
Installation precautions ......................10
General precautions ......................11
Power precautions ......................11
Preparing the installation site....................12
Cabling infrastructure .....................12
Installation location ......................12
Installing the device .......................12
Desktop installation ......................12
Rack mount installation .....................12
Powering on the system .....................14
Powering off the system ....................14
Verifying proper operation .....................14
Observing the power status LEDs .................15
Attaching a PC or terminal ....................15
Chapter 3. Connecting Network Devices and Checking Connectivity ...19
Assigning permanent passwords ..................19
Recovering from a lost password .................20
Configuring IP addresses .....................20
Devices running Layer 2 software .................21
Connecting network devices ....................21
Connectors and cable specifications ................21
Connecting to Ethernet or fast Ethernet hubs .............21
Connecting to workstations, servers, or routers ............23
Automatic MDI or MDIX detection ................23
Connecting a network device to a fiber port ............23
Testing connectivity .......................24
Pinging an IP address .....................24
Observing LEDs .......................24
Tracing a route ........................25
Troubleshooting network connections.................26
Support for digital optical monitoring ................26
Chapter 4. Managing the B24X ..................27
Managing temperature settings ...................27
Using the temperature sensor ..................27
Displaying the temperature ...................27
Displaying temperature messages .................27
Changing the temperature warning level ..............28
Changing the device temperature polling interval ...........28
Removing MAC address entries ..................28
Chapter 5. Maintaining the B24X Hardware .............31
Hardware maintenance schedule ..................31
Replacing a fiber optic module ...................31
Removing a fiber optic module ..................31
Installing a new fiber optic module.................32
Cabling a fiber optic module ...................32
Cleaning the fiber-optic connectors ................33
Replacing a power supply .....................33
Installation precautions and warnings................33
Determining which power supply failed ...............33
Replacing AC power supplies ..................34
Removing an AC power supply .................34
Installing an AC power supply .................35
Removing the battery ......................38
iv IBM x-series of Ethernet Switches Installation and User Guide