Product overview ·························································································································································· 1

Physical architecture ························································································································································· 1

12504 chassis view ················································································································································· 2

12508 chassis views ··············································································································································· 4

12518 chassis views ··············································································································································· 6

Backplane ·········································································································································································· 8

Fan tray ·············································································································································································· 8

Power supply system ························································································································································· 9

AC power supply ·················································································································································· 10

DC power supply··················································································································································· 13

Preparing for installation ··········································································································································· 15

Safety recommendations ··············································································································································· 15

General safety recommendations ························································································································ 15

Electricity safety ····················································································································································· 15

ESD prevention ······················································································································································ 15

Switch moving ······················································································································································· 16

Laser safety ····························································································································································· 16

Examining the installation site ······································································································································ 17

Weight support ······················································································································································ 17

Temperature ··························································································································································· 17

Humidity ································································································································································· 17

Cleanness ······························································································································································· 18

EMI ·········································································································································································· 18

Grounding ······························································································································································ 18

Power supply ·························································································································································· 19

Cooling ··································································································································································· 19

Space ······································································································································································ 21

Rack-mounting ································································································································································ 22

Installation tools ······························································································································································ 23

Installing the switch ···················································································································································· 25

Confirming installation preparations ···························································································································· 26

Installing an impedance carrier (optional) ·················································································································· 26

Installing a chassis air filter (optional) ························································································································· 27

Installing an expansion cable management bracket (optional) ················································································ 28

Installation preparation ········································································································································· 28

Installation procedure ··········································································································································· 29

Installing the switch in a rack ········································································································································ 31

Installing slide rails and cage nuts to the rack ··································································································· 31

Installing the mounting brackets ··························································································································· 33

Mounting the switch in the rack ··························································································································· 34

Verifying the installation ······································································································································· 35

Installing the switch on a workbench ··························································································································· 35

Installation procedures ·········································································································································· 36

Grounding the switch ···················································································································································· 37

Installing a power supply ·············································································································································· 38