Connecting the M40e Router to a Management Console or Auxiliary Device
To use a system console to configure and manage the Routing Engine, connect it to the appropriate CONSOLE port on the CIP. To use a laptop, modem, or other auxiliary device, connect it to the appropriate AUXILIARY port on the CIP. 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 M40e Router.
To connect a management console or auxiliary device:
- Turn off the power to the console or auxiliary device.
- Plug the female end (shown in Figure 1) of the provided serial cable into the appropriate CONSOLE or AUXILIARY port. Figure 2 shows the external device ports on the CIP. The ports labeled HOST 0 connect to the Routing Engine in the upper Routing Engine slot (RE 0), and the ports labeled HOST 1 connect to the Routing Engine in the lower Routing Engine slot (RE 1).
- Using a 2.5-mm flat-blade screwdriver, tighten the screws on the connector.
- Attach the other end of the cable to the console or auxiliary device.
Figure 1: Console and Auxiliary Serial Port Connector

Figure 2: Routing Engine Management Ports and Alarm Relay Contacts

