Grounding; Airflow Requirements - HP 16-port SCS Installation Instructions Manual

Grounding

For proper operation and safety, the SCS must be properly grounded. In the United States, install the equipment in
accordance with NFPA 70 (National Electric Code) Article 250, as well as any local and regional building codes. In
Canada, the equipment should be installed in accordance with Canadian Standards Association, CSA C22.1, and
Canadian Electrical Code. In all other countries, the installation should follow any regional or national electrical
wiring codes such as the International Electrotechnical Commission (IEC) 364 parts 1 through 7.
Furthermore, you must ensure that all power distribution devices used in the installation—such as branch wiring and
receptacles—are Listed or Certified grounding type devices.
Because of the high grounding-leakage currents associated with multiple SCS connected to the same power source,
HP recommends the use of a power distribution unit (PDU) that is either permanently wired to the building's branch
circuit or is provided with non-detachable cord that is wired to an industrial style plug. NEMA locking-style plugs or
those complying with IEC 60309 are considered suitable for this purpose. HP does not recommend using common
power outlets strips for this equipment.

Airflow requirements

HP 16- and 48-port Serial Console Servers draw cool air in through the front door and expel warm air out through
the rear. Therefore, the front door of the rack must be adequately ventilated to allow ambient room air to enter the
cabinet, and the rear door must be adequately ventilated to allow warm air to escape from the cabinet. Do not block
the ventilation apertures.
CAUTION: If a third-party rack is used, observe the following minimum requirements to ensure adequate
airflow and prevent damage to the equipment.
Front: The rack door should have 774.19 sq cm (120 sq in) of holes evenly distributed from top to bottom to permit
adequate airflow.
Side: The clearance between the installed module and the side panels of the rack should be a minimum of 6.98 cm
(2.75 in).
Rear: The clearance between the back of the rack and the wall should be a minimum of 72.2 cm (30 in). The equipment
should be operating without a rear door
Blanking panels
If all of the vertical space in the rack is not filled by components, the gaps that are left will cause a change in airflow
through the rack and across the components. These gaps need to be covered with blanking panels
Important safety information 7