How to Connect to a Cisco Standard Console Port (RJ-45)?

Step1. Connect laptop serial port to Cisco device’s console port. Below are two examples.

Figure1a shows laptop with DB-9 serial port connected to Cisco device console port.

  1. Connect the RJ-45 to DB-9 adapter (74-0495-01) into the laptop serial port.
  2. Connect the RJ-45 roll-over cable (black or light blue) into the RJ-45 to DB-9 adapter (74-0495-01).
  3. Connect the other end of the RJ-45 Roll-Over cable into Cisco device’s console port.

Figure1a: Connecting Laptop with DB-9 port to console port 

Connecting to a Cisco Standard Console Port01

Figure1b shows Laptop with USB port connected to Cisco device console port.

  1. Connect the USB to serial adapter into the laptop USB port.
  2. Connect the RJ-45 to DB-9 adapter (74-0495-01) to the USB to serial adapter.
  3. Connect the the RJ-45 roll-over cable (black or light blue) into the RJ-45 to DB-9 adapter (74-0495-01).
  4. Connect the other end of the RJ-45 Roll-Over cable into the Cisco device’s console port.

Figure1b: Connecting laptop with USB port to console port

Connecting to a Cisco Standard Console Port-RJ-45

Step2. Open the terminal emulator program being used to access the device. This example uses HyperTerminal.

Step3. Create a new Connection. On the Connection Description dialog, enter a name, select an icon and click OK (Figure 2).

Figure2: HyperTerminal Connection Description dialog

Connecting to a Cisco Standard Console Port03

Step4. The Connect To dialog box opens (Figure 3). Select the correct COM port being used to connect and click OK.

Figure3: HyperTerminal Connect To dialog

Connecting to a Cisco Standard Console Port04

Note: When using a USB-to-serial adapter, use Device Manager to verify which COM port it is using as shown in Figure 4.

Figure4: Device Manager Window

Connecting to a Cisco Standard Console Port05

Step5. The COMx Properties dialog appears as shown in Figure 5.

Figure5: HyperTerminal COMx Properties dialog

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Set the following parameter then click OK:

  • Bits per sec:  9600
  • Data bits:  8
  • Parity:  none
  • Stop bits:  1
  • Flow control:  none

Step6. Communication to the device should be established. Test for a response by using the Enter key.

—Resource from http://www-tss.cisco.com

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