Microsens MS453522M - Manual (Page 231)

MICROSENS 8 Port Gigabit Ethernet Switch User’s Manual
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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.