The document discusses a Standard Control Unit (SCU) that provides remote monitoring, configuration, status information, and control of a DC power plant's voltage, current, and alarm levels. The SCU can be upgraded to an Advanced Control Unit (ACU) through a simple swap, allowing for more extensive monitoring and control of auxiliary equipment on site. Benefits of the SCU/ACU include minimized installation time, high quality failure information, true hot plug installation, quick failure analysis, and extended battery life through advanced battery management.

1. DC Power for
Business-Critical Continuity
The SCU provides detailed information and alarms regarding the condition and
status of the Telecom sites's power plant. If maintenance and site visits related to the
power plant are based upon this information, they can be optimized to save both
time and money, especially if the site is located remotely.
The SCU is a hot pluggable unit optimal for use in both embedded or stand-alone
applications. It provides remote monitoring, configuration, status information and
control of the DC power plant's voltage, current and alarm levels.
The SCU is a control unit designed for global use, and it withstands high telecom
standards, and provides great reliability and availability.
In order to obtain detailed and extensive monitoring and control of auxiliary
equipment on site, the power plant can be upgraded from a SCU to a ACU( Advanced
Control Unit) by means of a simple swap of the hot pluggable SCU and ACU units.
Minimized installation time-as a
result of easily configurable file
upload/download
High quality failure information-due
to intelligent alarm setup through
using PLC
True hot plug installation of
controller unit-thanks to simplified
communication cable connection
installation to a separate connection
board
Quick failure analysis-owing to
storage of the 200 latest alarms
Extend battery life-for advanced
battery management
1
Benefits
Introduction
1
PLC = Programmable Logic Controller
M501D
Controller, SCU 2 2U
Standard Control Unit

2. DC Power for
Business-Critical Continuity
Operation Indicator
Protection Indicator
Alarm Indicator
LCD Display
Function Keys
ABBREVIATIONS
PSTN Public Switched Telephone
Network, an ordinary telephone
line
EXMG EnergyMaster exchange
Manager, Windows based
software for monitoring of
Emerson Network Power DC
equipment.
EMAS EnergyMaster Management
Application Software, Unix
based software for monitoring
of Emerson Network Power DC
equipment.
PSMS Power Supply and environment
Monitoring System
SCU Standard Control Unit
PSU Power Supply Unit (AC/DC
converter/rectifier)
LC Local Computer, Used for
additional alarms in extension
cabinets
TM
TM
System Layout
M501D
Technical Specifications, SCU
Emerson Network Power and the Emerson
Network Power logo are trademarks and
service marks of Emerson Electric Co.
2005 Emerson Electric Co.
2005.8
Emerson Network Power.
The global leader in enabling
business-critical continuity.
SE-141 82 Stockholm, Sweden
Phone: +46-8-721-6000
Fax: +46-8-721-7177
www.emersonenergy.com
Emerson Network Power
Energy Systems AB
1122 F Street, Lorain, OH 44052
Phone: +440-246-6999
Fax: +440-246-4876
www.emersonnetworkpower.com/energysystems/
Emerson Network Power
Energy Systems, North America
AC Power Systems Embedded Power Outside Plant
Connectivity Inbound Power Precision Cooling
DC Power Systems Integrated Cabinet Solutions Site Monitoring and Services
No. 1 Kefa Rd., Science & Industry Park
Nanshan District 518057, Shenzhen, China
Phone: +86-755-8601-0808
www.emersonnetworkpower.com.cn
Emerson Network Power
Co Ltd., China
Fax: +86-755-8601-0909
Mechanical Data
Dimensions (H W D) 87.9 85.3 287mm/3.5 3.4 11.3inches
Standard installation methods Hot pluggable in stand-alone or embedded power plants
Weight <0.8kg/1.76Ibs
Communication Interfaces and Inputs/Outputs
Display: LCD with 4 x 16 characters
Language: English, Spanish, Portuguese, German, Italian, French
External Communication: RS232 Available though modem (HW option) or cable (max 15m/50 feet)
8 digital inputs Alarms/events
1 analog Input DC system voltage
2 analog Input Ambient and battery temperature
3 analog Inputs System current
8 relay outputs 2 A, max 60 W
2 low voltage disconnect Mono & bistable contactor
Protocol: EEM, RSOC, SOC-TPE
Inputs:
Outputs:
Examples of alarms
DC power plant alarms AC mains failure, Rectifier failure, DC/DC converter failure, High voltagee
shut-down, Fan failure, Thermal derating (of rectifier output due to high
temperature)
Ordering information and dimensions
Description Product Name Product code
Controller(SCU), 2 2U M501D 02311408 (BMP 903 051/1)
General
Power supply 19 to 60 VDC
Power consumption 5W
Operating temperature range -40 C to + 75 C/-40 F to + 158 F
Display readable temperature range -10 C to + 50 C / 14 F to + 122 F
Relative humidity 0 to 95%
EMC EN 300 386:2001 class B, FCC part 15 class B
Safety IEC 60950, EN 60950, UL 60950
Approvals CE, UL and NEBS level 3
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