Replacing ACX500 Components

Replacing a Console Cable

1. Removing a Console Cable

2. Installing a Console Cable

Removing a Console Cable

1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
2. Press the tab on the connector, and pull the connector straight out of the CONSOLE port. Figure 1 shows the connector.
3. Disconnect the cable from the console.

Figure 1: Ethernet Cable Connectors

Installing a Console Cable

1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
2. Connect one end of the replacement cable into the CONSOLE port.
3. Plug the other end of the cable into the device's serial port.

Replacing a Management Ethernet Cable

1. Removing a Management Ethernet Cable

2. Installing a Management Ethernet Cable

Removing a Management Ethernet Cable

1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
2. Press the tab on the connector, and pull the connector straight out of the MGMT port. Figure 2 shows the connector.
3. Disconnect the cable from the network device.

Figure 2: Ethernet Cable Connectors

Installing a Management Ethernet Cable

1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
2. Plug one end of the replacement cable into the appropriate MGMT port.
3. Plug the other end of the cable into the network device.

Replacing a Fiber-Optic Cable

To replace a fiber-optic cable:

1. Disconnecting a Fiber-Optic Cable

2. Connecting a Fiber-Optic Cable

Disconnecting a Fiber-Optic Cable

ACX Series routers have field-replaceable unit (FRU) optical transceivers to which you can connect fiber-optic cables.

Before you begin disconnecting a fiber-optic cable from an optical transceiver installed in an ACX Series router, ensure that you have taken the necessary precautions for safe handling of lasers (see General Laser Safety Guidelines for Juniper Networks Devices).

• A rubber safety cap to cover the transceiver

• A rubber safety cap to cover the fiber-optic cable connector

1. Disable the port in which the transceiver is installed by issuing the following command:
   [edit interfaces]

   user@router# set interface-name disable
   Warning

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

2. Carefully unplug the fiber-optic cable connector from the transceiver.
3. Cover the transceiver with a rubber safety cap.Warning

   Do not leave a fiber-optic transceiver uncovered except when inserting or removing a cable. The rubber safety cap keeps the port clean and prevents accidental exposure to laser light.

4. Cover the fiber-optic cable connector with the rubber safety cap.

Connecting a Fiber-Optic Cable

ACX Series routers have field-replaceable unit (FRU) optical transceivers to which you can connect fiber-optic cables.

Before you begin connecting a fiber-optic cable to an optical transceiver installed in a router, ensure that you have taken the necessary precautions for safe handling of lasers (see General Laser Safety Guidelines for Juniper Networks Devices).

1. If the fiber-optic cable connector is covered by a rubber safety cap, remove the cap. Save the cap.
2. Remove the rubber safety cap from the optical transceiver. Save the cap.
3. Insert the cable connector into the optical transceiver (see Figure 3).

   Figure 3: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed in an ACX Series Router

   

4. Secure the cables so that they are not supporting their own weight. Place excess cable out of the way in a neatly coiled loop. Placing fasteners on a loop helps cables maintain their shape.Caution

   Do not bend fiber-optic cables beyond their minimum bend radius. An arc smaller than a few inches in diameter can damage the cables and cause problems that are difficult to diagnose.

   Do not let fiber-optic cables hang free from the connector. Do not allow fastened loops of cables to dangle, which stresses the cables at the fastening point.

Replacing an SFP Transceiver

• Removing an SFP Transceiver

• Installing an SFP Transceiver

Removing an SFP Transceiver

Removing a transceiver does not interrupt router functioning, but the removed transceiver no longer receives or transmits data.

1. Have ready a replacement transceiver or a transceiver slot plug, an antistatic mat, and a rubber safety cap for the transceiver.
2. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
3. Label the cables connected to the transceiver so that you can reconnect them correctly later. Warning

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

4. Remove the cable connector from the transceiver.
5. Pull the ejector handle out from the transceiver to unlock the transceiver. Caution

   Make sure that you open the ejector handle completely until you hear it click. This action prevents damage to the transceiver.

   Use needle-nose pliers to pull the ejector handle out from the transceiver.

6. Grasp the transceiver ejector handle, and pull the transceiver approximately 0.5 in. (1.3 cm) out of the router.
7. Using your fingers, grasp the body of the transceiver, and pull it the rest of the way out of the router.

   Figure 4: Removing Transceivers

   

8. Place a rubber safety cap over the transceiver.
9. Place the removed transceiver on an antistatic mat or in an electrostatic bag.

Installing an SFP Transceiver

1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
2. Take each transceiver to be installed out of its electrostatic bag, and identify the slot on the component where it will be installed.
3. Verify that each transceiver is covered by a rubber safety cap. If it is not, cover the transceiver with a safety cap.
4. Carefully align the transceiver with the slots in the component. The connectors should face the component.
5. Slide the transceiver until the connector is seated in the component slot. If you are unable to fully insert the transceiver, make sure the connector is facing the right way.
6. Close the ejector handle of the transceiver.
7. Remove the rubber safety cap from the transceiver and the end of the cable. Insert the cable into the transceiver.Warning

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

8. Verify that the status LEDs on the front panel indicate that the transceiver is functioning correctly. For more information about the component LEDs, see the LEDs on ACX500 Routers.