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Maintaining ACX5048 and ACX5096 Components

Removing a Transceiver from an ACX5000 Router

Before you begin removing a transceiver from the ACX routers, ensure that you have taken the necessary precautions for safe handling of lasers (see Laser and LED Safety Guidelines and Warnings for the ACX5000 Router).

Ensure that you have the following parts and tools available:

  • Antistatic bag or an antistatic mat

  • Needle-nose pliers

  • Rubber safety caps to cover the transceiver and fiber-optic cable connector

  • Dust cover to cover the port

The transceivers for the ACX routers are hot-removable and hot-insertable field-replaceable units (FRUs). You can remove and replace them without powering off the router or disrupting routing functions.

To remove a transceiver from an ACX5000 router:

  1. Place the antistatic bag or antistatic mat on a flat, stable surface.
  2. Label the cable connected to the transceiver so that you can reconnect it correctly.
    Laser 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.

    Laser 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.

    CAUTION:

    Do not bend fiber-optic cables beyond their minimum bend radius. Bending the cables beyond their minimum bend radius can damage the cables and cause problems that are difficult to diagnose.

  3. Remove the cable connected to the transceiver (see Disconnecting a Fiber-Optic Cable from an ACX5000 Router). Cover the transceiver and the end of each fiber-optic cable connector with a rubber safety cap immediately after disconnecting the fiber-optic cables.
  4. Using your fingers, pull the ejector lever away from the transceiver to unlock the transceiver.
    CAUTION:

    Before removing the transceiver, make sure you open the ejector lever completely until you hear it click. This prevents damage to the transceiver.

  5. Grasp the transceiver ejector lever and gently slide the transceiver approximately 0.5 in. (1.3 cm) straight out of the port.
    CAUTION:

    To avoid electrostatic discharge (ESD) damage to the transceiver, do not touch the connector pins at the end of the transceiver.

  6. Using your fingers, grasp the body of the transceiver and pull it straight out of the port.
  7. Place the transceiver in the antistatic bag or on the antistatic mat placed on a flat, stable surface.
  8. Place the dust cover over the empty port.

Installing a Transceiver in an ACX5000 Router

Before you begin installing a transceiver in an ACX router, ensure that you have taken the necessary precautions for safe handling of lasers (see Laser and LED Safety Guidelines and Warnings for the ACX5000 Router).

Ensure that you have a rubber safety cap available to cover the transceiver.

The transceivers for the ACX routers are hot-removable and hot-insertable field-replaceable units (FRUs). You can remove and replace them without powering off the device or disrupting device functions.

To install a transceiver in an ACX5000 router:

CAUTION:

To avoid electrostatic discharge (ESD) damage to the transceiver, do not touch the connector pins at the end of the transceiver.

  1. Remove the transceiver from its bag.
  2. Check to see whether the transceiver is covered by a rubber safety cap. If it is not, cover the transceiver with a rubber safety cap.
    Laser 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.

  3. If the port in which you want to install the transceiver is covered with a dust cover, remove the dust cover and save it in case you need to cover the port later.
  4. Using both hands, carefully place the transceiver in the empty port. The connectors must face the device chassis.
    CAUTION:

    Before you slide the transceiver into the port, ensure that the transceiver is aligned correctly. Misalignment might cause the pins to bend, making the transceiver unusable. See Figure 1 through Figure 3 for the correct orientation for your router.

  5. Slide the transceiver in gently until it is fully seated. See Figure 1 for an example of inserting an SFP transceiver. Figure 2, and Figure 3 are examples of inserting QSFP+ transceivers into different ACX5000 router product SKU devices.
  6. Remove the rubber safety cap when you are ready to connect the cable to the transceiver.
    Laser 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.

