Technical data

LED activity................................................................................................... 31
LEDs on the port side of the Extension Switch................................. 31
LEDs on the nonport side of the switch............................................ 34
Interpreting POST results..............................................................................36
Switch maintenance......................................................................................36
Diagnostic tests.................................................................................36
Field-replaceable units......................................................................37
Powering off the switch................................................................................. 37
Removing and replacing transceivers...........................................................38
Time and items required................................................................... 38
Removing an SFP+ transceiver........................................................ 38
Replacing an SFP+ transceiver........................................................ 38
Removal and Replacement of Power Supplies and Fans.........................................................41
Removal and replacement introduction........................................................ 41
Before beginning replacement.......................................................... 41
Power supply removal and replacement.......................................................42
Determining the need to replace a power supply..............................42
Time and items required................................................................... 43
Replacing a power supply.................................................................43
Fan removal and replacement...................................................................... 44
Determining the need to replace a fan..............................................45
Time and items required................................................................... 45
Replacing a Brocade 7840 fan..........................................................45
Brocade 7840 Technical Specifications................................................................................ 47
Regulatory Statements..........................................................................................................55
BSMI statement (Taiwan)..............................................................................55
Canadian requirements.................................................................................55
CE Statement................................................................................................55
China CC statement......................................................................................56
FCC warning (US only)................................................................................. 56
Germany....................................................................................................... 57
KCC statement (Republic of Korea)..............................................................57
VCCI statement.............................................................................................57
Cautions and Danger Notices................................................................................................59
Cautions........................................................................................................59
Danger Notices............................................................................................. 61
Index.................................................................................................................................... 65
4
Brocade 7840 Extension Switch Hardware Reference Manual
53-1003127-02