The basic rule of physics that "watts = volts x amps" is based on direct current (DC) circuits. AC is more efficient but when it hits the transformers, it suffers from reactance.
Reactance reduces the useful power (watts) available from the apparent power (volt-amperes). Power Factor (PF) is the ratio of these two numbers. Therefore, the actual power formula for AC circuits is "watts = volts x amps x power factor." Unfortunately, the PF is rarely stated but generally is a number of 1.0 or less, and about the only thing with a 1.0 PF is a light bulb.
Figure out total loading of product Amps (A) Watts (W).
Multiply voltage by amps (V x A).
VA x 135%= the size of the UPS you would need.
* Estimated Average Growing Space 135%
A. Ex: 1 PC= 2A 1 Monitor=1.5A, Total= 3.5A
3.5A x 120V= 420VA x 130%= 546VA.
B. Ex: 1 DVR = 300 Watts, 5 CCTV = 350 Watts, Total = 650 Watts
W = P.F. x VA, Direct UPS JP X series P.F = 0.7 & VP series = 0.6
650 W = 0.7 x VA , VA =650w/0.7, Total Loading = 929VA
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...