Figure 1: Installing an SFP Transceiver Installing an SFP Transceiver
Figure 2: Installing a QSFP+ Transceiver—Vertical OrientationInstalling a QSFP+ Transceiver—Vertical Orientation
Figure 3: Installing a QSFP+ Transceiver—Horizontal OrientationInstalling a QSFP+ Transceiver—Horizontal Orientation

Disconnecting a Fiber-Optic Cable from an ACX5000 Router

Before you disconnect a fiber-optic cable from an optical transceiver installed in an ACX router, ensure that you have taken the necessary precautions for safe handling of lasers (see Laser and LED Safety Guidelines and Warnings for the ACX5000 Router).

Ensure that you have the following parts and tools available:

  • Rubber safety cap to cover the transceiver

  • Rubber safety cap to cover the fiber-optic cable connector

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

To disconnect a fiber-optic cable from an optical transceiver installed in an ACX5000 router:

  1. (Recommended) Disable the port in which the transceiver is installed by including the disable statement at the [edit interfaces] hierarchy level for the specific interface.
    Laser 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.

    Laser Warning:

    Do not stare into the laser beam or view it directly with optical instruments even if the interface has been disabled.

  2. Carefully unplug the fiber-optic cable connector from the transceiver.
  3. Cover the transceiver with a rubber safety cap.
    Laser 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 to an ACX5000 Router

Before you connect a fiber-optic cable to an optical transceiver installed in an ACX router, ensure that you have taken the necessary precautions for safe handling of lasers (see Laser and LED Safety Guidelines and Warnings for the ACX5000 Router).

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

To connect a fiber-optic cable to an optical transceiver installed in an ACX5000 router:

Laser 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.

Laser Warning:

Do not stare into the laser beam or view it directly with optical instruments even if the interface has been disabled.

  1. If the fiber-optic cable connector is covered by a rubber safety cap, remove the cap. Save the cap.
  2. If the optical transceiver is covered by a rubber safety cap, remove the cap. Save the cap.
  3. Insert the cable connector into the optical transceiver.
  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. Bending the cables beyond their minimum bend radius can damage the cables and cause problems that are difficult to diagnose.

    CAUTION:

    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.

Maintaining Fiber-Optic Cables in an ACX5000 Router

To maintain fiber-optic cables in an ACX5000 router:

  • When you unplug a fiber-optic cable from a transceiver, place rubber safety caps over the transceiver and on the end of the cable.

  • Anchor fiber-optic cable to avoid stress on the connectors. When attaching a fiber-optic cable to a transceiver, be sure to secure the fiber-optic cable so that it is not supporting its own weight as it hangs to the floor. Never let a fiber-optic cable hang free from the connector.

  • Do not bend fiber-optic cables beyond their minimum bend radius. Bending the cables beyond their minimum bend radius can damage the cables and cause problems that are difficult to diagnose.

  • Frequent plugging and unplugging of fiber-optic cables in and out of optical instruments can damage the instruments, which are expensive to repair. Attach a short fiber extension to the optical equipment. Any wear and tear due to frequent plugging and unplugging is then absorbed by the short fiber extension, which is easier and less expensive to replace than the instruments.

  • Keep fiber-optic cable connections clean. Microdeposits of oil and dust in the canal of the transceiver or cable connector can cause loss of light, reduction in signal power, and possibly intermittent problems with the optical connection.

    To clean the transceiver canal, use an appropriate fiber-cleaning device such as RIFOCS Fiber Optic Adaptor Cleaning Wands (part number 946). Follow the directions in the cleaning kit you use.

    After cleaning the transceiver, make sure that the connector tip of the fiber-optic cable is clean. Use only an approved alcohol-free fiber-optic cable cleaning kit such as the Cletop-S® Fiber Cleaner. Follow the directions in the cleaning kit you use.

Removing a Fan Module from an ACX5000 Router

Before you remove a fan module from a ACX5000 router, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

Ensure that you have the following parts and tools available to remove a fan module from a ACX5000 router:

  • ESD grounding strap

  • Antistatic bag or an antistatic mat

The fan modules in ACX5000 routers are hot-removable and hot-insertable field replaceable units (FRUs): you can remove and replace them without powering off the router or disrupting routing functions.

