Note:
RHS and LHS apply to modules located in even number channel positions. Where the
input module is being installed in an odd number channel position these locations must be
reversed.
When wiring to the input module connector, ensure that no stray strands of wire exist
between the two intrinsically safe (I.S.) outputs. The use of bootlace ferrules is
recommended. To comply with the certification of the module, ensure there is always at
least 50mm between exposed non-intrinsically safe module outputs.
The connection between the system I.S. earth and the control unit I.S. earth must be made using
at least one conductor with a minimum of 4mm
2
copper. Further guidance on the correct
installation of I.S. systems is provided by EN60079-14:1997 (which replaces BS5345, parts 1, 3-
8).
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