Contents
iv OmniSwitch 6850 Series Hardware Users Guide August 2007
OmniSwitch 6850-P48 ..................................................................................................2-42
OmniSwitch 6850-P24X  ...............................................................................................2-46
OmniSwitch 6850-P48X  ...............................................................................................2-50
Status LEDs ...................................................................................................................2-54
10/100/1000 LEDs  .................................................................................................2-55
100/1000 SFP LEDs ...............................................................................................2-55
10000 XFP1 LEDs  .................................................................................................2-55
10000 XFP2 LEDs  .................................................................................................2-55
Rear Panel  .....................................................................................................................2-56
Mounting the Switch .....................................................................................................2-57
Airflow Considerations  ..........................................................................................2-57
Chassis Airflow  ...............................................................................................2-58
Blank Cover Panels  ................................................................................................2-59
Installation Options  ................................................................................................2-60
Installing the Switch on a Tabletop or Bench  .................................................2-60
Rack-Mounting the Switch ..............................................................................2-61
Installing and Removing Combo Port SFPs ...........................................................2-62
Setting Up a Stacked Configuration ..............................................................................2-63
Rack Mounting Stacked Configurations  ................................................................2-63
Cabling Stacked Configurations .............................................................................2-63
Redundant Stacking Cable Connections  .........................................................2-63
Supported Cabling Patterns .............................................................................2-63
Booting OmniSwitch 6850 Series Switches  .................................................................2-66
Booting a Stand-Alone Switch ...............................................................................2-66
Booting Stacked Configurations ............................................................................2-67
Power Cords ..................................................................................................................2-68
Specifications .........................................................................................................2-68
Console Port ..................................................................................................................2-69
Serial Connection Default Settings ........................................................................2-69
Modifying the Serial Connection Settings  .............................................................2-69
Console Port Pinouts  ..............................................................................................2-71
10/100 Ethernet Port – RJ-45 Pinout (non-PoE) .............................................2-71
Gigabit Ethernet Port – RJ-45 Pinout ..............................................................2-71
10/100/1000 Mbps Power over Ethernet Port – RJ-45 Pinout   .......................2-71
RJ-45 Console Port – Connector Pinout ..........................................................2-72
OmniSwitch 6850 Series Power Supplies .....................................................................2-73
Power Supply Shelf ................................................................................................2-75
PS-510W-AC Power Supply ..................................................................................2-76
PS-360W-AC Power Supply ..................................................................................2-77
PS-126W-AC Power Supply ..................................................................................2-78
PS-120W-DC Power Supply ..................................................................................2-79
Installing Power Supplies .......................................................................................2-80
Connecting a Power Supply Directly to the Chassis .......................................2-80
Connecting a Power Supply with a Cable  .......................................................2-81
DC Power Supply Considerations ...................................................................2-85
Viewing the Power Supply Status ...................................................................2-86