CAUTION:

Replace a failed fan module with a new fan module within 1 minute of removal to prevent chassis overheating. Before removing the fan module, ensure you have a replacement fan module at hand.

To remove a fan module from an ACX5000 router (see Figure 4 and Figure 5):

  1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  2. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  3. Using a Phillips screwdriver, loosen the locking screw (3 or 4 turns).
  4. Grasp the handle on the fan module and squeeze the outside of the handle to release the module.
    Warning:

    To avoid injury, do not touch the fan with your hands or any tools as you slide the fan module out of the chassis—the fan might still be running.

  5. Pull firmly to slide the fan module halfway out of the chassis.
  6. When the fan stop spinning, slide the fan module completely out of the chassis.
  7. Place the fan module in the antistatic bag or on the antistatic mat placed on a flat, stable surface.
Figure 4: Removing a Fan Module from a 1 U ACX5048Removing a Fan Module from a 1 U ACX5048
Figure 5: Removing a Fan Module from a 2 U ACX5096Removing a Fan Module from a 2 U ACX5096
Note:

When a fan module is removed, the CLI message Fan/Blower is Absent is logged in the system log, and the system raises a minor alarm.

Installing a Fan Module in an ACX5000 Router

Before you install a fan module in a ACX5000 router, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

The fan modules in an ACX5000 router are hot-removable and hot-insertable field replaceable units (FRUs): you can remove and replace them without powering off the router or disrupting routing functions.

CAUTION:

Replace a failed fan module with a new fan module within 1 minute of removal to prevent chassis overheating. Before removing the fan module, ensure you have a replacement fan module at hand.

Note:

The fan module provides port-to-FRU airflow (AFO).

To install a fan module in an ACX5000 router (see Figure 6 and Figure 7):

  1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  2. Taking care not to touch the connectors, remove the fan module from its bag.
  3. Align the module with the open slot on the management panel of the chassis and slide it in until it is fully seated.
    CAUTION:

    Damage can occur if you attempt to install a fan module into a chassis with a different airflow direction. Compare the router product SKU with the airflow marking on the handle to ensure that you are installing a fan module with the same airflow direction as the chassis. The fan modules are designed so that they can only be inserted into the ACX5000 product SKU that supports the same airflow type. See Cooling System and Airflow in an ACX5000 Router for more information.

  4. Using a Phillips screwdriver, turn the locking screw until it is tight.
Figure 6: Installing a Fan Module in a 1 U ACX5048Installing a Fan Module in a 1 U ACX5048
Figure 7: Installing a Fan Module in a 2 U ACX5096Installing a Fan Module in a 2 U ACX5096

Removing a Power Supply from an ACX5000 Router

Before you remove a power supply from a ACX5000 router, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

Ensure that you have the following parts and tools available to remove a power supply from a ACX5000 router:

  • ESD grounding strap

  • Antistatic bag or an antistatic mat

  • Phillips (+) screwdriver, number 2 (DC power supply)

The power supplies in an ACX5000 router are hot-removable and hot-insertable field-replaceable units (FRUs): you can remove and replace them without powering off the router or disrupting routing functions.

CAUTION:

Replace the power supply with a new power supply within 1 minute of removal to prevent chassis overheating.

To remove a power supply from an ACX5000 router (see Figure 8 and Figure 9):

  1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  2. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
    Note:

    If only one power supply is installed in your ACX5000 router, you need to power off the router before removing the power supply. See Powering Off an ACX5000 Router.

  3. Disconnect power to the router:
    • AC power supply—If the AC power source outlet has a power switch, set it to the OFF (O) position. If the AC power source outlet does not have a power switch, gently pull out the power cord plug connected to the power source outlet.

    • DC power supply—Switch the circuit breaker on the panel board that services the DC circuit to the OFF position.

