Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - ERX HARDWARE GUIDE REV 26-9-2010 Hardware Manual page 103

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Figure 41: Example of SFP
CAUTION: Be sure to position the SFP correctly before you install it.
Hold the SFP so that:
3.
The connection circuitry is adjacent to the TX and RX markings on the module's
faceplate.
The front will be visible when you install the SFP.
For the correct orientation, see Figure 42 on page 87.
Figure 42: Installing an SFP on a GE I/O Module
Insert the SFP into the I/O module until it clicks into place.
4.
If the SFP does not slide smoothly into the I/O module, make sure that the orientation
of the SFP is correct.
Gently pull the SFP to confirm that it is inserted correctly.
5.
If the SFP comes out of the slot when you pull it, repeat Step 4.
Remove the dust cover that protects the ports.
6.
Connect the new cables to the SFP.
7.
Chapter 8: Maintaining ERX Routers
87