Chapter 3 Site Planning and Preparation
Installation and Commissioning Manual
69
F
S
P
3000R
7 R
11
.1 8000
0015930
Issue
B
, ©
2012
ADVA AG Optical Netw
orking
ADVA Conf
idential
Please refer to the
Module and System Specification
for detailed specifications
on the PSU types.
The AC power supply should fulfill the following requirements:
•
To achieve power redundancy,
each PSU of the shelf must have its own AC
receptacle
.
Note also that the reliability can be increased by connecting the
receptacles to different power phases.
•
The AC receptacles should be a three-conductor grounding type and should
be on separate circuits.
•
The AC receptacles should be easily accessible and should be located
within a reasonable distance, without requiring an extension cord.
•
A readily accessible fuse or circuit breaker with suitable electric ratings
according to local safety standards must be incorporated in each circuit.
•
An on-off switch can be located between the AC receptacle and the PSU of
the shelf. Instead of a dedicated on-off switch, the IEC 60320 appliance
coupler may be considered the line power disconnect.
•
The AC wall attachment plug of the power cable should be a three-conduc-
tor grounding type and must be approved for the use in the specific region
or country.
•
Site wiring must include a ground connection to the AC power source.
Power Cable Requirements
To connect the PSUs of a 7HU shelf, a 40CSM-OJG/3HU Shelf or a 1HU shelf
to a DC power source or to the line power, two detachable DC or AC power
cables are necessary, provided redundancy is required. One cord is used for
Power A (primary power supply), and the other for Power B (backup power sup-
ply). Two power cables of the same length and with the same connectors consti-
tute a cord set that belongs to a specific shelf.
A protective ground conductor is required to ground a shelf.