Alpha Technologies Cordex CXPS-D 48-2500_5000A - Manual (Page 11)

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2. Introduction
2.1 Scope of the Manual
This instruction manual explains the features, installation, interconnection and startup of both the Alpha CXPS-D
48-2000/4000 Cordex system and the Alpha CXPS-D 48-2500/5000 Cordex system. Images contained in this
document are for illustrative purposes only and may not exactly match your installation.
In addition to this manual, the following documentation is part of the documentation package that ships with the
Alpha CXPS:
• Cordex Controller (CXC) v2.05 Software manual: part number 0350046-J0
• Alpha Modular Switched Mode Rectifier System: part number 9400000-J0
Product Overview
Alpha power systems provide a distributed power solution for large communications applications— central of-
fices, Mobile Switching Centers, Data Center and Cable Headend facilities (DPCO). The main source of power
for the power system is commercial AC power, which is converted to DC by the modular switched mode rectifi-
ers. It is a fully automatic system, which provides float and equalize capability.
These systems have many benefits:
• Designed to be installed close to the connected equipment and to provide a high quantity of small capacity
circuits, eliminating BDFBs (Battery Distribution Feeder Bay) and their cabling and installation costs.
• Can also be equipped with a small number of high capacity circuits to feed remote BDFBs to increase the
number of distribution points
• High efficiency modular rectifiers reduce operating costs
• Compact front access design reduces floor space footprint (26" x 20")
• Low voltage load or battery disconnect options
• Cordex system controller for configuration, monitoring and control of the entire DC power system from its
central panel and graphics display. Other controller features include: event data storage, alarm generation,
group rectifier configuration and remote access.
Each bay combines rectifiers, battery termination and distribution. Figure 1 shows a single bay 2500 A system.
A dual-bay kit with inter-bay copper buses and cabling, links two bays to double capacity, breakers and termina-
tion.
Rectifier Shelves
Up to five rectifier shelves are wired out to the AC source provided by the customer. Each shelf can accommo-
date six Cordex 4 kW or two Cordex 12 kW rectifier modules.
Distribution Modules
A Cordex system controller is mounted in the door of a distribution module in the primary bay. An optional shunt
multiplexer (MUX) panel (with CAN interface) can be used to monitor up to 16 channels (e.g. shunts). TPL fuse
and AM breaker options are available.
2.2 Options
The system offers several advanced features with add-on options. These options can be included by the cus-
tomer at time of ordering or can be added in the future; e.g. additional Cordex rectifiers.
2.3 Additional Alpha Products
To complement your power system you may require additional products that can be ordered separately; such as:
Fusible Battery Disconnect Panel – provides a fusible battery disconnect contactor with a control circuit to enable
remote low voltage disconnect (LVD) and reset-able emergency power off (EPO). There are status indicators for
the auto discotnnect, manual disconnect and remote disconnect features.