CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 16 May 2006 9
2 Product Description
CPS6000 System Overview
CPS6000 power systems are comprised of shelves, rectifiers, ringer chassis, ringers, and
distribution modules. Several types of distribution modules are available. The Bulk Output
Module provides connection to an external distribution without consuming a shelf power slot.
The CPS6000 is available as single-shelf systems and multiple-shelf systems with both 19-
inch and 23-inch shelves.
Single Shelf Systems
• With Distribution Module: all components contained in single shelf.
• With Bulk Output Module: uses external distribution, accommodates all other
components within the shelf.
Multi-Shelf Systems
• With Bulk Output Module: uses external distribution, accommodates all other
components within the shelves.
AC power is supplied to the rectifiers which produce regulated -48V dc output voltage. This
voltage is used to power all other system components including ringers, the system controller
and the LVD boards. Batteries are connected to distribution, internal or external. Some
Distribution Modules provide battery circuit breakers. Single-Slot and Double-Slot
Distribution Module options include GMT-style fuses and bullet-style circuit breakers.
Ringer Chassis may be installed in Power Slots. Each Ringer Chassis supports one ringing
output in either non-redundant (simplex) or 1 + 1 redundant (duplex) operation. Ringer
distribution is direct from the Ringer Chassis. Ringers power ringing signaling outputs and
are powered by -48Vdc.
The batteries are monitored by the system controller to ensure their peak performance and
longevity against thermal issues. They are monitored via the Voltage/Thermal Probes (VT-
Probes), which are connected from the Distribution Module to the battery.
The Remote Voltage Monitor (RVM) module may be used with the VT-Probes in making
voltage measurements for battery string-voltage imbalance detection. Additional VT-Probes
may used by connecting them in a daisy-chain fashion.
The system controller monitors all system parameters and performs battery management
functions. It communicates with all devices using the RS-485 bus. The RVM and VT-Probe
communicate with the controller using the 1-Wire® from Maxim Integrated Products, Inc.
The LVBD contactor is used to connect the battery strings to the main power bus. Under ac
fail conditions, the battery current will be flowing through the contactor to the output
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