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= UPS Un-Interruptible power supply =
 * Normally achieved with a battery backup.
 * see
   * [[linux/ups]]
   * [[eco/powerbackup]]
 * [[3PhasePower]]
The main focus here is to look at requirements for a UPS at a small remote branch or remote site.
= Surge protection =
 * [[attachment:Moxa_White_Paper---How_to_Prevent_Serial_Power_Surges.pdf]]

= Kinetic UPS =
 * [[http://www.euro-diesel.com/|euro-diesel]] kinetic ups + gen set.
 * [[http://en.wikipedia.org/wiki/Flywheel_energy_storage#Motor_sports|Flywheel_energy_storage#Motor_sports]]

== Requirements / Ideal for remote unit's ==
 * Critical
   * Remotely managed through network SNMP and possibly WEB
     * Status & Events, on-line, off-line, battery problems  (SNMP and TRAPS)
   * Multiple input's
     * Escom power from grid
     * Solar from panels
     * Wind ?
     * Generator set - Autostart
   * Tolerant of harsh environment - 65C and vibrations.
   * 220V output or 48V.  (Cisco needs 48v Regulated)
 * Preferred
   * External battery's
     * Either modular, or capable of adding external lead-acid battery's
   * Power flow
     * Watt's in and out on each input and output.
   * Battery management
     * Protection against damage due to full discharge
     * Measurement and reporting on quality/status/life of battery unit
 * Nice to have
   * Remote power control, or scheduled control
     * Capable of switching off certain outlets (4-6 Outlets)
   * Environmental 
     * Temperature etc. that could reduce battery life.
     * Capable of operating at high temperatures e.g. 65C
   * Reporting and historical data

== Equipment power requirements ==
 * 16w - Cisco 3000 Industrial Ethernet switch - 15Watt
 * 50w - Motorola PTP300
 * 12w - Cisco 350 AP
 * ??w - Rectifier + Management
 * Total: 16w + 50w x 4 + 12w x 2 = 240w ==> 5A@48v 

== Home Made UPS ==
 * [[http://www.flickr.com/photos/dingolishious/1485014471/ |IP Power 9200 delux + UPS + Remote mon $70]]
 * [[http://www.aviosys.com/ippower.htm|Aviosys]] power monitoring unit with network connection + relay's


== South African Company's ==
 * GSM-Tronix
 * Meisner

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CategoryNetwork