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Connecting the MX104 to the Network

Connecting the MX104 Router to Management Devices

To connect external devices and cables to the router, you need the following tools:

  • RJ-45 Ethernet cable and RJ-45 to DB-9 serial port adapter (provided)

  • Management host, such as a PC, with an Ethernet port (not provided)

The following topics provide instructions for connecting the router to management devices:

Connecting the Router to a Network for Out-of-Band Management

To connect to the ETHERNET port on the MX104 Routing Engine:

  1. Turn off the power to the management device.
  2. Plug one end of the Ethernet cable into the MGMT port on the Routing Engine. (Figure 1 shows the connector. Figure 2 shows the port.)
  3. Plug the other end of the cable into the network device.
Figure 1: Ethernet Cable ConnectorEthernet Cable Connector
Figure 2: Ethernet PortEthernet Port

Connecting the Router to a Management Console Device

You can connect a console, laptop, modem, or other auxiliary device by connecting a serial cable to the port on the front panel labeled CONSOLE. This port accepts a serial cable with an RJ-45 connector that is provided with the router.

Note:

The AUX port is not supported.

To connect a management console or auxiliary device:

  1. Turn off the power to the console or auxiliary device.
  2. Plug the RJ-45 end of the serial cable into the CONSOLE port on the Routing Engine (Figure 3 shows the connector. Figure 4 shows the ports.)
  3. Plug the socket DB-9 end into the serial port of the device.
    Note:

    For console devices, configure the serial port to the following values:

    • Baud rate—9600

    • Parity—N

    • Data bits—8

    • Stop bits—1

    • Flow control—none

Figure 3: Routing Engine Console Cable ConnectorRouting Engine Console Cable Connector
Figure 4: Console ConnectionsConsole Connections

Connecting the MX104 Router to External Clocking and Timing Devices

The MX104 router supports external clock synchronization for Synchronous Ethernet, T1 or E1 line timing sources, and external inputs.

Connecting 1-PPS and 10-MHz Timing Devices to the MX104 Router

The MX104 router has four SMB connectors that support 1-PPS and 10-MHz timing devices.

Note:

Ensure a cable of 3 m or less in length is used for the 10-MHz and 1-PPS connectors.

To connect the SMB coaxial cable to the external clocking input port:

  1. Connect one end of the SMB coaxial cable to either the 1-PPS SMB connector or the 10-MHz SMB connector on the router.
  2. Connect the other end of the SMB coaxial cable to the 10-MHz or 1-PPS source network equipment.
    Note:

    Ensure that the 10-MHz or 1-PPS source network equipment contains a complementary metal oxide semiconductor (LVCMOS) of a low voltage of 50 ohms or is compatible with low-voltage transistor-transistor logic (LVTTL) (3.3v).

Connecting a T1 or E1 External Clocking Device to the MX104 Router

The MX104 router contains an external building-integrated timing supply (BITS) port labeled EXT REF CLOCK on the front panel of the router.

To connect the router to a BITS T1 or E1 external clocking device:

  1. Attach an electrostatic discharge (ESD) grounding trap on your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. Plug one end of the RJ-45 cable into the internal clock port on the craft interface.
  3. Plug the other end of the RJ-45 cable into the T1 or E1 external clocking device.
  4. Verify that the LEDs for the external clock input are lit steadily green.
  5. Configure the port. See Configuring Clock Synchronization Interface on MX Series Routers.

Connecting a Time-of-Day Device to the MX104 Router

A time-of-day port labeled TOD on the front panel of the router allows you to connect external timing devices such as the TCA6500 timing client.

To connect the router to a TOD external timing device:

  1. Attach an electrostatic discharge (ESD) grounding trap on your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. Plug one end of the RJ-45 cable into the TOD port on the front panel.
  3. Plug the other end of the RJ-45 cable into the TOD timing device.
  4. Verify that the LEDs for the TOD port on the router are lit steadily green.
  5. Configure the port. See Configuring Clock Synchronization Interface on MX Series Routers.

Connecting Interface Cables to MX104 Routers

To connect the physical interfaces to the network (see Figure 5):

  1. Have ready a length of the type of cable used by the component. For MIC cable specifications, see the MX Series Interface Module Reference.
  2. Remove the rubber safety plug from the cable connector port.
    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 a transceiver emit laser light that can damage your eyes.

    CAUTION:

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

  3. Insert the cable connector into the cable connector port on the faceplate.
    Note:

    The XFP cages and optics on the components are industry standard parts that have limited tactile feedback for insertion of optics and fiber. You need to insert the optics and fiber firmly until the latch is securely in place.

  4. Arrange the cable to prevent it 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.
    CAUTION:

    Avoid bending a 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.

    CAUTION:

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

Figure 5: Attaching a Cable to a MICAttaching a Cable to a MIC