  4. Remove the power source cable from the power supply faceplate:
    • AC power supply—Remove the power cord from the power supply faceplate by detaching the power cord retainer and gently pulling out the socket end of the power cord connected to the power supply faceplate.

    • DC power supply—Remove the screws securing the ring lugs attached to the power source cables to the power supply using the screwdriver, and remove the power source cables from the power supply. Replace the screws on the terminals and tighten them.

  5. Slide the locking lever toward the handle until it stops.
  6. Grasp the power supply handle and pull firmly to slide the power supply halfway out of the chassis.
  7. Place one hand under the power supply to support it and slide it completely out of the chassis. Take care not to touch power supply components, pins, leads, or solder connections.
  8. Place the power supply in the antistatic bag or on the antistatic mat placed on a flat, stable surface.
Figure 8: Removing Power Supply from an ACX5048Removing Power Supply from an ACX5048
Figure 9: Removing Power Supply from an ACX5096Removing Power Supply from an ACX5096

Installing a Power Supply in an ACX5000 Router

The power supplies in an ACX5000 router are hot-removable and hot-insertable field-replaceable units (FRUs): you can remove and replace them without powering off the router or disrupting routing functions.

To install a power supply in an ACX5000 router (see Figure 10 and Figure 11):

  1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  2. Taking care not to touch power supply components, pins, leads, or solder connections, remove the power supply from its bag.
    CAUTION:

    Verify that the direction of the arrow on the power supply handle matches the direction of airflow in the chassis. Ensure that each power supply you install in the chassis has the same airflow direction. If you install power supplies with two different airflow directions, Junos OS raises an alarm, and the status (ALM) LED blinks amber.

  3. Using both hands, place the power supply in the power supply slot on the FRU panel of the router and slide it in until it is fully seated and the locking lever slides into place.
Figure 10: Installing Power Supply in an ACX5048Installing Power Supply in an ACX5048
Figure 11: Installing Power Supply in an ACX5096Installing Power Supply in an ACX5096
Note:

Each power supply must be connected to a dedicated power source outlet.

Note:

If you have a Juniper J-Care service contract, register any addition, change, or upgrade of hardware components at https://www.juniper.net/customers/csc/management/updateinstallbase.jsp . Failure to do so can result in significant delays if you need replacement parts. This note does not apply if you replace components with the same type of component.

Powering Off an ACX5000 Router

Before you power off an ACX5000 router:

Ensure that you have the following parts and tools available to power off the router:

  • An ESD grounding strap

  • An external management device such as a PC

  • An RJ-45 to DB-9 rollover cable to connect the external management device to the console port

To power off an ACX5000 router:

  1. Connect to the router using one of the following methods:
  2. Shut down Junos OS from the external management device by issuing the request system halt operational mode CLI command. This command shuts down the router gracefully and preserves system state information. A message appears on the console, confirming that the operating system has halted.

    You see the following output (or something similar, depending on the hardware being shut down) after entering the command:

    CAUTION:

    The final output of any version of the request system halt command is the “The operating system has halted.” Wait at least 60 seconds after first seeing this message before following the instructions in Step 4 and Step 5 to power off the router.

  3. Attach the grounding strap to your bare wrist and to a site ESD point.
  4. Disconnect power to the router by performing one of the following tasks:
    • AC power supply—If the AC power source outlet has a power router, set it to the OFF (O) position. If the AC power source outlet does not have a power router, gently pull out the power cord plug connected to the power source outlet.

    • DC power supply—router the circuit breaker on the panel board that services the DC circuit to the OFF position.

  5. Remove the power source cable from the power supply faceplate:
    • AC power supply—Remove the power cord from the power supply faceplate by detaching the power cord retainer and gently pulling out the socket end of the power cord connected to the power supply faceplate.

    • DC power supply—Remove the screws securing the ring lugs attached to the power source cables to the power supply using the screwdriver, and remove the power source cables from the power supply. Replace the screws on the terminals and tighten them.

  6. Uncable the router before removing it from the rack or cabinet.