Chapter 4: Power Connectivity Planning
Allot SG-9100 Hardware Guide
4-2
Electrical Grounding Requirements
The server must be grounded properly for proper operation and safety. In the United
States, you must install the equipment in accordance with NFPA 70, 1999 Edition
(National Electric Code), Article 250, as well as any local and regional building codes.
In Canada, you must install the equipment in accordance with Canadian Standards
Association, CSA C22.1, Canadian Electrical Code. In all other countries, you must
install the equipment in accordance with any regional or national electrical wiring
codes, such as the International Electro technical Commission (IEC) Code 364, parts 1
through 7. Furthermore, you must be sure 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 ground-leakage currents associated with multiple servers connected
to the same power source, Allot recommends the use of a PDU that is either permanently
wired to the building’s branch circuit or includes a 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. Using common power outlet strips for the server
is not recommended.
Cable and Cord Specifications
AC Power Cord Specifications
Allot provides a set of 2 x IEC-320 C13 to C14 Power Cord Black 2.5m 10A
Figure 4-1: IEC-320 C13 to C14 Power Cord
All power cords used must meet the following specifications:
Use copper conductors only.
The cord must have the appropriate cross-sectional dimension for the current
rating.
