INSTRUMENT
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CONNECTOR)
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IEEE LEAD
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EQUIPMENT
WITH IEEE
CONNECTOR
INSTRUMENT
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EQUIPMENT
WITH IEC
CONNECTOR
(IEE
CONNECTOR)
'
IEEE to IEC
ADAPTER
46883-408K
C0032
Fig.
2-3
IEEE to IEC conversion
Interface bus connection
The cables for the interface bus use special
male-female connectors
at both ends.
This
allows
several
connectors to be stacked one on top
of
another permitting several cables to be
connected to the same source and secured
by a
lockscrew mechanism.
Too
large a stack,
however,
may form a
cantilevered
structure which might cause damage and should be avoided.
The piggyback arrangement permits star
or linear interconnection
between
the
devices with the
restriction that the total cable length
for
the
system must be:-
(1)
No greater
than
20 m
(65
ft).
(2)
No greater than 2 m
(6
ft) times the total number of devices (including the
controller) connected to the bus.
RACK MOUNTING
The instrument, which
is normally supplied for bench mounting, may
be
mounted in a
standard 19 inch rack (see 'Optional accessories'). There are two slide rack mounting kits
to
accommodate different depths
of cabinet. These kits include full fitting
instructions.
A rack
mounting kit without slides is also available which contains front panel mounting brackets
only.
BATTERY REPLACEMENT
The lithium battery has
an estimated life of
5
years, but it is recommended that it should be
replaced every
two
years. The clock will continue to run for approximately
30
seconds while the
replacement is made.
If a lithium battery is unobtainable an alkaline battery
can
be
used, but
will have
a shorter
life.
2-4
46882-074C
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