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

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	page 15
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