelf that can be easily installed live without system interruption. Each shelf provides 6000 watts (125A max) at -48VDC to -52VDC with 20 bullet positions (23" mount) or 15 bullet positions (19" mount) in four rack units (7") of height.
Standard Features
n Converter MINOR alarm
n Converter MAJOR alarm
n Fuse / CB alarm
n Current limiting
n Over-voltage protection
n Over-temperature protection
n Load sharing for parallel operation
n Easily accessible input and output
connections for simplified installation
n Test points for output current and
voltage measurement
n Emergency power off
Application
The NetSure® DCS 48375 converter shelf is compact and easy to expand, making it ideal for +24 VDC wireless, cellular radio and microwave sites requiring -48 VDC output.
Ordering Information
Part Number Model Number Description
584622300 DCS48375 Main shelf, 23" 584622400 DCS48375 Expansion shelf, 23" 584622100 DCS48375 Main shelf, 19" 584622200 DCS48375 Expansion shelf,19" 1C24481500 C24/48-1500 NetSure
®
DC/DC converter module
1143D-NSDCS375 / 0912
NetSure® DCS 48375
Specifications
Input
Voltage Current Circuit Protection Filtering Noise reflected back to the battery is less than 32dBrnC and is within the parameters set
Efficiency
Output
Voltage Current 31.25 amps per DC-DC converter module, up to a total of 125 amps per shelf
Regulation Steady state output voltage remains within ±1% of the pre-adjusted voltage for any load cur-
Dynamic Response For a step load change within the range of 20% to 100% of full rated current, the maximum
Filtering Voice band noise is less than 32dBrnC. Wide band noise does not exceed 250 mV peak to
Protection
Overvoltage Each DC-DC converter module will automatically shut down and lock out should its output
Overcurrent
Over Temperature Each DC-DC converter module will automatically shut down if the internal temperature of
Status/Alarm Indicators
Shelf
Module Output OK LED (green) if output voltage is between the low and high voltage alarm limits
24.0 volts DC nominal, with range of 20.5 to 30.0 volts DC
83.3 amps maximum (at full load for one module, 21VDC input) Fuse is located in the positive input lead of each converter module
forth in Telcordia technical reference TR-TSY-000009, using test measurements in PUB43802, pages 5 and 6
90.8% typical
-48.0 VDC, -50.0 VDC, -52.0 VDC and -54.0 VDC selectable
with four modules installed.
rent from no load to full load and over the specified input voltage range
voltage transient will not exceed 5% of the initial steady state voltage
peak over the frequency range of 0 to 100 MHz. Wide band noise does not exceed 50 mV rms over the frequency range of 0 Hz to 100 MHz.
voltage exceed 115% to 125% of nominal voltage. Manual restart is necessary after the over­voltage condition is corrected.
When the output current of a DC-DC converter module increases to a preset value between
102.5% to 115% of rated full load, the output voltage of the module will automatically decrease to limit current to this value. The output will recover to within specified limits when the overload condition is removed.
the module exceeds a predetermined value. Operation will automatically resume after the over-temperature condition is removed.
Minor alarm LED (yellow) and form-C contact for a single DC-DC converter module failure Major alarm LED (red) and form-C contact for two or more DC-DC converter module failures Input OK LED (green) if the input voltage source is within operating limits Fuse alarm (red) and form-C contact if any GMT load fuse opens E Stop RTN signal will shut down all converter modules Test points for output current and output voltage
and fan is operating normally.
1500 Watt Converter Module
Environmental
Operating Temperature Storage Temperature Humidity Altitude Maximum operating ambient temperature should be derated linearly
Audible Noise The audible noise at any point 2 ft. from any vertical surface of the shelf shall not exceed
EMI/RFI Suppression This unit conforms to the requirements of FCC Part 15, Subpart B, Class B; EN55022, Class B
-40°C to +65°C (-40°F to +149°F), power derated to 80% at 65°C (149°F)
-40°C to +85°C (-40°F to +185°F) 0% to 95% relative humidity, non-condensing
(3°C per 1000 ft.) at elevation above 5000 ft.
60dB-A per ANSI S1.4.
for radiated and conducted noise; and GR-1089 CORE for conducted noise.
EmersonNetworkPower.com/EnergySystems (North America) EmersonNetworkPower.eu/EnergySystems (EMEA)
© Emerson Network Power Energy Systems North America 2012.
Business-Critical Continuity™, Emerson Network Power™, the Emer son Net work Power l ogo, Emer son® and Consi der it Solv ed are ser vice mark s and trade marks of Em erson
Electric Co. EnergyMaster
2 143D-NSDCS375 / 0912
, eSure™, NetPerform™, NetReach™, NetSpan™, NetSu re® and NetXtend™ are trad emarks of E merson Ne twork Po wer Energ y Systems Nor th Amer ica.
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