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

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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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Contents Copyright Interfacility Link Installation and User’s GuideMailsales@foxcom.com Table of Contents Figures Important Information Warranty and Repair PolicyGeneral Warranty Specific Product Warranty InstructionsLimitations of Liabilities ReturnsReporting Defects PrecautionsPersonal Safety Equipment SafetyImportant Information Introduction to the 7870 Interfacility Link Options Product Drawings Panel Descriptions Block DiagramsOption Label Options7870T Transmitter Front and Rear Panel Product DrawingsLED Name LED Function Opt Panel DescriptionsLED Name LED Function Laser 7870Transmitter Block Diagram Block DiagramsBlock Diagrams Typical Application of a 7870 Interfacility Link InstallationSetting up the Transmitter Connecting the Fiber Optic Cable Setting Up the Receiver Powering the IFL 7180M Chassis Rear View 1 7180M ChassisJumper Installation Tx and Rx only Connecting the Back Panel JumpersJumper Installation 2040 Switch in slots 2 Aligning the Fiber Optic Link Fiber Optic Alignment SetupDocument no -005-35-C5 RF Specifications Product SpecificationsPhysical Specifications Optical SpecificationsUnit dimensions Model Dimensions7870 Interfacility Link Pinouts 7870R Receiver Pinout 7180M Chassis Pinouts 7870 the J11 connector is inoperativePin No Function Name Slot No 7180M Alarm Connector J12 Pinouts3 7180M and Redundancy Switching 2 7180M Monitor Connector Pinout J13 Pin # Function NameProblem Possible Cause TroubleshootingMay still function without LED Description Manufacturer Appendix 1 Cleaning Fiber Optic ConnectionsWiping the connector with a Kim wiper Appendix 1.1 Cleaning Procedures for FC/APC ConnectorsAppendix 1.2.2 Compressed Air Method Appendix 1.2 Cleaning Procedure for FC/APC Bulkhead PortsAppendix 1.2.1 Swab Method Appendix 1.2 Cleaning Procedure for FC/APC Bulkhead Ports Appendix 2 Installing a Standalone Unit Document no -005-35-C5 Appendix 3 The 2380 Relay Adapter Appendix 2380 Dimensions and Front Panel LabelAppendix 3.1.2 Mounting the the 2380 Relay Adapter Appendix 3.1 Installing the 2380 Relay AdapterAppendix 3.1.1 Parts Required for Installing Mounting the Screws 2380 Dimensions Appendix 3.2 2380 Dimensions and Front Panel LabelSlot Number Appendix Adapter PinoutsPin Number Function 2380 Pin Number Pin # Function Name Slot NoAppendix 4 Pinout Charts and Diagrams Standard 7180M and 7180M with 2380 Relay Adapter Pinout 7180M and 2040 RF Switch Pinout Pinout of 7180M Jumper with 2040 RF Switch in slots 2 Pinout of 7180M jumper with 2040 RF switch in slot Pinout of 7180M jumper with 2040 RF switch in slot Page Document no -005-35-C5