Installing the SH9HU, SH7HU, SH7HU-R and 1HU Equipment Shelves
172
Installation and Commissioning Manual
F
S
P
3000R
7 R
11
.1 8000
0015930
Issue
B
, ©
2012
ADVA AG Optical Netw
orking
ADVA Conf
idential
Connecting AC Power
AC Power Considerations
The AC powered shelves operate nominally at either 110 V/60 Hz or 230 V/50
Hz. The AC power supply units automatically detect the input voltage. No further
adjustment is necessary. The AC power supply unit is designed to work with
power systems having a grounded neutral conductor. For redundancy, the shelf
requires two power inputs (designated as Power A and Power B or Power 1 and
Power 2). One power input should be connected to Power A (primary power
supply) and the other one should be connected to Power B (backup power sup-
ply). If only one power source is used and that source fails, the shelves cease to
operate. To apply AC power to the FSP 3000R7 shelves, the appropriate power
cords must be connected from the line power, for example power source outlets,
to the PSUs located in the shelf. The Power A unit and the Power B unit must be
connected from the line power, for example AC power source outlets, to the
PSUs located in the shelf. To support power connections in a variety of coun-
tries, different AC power cords are provided by ADVA Optical Networking.
7HU shelf variants provide front power access. The 1HU Shelf Rear Power
Access (SH1HU-R) has the power connectors at the back panel.
The power plug (attachment plug) of the AC power cord serves as the main dis-
connection device. Therefore, the dedicated AC power outlet must remain
accessible so as to be readily operable for use.
Prerequisites for Connection
Verify or perform
the following prerequisites before proceeding with the con-
necting power procedure:
•
The site wiring systems must be installed in accordance with your national
and local electrical safety standards.
•
Site wiring must include a protective earth connection to the AC power
source.
•
Each supply circuit must have a regular earthed outlet and must be pro-
tected by a properly rated current limiting fuse or two-pole circuit breaker.
See the
Chapter 3: AC Power Source Requirements
•
Make sure that the PSU is the only appliance in the supply circuit.
•
Ensure that you use a separate AC power source outlet for each PSU of the
shelf. Connecting to independent power source outlets maintains power
redundancy.
•
Make sure that the dedicated power source outlets are located near enough
to the power supply units of the shelves. The supplied AC power cords are
approximately 2.5 m (8.203 ft.) long.
•
The power source outlets should be easily accessible.
P
S
Note
For operation in various countries, country specific AC power cords
can be delivered. For proper operation of the system use the
appropriate AC power cords. For more information, see the
Hardware
Description
,
Appendix A
and
Chapter 2
of this guide.