Connecting a Cable to a 25GE Optical Port

You can connect an optical or SFP+ cable to a 25GE optical port. You need to determine the type of cable to be connected based on site requirements.

1. Wear an ESD wrist strap. For details, see ESD Protection.
2. Check the model of the new network cable.
3. Number the new cable.
   • The new cable must have the same number as the old one.
   • Use the same type of labels for optical cables. Record the name and number of the local device to be connected on one side of a label and those of the peer device on the other side. Attach a label 2 cm (0.79 in.) away from the end of a network cable.

4. Lay out the new cable in the same way as the old one.

   Lay out the new cable in the same way as the old one. Note the following points:

   • Lay out optical cables or SFP+ cables in the rack based on installation regulations. You are advised to arrange cables in original mode. Ensure that cables are routed neatly and intact.
   • Separate optical cables or SFP+ cables from power cables and signal cables when laying out the cables.
   • Bend an optical cable or SFP+ cable with a bending radius of at least 4 cm (1.57 in.) to prevent damage to core wires. Ensure that the cable is intact. Ensure that optical cables or SFP+ cables are laid out for easy maintenance and capacity expansion.
   • Bind optical cables with cable ties. Ensure that optical cables are bound closely, neatly, and straight, and cable ties are in even distance and fastened properly.

5. Connect the cable to a 25GE port.

   When you use an optical cable:

   1. Remove the old optical cable from the server.

      Remove the old optical cable from the server.

   2. Connect the new optical cable.
      • Connect the new optical cable to the same port as the old one.
      • Connect the optical cables to the optical module securely.
      1. Insert the optical module into the optical port. See (1) in Figure 5-12.
      2. Close the latch on the optical module to secure it. See (2) in Figure 5-12.
      3. Insert the optical cable into the optical module. See (3) in Figure 5-12.
      Figure 5-12 Connecting an optical cable
      

   When you use an SFP+ cable:

   1. Remove the old SFP+ cable.

      Gently push the cable connector inwards and pull the latch out to remove the SFP+ cable. See Figure 5-13.

      Do not directly pull out the latch.

      Figure 5-13 Removing an SFP+ cable
      
   2. Connect the new SFP+ cable.

      Remove the dust-proof cap on the port, and insert the cable connector into the port. See Figure 5-14.

      When you hear a "click" sound and the cable cannot be pulled out, the connector is securely connected.

      Figure 5-14 Connecting an SFP+ cable
      

6. Check that the new cable is properly connected.

   Power on the server, and ping the IP address of the peer device. If the peer device cannot be pinged, check whether the cable is intact or the connectors are securely connected.

7. Bind the new optical cable.

   Bind the new network cable in the same way as the existing network cables. You can also remove all cable ties and bind all of the optical cables again if necessary.