37
INM4500-2
Mar 2009
6.6 General
modules
These are general purpose modules that have applications associated with the MTL4500 range of
modules.
6.6.1 MTL4599 - Dummy Isolator
The primary function of the MTL4599, which can be used with all other MTL4500 Series units, is to
provide termination and earthing facilities for unused cable cores from hazardous areas.
6.6.2 MTL4599N - General purpose feedthrough module
The feed–through termination module allows non–IS connections to the MTL4500 backplanes. The
wires from the fi eld are connected using screw terminals. Six terminals are provided for each contact
of the multiway connector on the backplane. The terminals and cables conform to IS regulations so
that non–IS and IS signals can be mixed on the same backplane.
Note: Must not be used with signals >50V or >0.25A
Hazardous area
Safe area
1 2 3 4 5 6
7 8 9 10 1112
13 14
Unused field cores
Unused safe-area cores
Safe area
7 8 9 10 1112
13 14
7 8 9 10 1112