IBM 867282X Maintenance Manual - Page 68
Dual input instructions, Disconnecting the DC Power Connection
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Dual input instructions Complete the following steps to connect dual - 48 V dc power inputs to the power supply terminals. Note: For instructions on how to connect a single input to the terminal block, refer to "Single input instructions" on page 58. 1. Pull down on the terminal cover to open it. 2. Connect the protective ground wire to the protective ground terminal located in the center of the terminal block. Note: The wires must be connected in the order described to ensure the proper operation of the - 48 V. Protective ground terminal Return terminal 0 V (+) Terminal block cover -48 V terminals (--) 3. Connect the first set of inputs to the A set of terminals as follows: a. Connect the return or 0 V wire to the A return (+) terminal on the terminal block. b. Connect the - 48 V (-) wire to the A (-) terminal on the terminal block. 4. Connect the first set of inputs to the B set of terminals as follows: a. Connect the return or 0 V wire to the B return (+) terminal on the terminal block. b. Connect the - 48 V (-) wire to the B (-) terminal on the terminal block. Note: Torque the wiring-terminal screws to 12 inch-pounds (1.4 newton-meters). 5. Close the terminal block cover. Disconnecting the DC Power Connection The information in this section replaces the instructions for turning off the server and disconnecting the power cable from the rear of the server in your xSeries documentation. Statement 19 CAUTION: 60 Hardware Maintenance Manual: xSeries 300