2.6 Aligning the Fiber Optic Link

2.6Aligning the Fiber Optic Link

The final step in installing the 7870 Interfacility Link is re-adjusting the Receiver Gain Control for unity gain.

To set the unity gain (standard version)

1.Set the Signal Generator to -15 dBm. Alternatively measure the operational input level.

2.Set up the system as shown in Figure 12 Fiber Optic Alignment Setup

3.Adjust the Receiver Gain Control for -15 dBm reading on the power meter.

Figure 12 Fiber Optic Alignment Setup

7870 Interfacility Link Installation and User’s Guide

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Foxconn 7870 manual Aligning the Fiber Optic Link, Fiber Optic Alignment Setup