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Supplement AC/DC Adapter (AD) Plug for DC Power Supply Connection Note Ignore this supplement if the unit is AC-powered. Certain units are equipped with a wide-range AC/DC power supply. These units are equipped with a standard AC-type 3-prong power input connector located on the unit rear panel. This power input connector can be used for both AC and DC voltage inputs. For DC operation, a compatible straight or 90-degree AC/DC Adapter (AD) plug for attaching to your DC power supply cable is supplied with your RAD product (see Figure 1 and Figure 2). Figure 1. Straight AD Plug Connect the wires of your DC power supply cable to the AD plug, according to the voltage polarity and assembly instructions provided on page 2. Figure 2. 90-Degree AD Plug Caution Prepare all connections to the AD plug before inserting it into the unit’s power connector. Publication No. SUP-930-07/08 The Access Company AC/DC Adapter (AD) Plug ³ To prepare the AD plug and connect it to the DC power supply cable: 1. Loosen the cover screw on the bottom of the AD plug to open it (see Figure 3). 2. Run your DC power supply cable through the removable cable guard and through the open cable clamp. 3. Place each DC wire lead into the appropriate AD plug wire terminal according to the voltage polarity mapping shown. Afterwards, tighten the terminal screws closely. 4. Fit the cable guard in its slot and then close the clamp over the cable. Tighten the clamp screws to secure the cable. 5. Reassemble the two halves of the AD plug and tighten the cover screw. Figure 3. AD Plug Details 6. Connect the assembled power supply cable to the unit. Note: You have to flip over the non-90-degree AD plug type by 180 degrees to insert it into the unit. After inserting it, verify that the blue (negative) wire is connected to the POWER and the brown (positive) wire is connected to the RETURN. • Reversing the wire voltage polarity will not cause damage to the unit, but the internal protection fuse will not function. Warning • Always connect a ground wire to the AD plug’s chassis (frame) ground terminal. Connecting the unit without a protective ground, or interrupting the grounding (for example, by using an extension power cord without a grounding conductor) can damage the unit or the equipment connected to it! • The AD adapter is not intended for field wiring. 2