GS-2124C User Manual

5. Maintenance

5-1. Resolving No Link Condition

The possible causes for a no link LED status are as follows:

￿The attached device is not powered on

￿The cable may not be the correct type or is faulty

￿The installed building premise cable is faulty

￿The port may be faulty

5-2. Q&A

1.Computer A can connect to Computer B, but cannot connect to Computer C through the Managed Switch.

￿The network device of Computer C may fail to work. Please check the link/act status of Computer C on the LED indicator. Try another network device on this connection.

￿The network configuration of Computer C may be something wrong. Please verify the network configuration on Computer C.

2.The uplink connection function fails to work.

￿The connection ports on another must be connection ports. Please check if connection ports are used on that Managed Switch.

￿Please check the uplink setup of the Managed Switch to verify the uplink function is enabled.

3.The console interface cannot appear on the console port connection.

￿The COM port default parameters are [Baud Rate: 57600, Data Bits: 8,

Parity Bits: None, Stop Bit: A, Flow Control: None]. Please check the COM port property in the terminal program. And if the parameters are changed, please set the COM configuration to the new setting.

￿Check the RS-232 cable is connected well on the console port of the Managed Switch and COM port of PC.

￿Check if the COM of the PC is enabled.

4.How to configure the Managed Switch?

￿The “Hyperterm” is the terminal program in Win95/98/NT. Users can also use any other terminal programs in Linux/Unix to configure the Managed Switch. Please refer to the user guide of that terminal program. But the COM port parameters (baud rate/ data bits/ parity bits/ flow control) must be the same as the setting of the console port of the Managed Switch.

Publication date: June, 2005

Revision A1

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Ruby Tech GS-2124C manual Maintenance

GS-2124C specifications

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