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Replacing the Console or Auxiliary Cable on the M120 Routing Engine

 

To use a system console to configure and manage the Routing Engine, connect it to the appropriate CONSOLE port on the craft interface. To use a laptop, modem, or other auxiliary device, connect it to the appropriate AUX port on the craft interface. Both ports accept a cable with an RJ-45 connector. One RJ-45/DB-9 cable is provided with the router. To connect a device to the other port, you must supply another cable. For cable specifications, see Routing Engine Interface Cable and Wire Specifications for the M120 Router.

To connect a management console or auxiliary device:

  1. Plug one end of the replacement cable into the appropriate CONSOLE or AUX port. Figure 1 shows the external device ports on the craft interface. The ports labeled 0 connect to the Routing Engine in the left Routing Engine slot (RE0), and the ports labeled 1 connect to the Routing Engine in the right Routing Engine slot (RE1).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

  2. Plug the other end of the cable into the device's serial port.
Figure 1: M120 Routing Engine Interface Ports and Alarm Relay Contacts
M120 Routing Engine Interface
Ports and Alarm Relay Contacts