Sun Microsystems Netra ft 1800, Installation Manual

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C H A P T E R
3
Electrical Supply Installation
This chapter provides information about the Netra ft 1800 system switches and the
installation of the electrical supply. See the Netra ft 1800 Hardware Reference Manual
for full details of the electrical supply hardware.
The Netra ft 1800 has six power input feed pairs, three for each side, which plug in
to the back of the system. These must be assembled by the user, as described in
“Connecting the Power Leads” on page 51.
Note –
This equipment is only intended for installation in a Restricted Access
Location as defined by UL1950, 3rd Edition, and EN60950: 1992 / A11: 1997.
Note –
In NORWAY, this requirement does not apply to permanently connected
equipment or pluggable equipment type B, installed in areas where equipotential
bonding has been applied, e.g. a telecommunications Central Office.
System Switch
The Netra ft 1800 in fault tolerant mode consists of two sides: processors and
associated modules which function and are powered as separate systems. The
system switches of the Netra ft 1800 function as standby devices for their respective
sides, enabling and disabling the power supply units (PSU) outputs. The system
switches are push, momentary switches. They are located on the CAF module on
each side of the system.
The system does not contain any integral circuit breakers. The only means of
isolating the system from power is by means of external circuit breakers, to be
provided by the user.