Specifications

35
35
ES1948 SERIES - SWITCHING MODE
RECTIFIER
The PHD ES1948-48V/39.6A is a switched mode rectier
(SMR) module designed to provide up to 39.6A of output
current into a 48V nominal system. This rectier has been
designed especially to be used in conjunction with a battery to
provide an uninterruptable DC power system. The low noise
and high reliability make it ideally suited to telecommunications
applications. The rectiers are designed to slide and plug into a
single magazine-SR1948-9, designed for a 19” rack, which can
accommodate up to 9 rectiers and up to 32 rectiers can be
congured as a system using one control and supervisory unit
(MCSU2048).
The ES1948 Switching Mode Rectiers are highly compact,
highly efcient, fully featured switch mode rectiers which can
operate in a modular rack environment with overall control from
the control and supervisory unit MCSU2048. With overall control,
such features as active current sharing, accurate battery voltage
regulation, battery recharging current limit control, automatic
battery equalization and battery temperature compensation
are achieved.
The ES1948 rectier modules incorporate a microcontroller-
based control card which incorporates the control and supervisory
facilities of the SMR. The microcontroller enables digital
communications to the MCSU2048 as well as to the outside
world (via the MCSU2048), so that it is possible to examine the
operating parameters and, if necessary change them to suit a
particular situation, from a remote location, even a distant one if
a modem is used. This method of monitoring and control opens
up entirely new methods of routine and emergency maintenance
procedures.
INTERFACEBOARDANDOPTIONALACCESSORIES
MUIB: PHD’s MUIB board combined with MCSU, external
transducers and digital or analog I/O contacts to control and
monitor a 24V or 48V or 110V DC power system. It provides a
basic interface between the MCSU and the system environment.
MMIB (optional): PHD’s MMIB board is an add-on module for
the MCSU. It is used to monitor external AC power sources in
either single phase or three phase congurations
during operation.
BCM (optional): PHD’s BCM board is an add-on module for the
MCSU. It is used to monitor individual cells of a batteries during
either oat, equalize operation, or discharge. Each BCM board
is capable of monitoring up to 24 cells(BCM) or 96 cells(BCM2).
SMM (optional): PHD’s SMM board is an expansion of the
MCSU. It allows the user to monitor the status of equipment
that is external to PHD’s DC power system. It can also be
used to monitor a 3rd party DC power system. Using the same
communication link and winCSU2000 software, the SMM can
supervise numerous off-site systems from a central monitoring
station.
WinCSU2000: PHD’s WinCSU2000 software is an intuitive
program designed for the Windows 95,98 and NT environments.
Working through MCSU and interface boards, you can monitor
and control PHD’s DC power system either locally or remotely
through a modem.
MCSU NetAgent ǁ: PHD has integrated various communication
protocols over networking to enable the equipment’s real-time
remote monitoring and management via MCSU NetAgent Ѳ.
It is equipped with a UTP RJ45 plug for 10Base-T or 100M fast
Ethernet connecting through TCP/IP, UDP, HTTP, Telnet, SNTP,
PPP or SMTP protocol to LAN and WAN. It also has a RS232 port
to connect with an external modem to dial in via the PPP protocol
to access an internet connection.
FEATURES:
• Innovative single phase and three phase input stage with wide
input range (90-275VAC, 310-480VAC)
• Power factor > 0.99
• High efciency
• Microprocessor based
• Active or passive load sharing
• Rear “push in to plug in“ connection for AC, DC
and communications link
• Weight less than 1.9kg
• Exceptional power density (>18W/in3).
APPLICATIONS:
• Telephone Exchanges
• Cellular Phone/ Radio Base Stations
• Satellite Base Stations
• Microwave Links Remote Multiplexes
• Rural Telecomunications
• PABX’s
• Railway Switching Controls
• Transmission and ISDN
• Equipment
• Power Plants
• Airport, Hospital, Banks.
SWITCH MODE RECTIFIERS
1PHASE&3PHASE