User guide

Preface

EMC Precautions

If passive copper cables are connected, the cable must not have a connection to a common ground/earth

point.

Rack System Precautions

The following safety requirements must be considered when the unit is mounted in a rack.

• The rack design should incorporate stabilizing features suitable to prevent the rack from tipping or

being pushed over during installation or in normal use.

• When loading a rack with the units, fill the rack from the bottom up and empty from the top down.

• System must be operated with low pressure rear exhaust installation (Back pressure created by rack

doors and obstacles not to exceed 5 pascals [0.5mm Water gauge])

• The rack design should take into consideration the maximum operating ambient temperature for the

unit, which is 40°C when two Power Supply modules are fitted.

• The rack should have a safe electrical distribution system. It must provide overcurrent protection for

the unit and must not be overloaded by the total number of units installed in the rack. Consideration

of the units nameplate rating should be used when addressing these concerns.

• The electrical distribution system must provide a reliable earth for each unit and the rack.

• Each power supply in each unit has an earth leakage current of <1.5mA maximum at 60Hz, 264 V

AC per PSU. The design of the electrical distribution system must take into consideration the total

earth leakage current from all the power supplies in all the units. The rack will require labelling with

"HIGH LEAKAGE CURRENT. Earth connection essential before connecting supply".

• The rack when configured with the units must meet the safety requirements of UL 60950 and IEC

60950.

ESD Precautions

Caution It is recommended that you fit and check a suitable anti-static wrist or ankle strap and observe all

conventional ESD precautions when handling FC60SS-1220 plug-in modules and components. Avoid contact

with backplane components and module connectors, etc.

Recycling of Waste Electrical and

Electronic Equipment (WEEE)

At the end of the products life, all scrap/ waste electrical and electronic equipment should be recycled in

accordance with National regulations applicable to the handling of hazardous/ toxic electrical and

electronic waste materials.