Instruction/ maintenance manual of the product STACKT150CM Cisco Systems
Go to page of 17
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 1 of 17 W hite Paper Cisco StackPower : Ef ficient Use of Power Introduction The Cisco Sta.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 2 of 17 Cisco Stac kPower technol ogy immedia tely produces savings b y reducing the number of power supplies required per switch an d the numb er of outlets required i n the wiring cl oset.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 3 of 17 Note that a ll power available in the power sta ck is co mbined i nto one si ngle large pool of po wer, and the stac k become s a large s ingle lo ad to the po wer pool (Figure 2 ).
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 4 of 17 Cisco Cata lyst 3750-X and 35 60-X Series Switches d o not cons ume more power than the res t of the Catal yst 3750 family of s witches, but th e power budget req uired is h igher.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 5 of 17 Figure 4. Ring Topology Figure 5.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 6 of 17 An XPS cable has a color b and on the cable end s as well, red o n one end and yellow on the o ther end. This c able can onl y be used to c onnect Cata lyst 3750-X or 3560 -X switch to an XPS.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 7 of 17 Use Case for the Cisco StackPow er Feature Figure 6. Power Stack of Four Switches The following us e cases will help you unde rstand the Cisco Stack Power technology an d its mai n features.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 8 of 17 Although the power stack in the example h as extra capaci ty that gets in the power pool, i t is not s ufficient to power the switch D an d PoE devices attached t o it.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 9 of 17 “show env pow er all” SW PID Serial# Status Sys Pwr PoE Pwr Watts 1A NG3K-PW R.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 10 of 17 A maximum of 8 400W i s possi ble in a po ol of power in a stack of four switches l oaded with two 1100W power suppli es each.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 11 of 17 Figure 8. Power Share Mode In the fol lowing scenari o, the Cisc o StackPower tech nology aggreg ates three power supplies on four switche s (1100W + 1100W + 1100W + 0W = 3300W ).
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 12 of 17 Power Share “Strict” Mode The power sharing m ode has an inherent capabili ty to oversubsc ribe itsel f in case of power supply fai lures.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 13 of 17 configu red, but it would not offline any power supply from the system. This action n eeds to be performed by an admini strator of the power stack.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 14 of 17 Immedi ate load s hed occu rs when a failure could ca use the po wer stack to fai.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 15 of 17 The table sh ows the default priorities used by Stack Power that can be overwritten by an admi nistrator.
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 16 of 17 Power supply slo ts are nam ed left to ri ght, that is , power supply sl ot A in on the left and p ower supply slot B i s on the right (closest to the edge of the switch).
© 2012 Cisco and/o r its affiliates. All rights r eserved. This docu ment is Cisco Public Infor mation. Page 17 of 17 The recomm endation i s to perform the calc ulation of required po wer in the pow.
An important point after buying a device Cisco Systems STACKT150CM (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cisco Systems STACKT150CM yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cisco Systems STACKT150CM - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cisco Systems STACKT150CM you will learn all the available features of the product, as well as information on its operation. The information that you get Cisco Systems STACKT150CM will certainly help you make a decision on the purchase.
If you already are a holder of Cisco Systems STACKT150CM, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cisco Systems STACKT150CM.
However, one of the most important roles played by the user manual is to help in solving problems with Cisco Systems STACKT150CM. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cisco Systems STACKT150CM along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
