User guide

8 21 068: MP E G-3 2 70 & 4 290 Use r Guide
© 201 3 Wohle r Te chno lo g ie s, Inc. A ll ri g ht s re ser v ed.
12
Ch apt e r 1 Ins tal la ti on
Rea r Pan e l Co n nec to rs
• Cooling Fan: Please do not obstruct the airflow from these two
quiet fans.
• Power (DC): To provide power to the unit, attach the supplied 100
to 240VAC power supply, which will supply 24VDC to this
connector.
Im p orta nt :
A signal input is defined to be a dry contact closure to ground for the
General Purpose Inputs as well as for the Tally LEDs. Do not
apply any voltages to these inputs.