Yokogawa / Subunit DS600 / DS600 
DS600: approximately 422 (W)3176 (H)3100 (D) mm; approximately 3.5 kg

A subunit acts as an interface for connecting
input modules to the main unit of the
DR230 expandable model. There are two
types of subunits, the DS400 which permits
connection of up to four input and output
modules, and the DS600 which permits connection
of up to six input and output modules.
Normally, when a subunit is connected, it
will be at a separate location from the main
unit.
(When a subunit DS600 is mounted on the
back of a main unit, a dedicated cable is
required between them.)