FAQ-S7700/S9700/S12700 Logging In to the SPU Through the Console Interface

Latest reply: May 26, 2015 09:06:17 1851 1 0 0

Q :S7700/S9700/S12700 Logging In to the SPU Through the Console Interface ?

A :

If you cannot log in to the MPU of the switch, you need to log in to the SPU for the first time through the console interface. This topic describes how to log in to the SPU from a PC through the console interface.

Networking Requirements

To log in to the SPU through the console interface, connect the console interface on the SPU to the RS232 interface on the host through a serial cable, as shown in Figure 1.

Figure 1 Connecting to the SPU through the console interface


  1. Use a serial cable to connect the PC with the SPU as shown in Figure 1.
  2. Start the HyperTerminal on the PC.

Choose Start > All Programs > Accessories > Communications > HyperTerminal to start the HyperTerminal.

  1. Set up a new connection.

Figure 2 Setting up a new connection

As shown in Figure 2, enter the name of the new connection in the Name text box and choose an icon for the connection. Click OK.

  1. Configure the connected interface.

Figure 3 Configuring the connected interface

In the Connect to window shown in Figure 3, select an interface from the Connect using drop-down list box according to the interface on the PC or terminal. Then click OK.

  1. Set communication parameters.

In the COM1 Properties window shown in Figure 4, set communication parameters according to Table 1.

Figure 4 Setting communication parameters

Table 1 Communication parameters



Bit per second (baud)


Data bit


Parity check


Stop bit


Flow control (traffic control)



In some versions of the Windows operating systems, Bit per second may be called Baud rate and Flow control may be called Traffic control.

  1. After the HyperTerminal starts, choose File > Attributes to display the COMM1 Properties dialog box, as shown in Figure 5. Click the Settings tab, and select Auto detect or VT100 from the Emulation drop-down list box. Click OK to complete the settings.

Figure 5 Selecting a terminal type

After the preceding settings, press Enter. If the <Quidway> prompt is displayed, you have logged in to the SPU. You can enter commands to configure or manage the SPU.


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Created May 26, 2015 09:06:17 Helpful(0) Helpful(0)

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