CHAPTER 3-Installation
Connecting Facility Power
DS2000-IFR Installation and Maintenance Guide
3-4
3.4 C
ONNECTING
F
ACILITY
P
OWER
The DS2000-IFR comes in either high or low voltage models. The unit does not have a power on/off switch
and is active when the power is connected. Always ensure that the ground connection is made prior to
connecting facility power to the DS2000-IFR. The ground provides a protective circuit connection to
ground in cases of transients and power surges. Connect the facility power to a DC or AC unit as described
in the following sections.
3.4.1 DC Power Connection and Applying Power
The DS2000-IFR provides a hardened DC power supply for industrial applications and/or hostile
environments. The power supply connector is located on the rear of the unit on the right hand side as shown
in Figure 3-1. Connect the DC power to the unit as follows.
1. Ensure that the facility DC power is shut off to the wires being connected to the DS2000-IFR.
2. Lift the protective cover from the Power input and loosen the screws on the Power input and the
Ground lug bolt beside the nonpolarized power inputs of the DS2000-IFR,asshowninFigure 3-
1.
Figure 3-1. Power and Ground Connections
3. Connect the facility ground connection and torque the ground lug to 32 inch lbs.
4. Connect the two facility DC wires to the nonpolarized power input points and tighten the screws to
ten inch lbs. Push the protective cover over the screw heads and route the wires through the
cutouts.
The facility DC wires should be 14 AWG and be terminated with a #6 ring lug.
5. At the facility DC power source apply power to the DS2000-IFR.
6. The System and Ethernet board LEDs, shown in Figure 1-3, will illuminate green, after
approximately 20 seconds.
NOTE: The power supply connections are nonpolarized meaning that positive and negative
connections are automatically adjusted internally.
ELECTRICAL WARNING: Verify that a proper ground connection is made from the ground
lug to facility ground prior to connecting power to the
DS2000-IFR. Failure to have a
proper ground path could cause serious injury or death to personnel in cases of power
surges.
S8
S16
Nonpolarized
Ground Inputs
Ground Lug
RS232
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