User manual

WARNING
USING AUTOTRANSFORMERS. If the mainframe is to be
energized via an autotransformer (for voltage reduction) make
sure the common terminal is connected to neutral (that is, the
grounded side of the main’s supply).
CAPACITOR VOLTAGES. Capacitors inside the mainframe may
remain charged even when the mainframe has been
disconnected from its source of supply.
USE PROPER FUSES. For continued protection against fire
hazard, replace the line fuses only with fuses of the same
current rating and type (such as normal blow, time delay, and
so on). Do not use repaired fuses or short-circuited
fuseholders.
SHOCK HAZARD. Only service-trained personnel who are
aware of the hazards involved should install, remove, or
configure the multiplexer. Before you remove any installed
module, disconnect AC power from the mainframe and from
other modules that may be connected to the multiplexer.
CHANNEL WIRING INSULATION. All channels that have a
common connection must be insulated so that the user is
protected from electrical shock. This means wiring for all
channels must be insulated as though each channel carries the
voltage of the highest voltage channel.
CAUTION
MAXIMUM INPUTS. The maximum voltage that can be applied to any
terminal is 220Vdc/250Vrms. The maximum current that can be applied to
any terminal is 1 A at
<30Vdc/Vrms, or 0.3 A at <220Vdc/250Vrms. The
maximum power that can be applied to any terminal is 40 VA.
STATIC ELECTRICITY. Static electricity is a major cause of
component failure. To prevent damage to the electrical components in the
multiplexer, observe anti-static techniques whenever working on the device.
12 General Information Agilent E1460A Service Manual