DCPower Source Requirements
ADVA Optical Networking recommends that you install the PDU on the
top of a rack. The PDU must provide power at nominal –48 VDC to each
shelf in the rack.
This document does not include PDU installation instructions. See the
PDU manufacturer's instructions as needed.
ELECTRIC VOLTAGEWARNING
The DC-powered shelf is not intended to directly connect to a centralized
DC-power system. The equipment must be switched on or off using
appropriately rated double-pole circuit breakers or single-pole fuses,
which have to be implemented in the building wiring.
l If full redundancy is required, provide two separate power sources for each shelf.
These power sources must be independent, and a separate circuit breaker at the
power distribution point must control them. They must comply with LVD 2014/35/EC.
One power source supplies power A, the primary power supply, and the other supplies
power B, the backup power supply.
l You must use the listed double-pole circuit breakers or single pole fuses to switch
equipment on or off. Implement this equipment in the building wiring between the shelf
PSM input terminals and the DC power source.
l Each shelf PSM must have its own circuit breaker that is IEC/EN 60898 compliant.
l The circuit breakers are considered the disconnect device and should be easily
accessible all the time.
l The circuit must be protected by a dedicated two-pole circuit breaker. The size of the
circuit breaker should be according to the PSM input rating.
l You must reliably connect the rack and DC PDU to a protective ground.
l For operation in USA and Canada only:
o
A readily accessible disconnecting device must be incorporated in the building's
installation between the shelf PSM input terminals and the DC power source.
o
The HD shelves are not intended to directly connect to metallic tip and ring outside-
plant conductors.
o
The DC-powered shelves use an isolated DC return (DC-I) design. The DC battery
return terminal must not be connected to the chassis or frame ground.
o
Site electrical wiring must include a protective ground connection to the –48 VDC
power source in accordance with national and local electrical codes.
l Power
l PSM-DC
l PSM-DC4
l General Electrical Safety Guidelines and Warnings
l DC Power Electrical Safety Guidelines and Warnings
l In Case of Electrical Accident
l DC Power Cable Specifications
205 FSP 3000R7 High-Density Subshelf Guide - R17.2 - Issue:B
To Next Page
Loading...
