EMC DS-4900B Hardware Reference Manual page 6

Contents
Chapter 3
Chapter 4
Chapter 5
Chapter 6
vi EMC Connectrix B Series DS-4900B Hardware Reference Manual
Verify correct operation and backup the configuration ... 2-15
Recommendations for cable management ................................. 2-18
Operating the DS-4900B
Interpreting LED activity................................................................ 3-2
LEDs on the port side of the switch....................................... 3-2
LEDs on the nonport side of the switch ................................ 3-6
Interpreting POST results ............................................................... 3-8
Maintaining the DS-4900B.............................................................. 3-9
Diagnostic tests ......................................................................... 3-9
Field replaceable units (FRUs)................................................ 3-9
Powering off the DS-4900B........................................................... 3-10
Fan Assembly Replacement Procedure
Fan assembly replacement ............................................................. 4-2
Time required............................................................................ 4-3
Items required ........................................................................... 4-4
Replacing the fan assembly..................................................... 4-4
Power Supply Replacement
Power supply replacement............................................................. 5-2
Time required............................................................................ 5-3
Items required ........................................................................... 5-4
Replacing a DS-4900B switch power supply ........................ 5-4
DS-4900B Specifications
Switch components.......................................................................... 6-2
Weight and physical dimensions................................................... 6-3
Facility requirements....................................................................... 6-4
Power supply specifications........................................................... 6-5
Environmental requirements ......................................................... 6-6
General specifications ..................................................................... 6-7
Data transmission ranges ............................................................... 6-9
Memory specifications .................................................................. 6-10
Fibre Channel port specifications................................................ 6-11
Serial port specifications............................................................... 6-12
POST and boot specifications ...................................................... 6-13
POST......................................................................................... 6-13
Boot........................................................................................... 6-13
Regulatory compliance ................................................................. 6-14