Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Guide That Contains This Content
[+] Expand All
[-] Collapse All

    Installing an SFP Transceiver in an LN1000 RTM

    You can install up to eight SFP transceivers in the LN1000 rear transition module (RTM). The SFP transceivers are hot—removable and hot-insertable. You can remove and replace them without powering off the LN1000 router or disrupting router functions.

    Warning: Do not look directly into transceivers or into the ends of fiber-optic cables connected to a transceiver. Fiber-optic transceivers emit laser light that can damage your eyes.


    When handling fiber-optic transceivers and fiber-optic cable, observe the following precautions:

    • Do not leave a fiber-optic transceiver uncovered except when inserting or removing cable. The safety cap keeps the port clean and prevents accidental exposure to laser light.
    • Do not bend fiber-optic cable beyond its minimum bend radius. An arc smaller than a few inches in diameter can damage the cable and cause problems that are difficult to diagnose.
    • Do not let fiber-optic cable hang free from the connector. Do not allow fastened loops of cable to dangle, which stresses the cable at the fastening point.

    Figure 1: Small Form-Factor Pluggable (SFP)

    Small Form-Factor Pluggable (SFP)

    To install an SFP transceiver in the LN1000 RTM:

    1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
    2. Verify that a rubber safety cap covers the SFP transceiver, installing one if necessary.
    3. Orient the SFP over the port in the RTM so that the connector end will enter the slot first and the SFP connector faces the appropriate direction:
    4. Slide the SFP into the slot. If there is resistance, remove the SFP and flip it so that the connector faces the other direction.
    5. Remove the rubber safety cap from the transceiver and the end of the cable, and insert the cable into the transceiver.
    6. Arrange the cable in the cable management system to prevent the cable from dislodging or developing stress points. Secure the cable so that it is not supporting its own weight as it hangs to the floor. Place excess cable out of the way in a neatly coiled loop in the cable management system. Placing fasteners on the loop helps to maintain its shape.
    7. Verify that the SFP is installed by entering the CLI show chassis hardware detail command. Output will display as follows:
      root@spencer# run show chassis hardware
      Hardware inventory:
      Item             Version  Part number  Serial number     Description
      Chassis                                BF1809AG0055      LN1000-v
      Routing Engine   REV 06   710-027379   DY7841            LN1000-V
       FPC 0                                                    FPC
       PIC 0                                                  8x GE Base PIC
          Xcvr 0       REV 01   740-026948   UFA03J9                 SFP-T
          Xcvr 1       REV 01   740-026948   UFA03L0                 SFP-T
          Xcvr 2       REV 01   740-027085   UFA03UW                SFP-T
          Xcvr 3       REV 01   740-011782   PB82D10                SFP-SX
          Xcvr 4       REV 01   740-011782   PB82D13                SFP-SX
          Xcvr 5       REV 01   740-011613   AM0819S9RPK        SFP-SX
          Xcvr 6       REV 01   740-011613   AM0821SA1UL        SFP-SX
          Xcvr 7       REV 01   740-011613   AM0819S9RPC        SFP-SX
      Power Supply 0

    Published: 2015-04-07