Harmonic MAXLink HOA 7100 Series Product Manual
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Contents
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Installing the HOA 7100 Optical Amplifier3–8 Copyright © 2004 Harmonic Inc.3.7.2 Connecting DC PowerThe DC-powered HOA 7100 has two -48 VDC input connectors that requireinput voltage from -36 to -72 VDC. The DC input connectors are located on therear panel, as shown in Section 3.4 Rear Panel Diagrams on page 3-3.The two power plugs allow you to provide redundant (backup) power. If youprovide redundant power, the HOA 7100 continues to operate when theprimary power source fails. There is no difference between the two DC inputconnectors. Connect either one to the primary power source and the other tothe (optional) backup power source.To connect DC power:1. Connect the ground contact to ground. This is important for your safety.The ground contact is located on the rear panel, as shown in Section3.4 Rear Panel Diagrams on page 3-3.2. Attach a DC power terminal block to the rear panel of the HOA 7100 usinga small flat-bladed screwdriver.3. With the power source off, connect two 18 to 12 gauge power wires fromthe power source to the DC terminal block.4. Turn on the power source. The HOA 7100 boots up. It takes about 90seconds for all systems to operate.5. If you are providing redundant power, repeat steps 2 and 3 to connect thebackup power source to the second power terminal block.3.8 Connecting the Optical Fiber CablesThe HOA 7100 has two optical connectors, one input and one output, whichare located on the fiber tray, as shown in Figure 3-2 on page 3-3. A label in thetray indicates which is input and which is output.DANGER: Invisible Laser Radiation. AVOID EXPOSURE TO BEAM.Never operate unit with a broken fiber or with a fiber connectordisconnected.To connect the optical fiber cables to the HOA 7100:1. Unscrew the locking screw on the fiber tray. The fiber tray and the lockingscrew are located on the rear panel of the HOA 7100, as shown in Section3.4 Rear Panel Diagrams on page 3-3.2. Gently pull the handle to open the fiber tray and reveal the opticalconnector adapters inside. You can rotate the fiber tray downward foreasier access. Pressing on the fiber tray may cause damage.3. Verify that the type of connector on the fiber cable matches that of theHOA 7100: SC/APC.4. Verify that the fiber cable connector has been cleaned properly. If the fibercable connector needs to be cleaned, follow the cleaning procedureoutlined in Section 6.1.1 Cleaning Patch Cord or Pigtail Fiber OpticalConnectors on page 6-2. |
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