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network:fibers [2019/05/31 11:48] – niziaknetwork:fibers [2024/03/13 08:39] (current) – niziak
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 ===== Multimode MM ===== ===== Multimode MM =====
 +
 Core diameter 50 or 62,5 micron. Core diameter 50 or 62,5 micron.
 Lower cost of LED sources and lasers operation at 850nm and 1300nm. Lower cost of LED sources and lasers operation at 850nm and 1300nm.
-  * OM1 62.5/125um (up to 622Mbit) +  * OM1 62.5/125um (up to 622Mbit / 10Gbit @33 meters) - obsolete 
-  * OM2 50/125 um (up to 622Mbit) +  * OM2 50/125 um (up to 622Mbit / 10Gbit @82 meters) - popular 
-  * OM3 50/125 um (850nm laser optimized up to 10Gbit/s) +  * OM3 50/125 um (850nm laser optimized up to 10Gbit/s / 10 Gbit @300 meters) 
-  * OM4 50/125 um (850nm laser optimized up to 10Gbit/s)+  * OM4 50/125 um (850nm laser optimized up to 100Gbit/s / 10 Gbit @550 meters)
  
 ===== Single Mode SM =====  ===== Single Mode SM ===== 
 +
 Wavelength 1310 or 1550 nm. Wavelength 1310 or 1550 nm.
  
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     * max att 0.4db/km.     * max att 0.4db/km.
     * max distance 10 km     * max distance 10 km
 +
 +  * G.652D
 +    * full spectrum fibers (no high loss in 1360 – 1460 nm)
 +    * suitable for WDM
  
 ====== Transmit Window ====== ====== Transmit Window ======
Line 32: Line 38:
   * 1550 nm - III (SM)   * 1550 nm - III (SM)
   * 1625 nm - IV   * 1625 nm - IV
 +
 +====== cable color =====
 +
 +  * Yellow - single mode
 +  * White - for end user home installation - single mode
 +  * Orange - multimode OM1/OM2
 +  * Turquoise - multimode OM3
 +  * Turquoise / Violet - multimode OM4
 +
 ====== Connector ====== ====== Connector ======
  
 Square Connectors: Square Connectors:
 +  * ST - obsolete - looks like RF BNC connector. Push and rotate to lock.
   * SC - bigger (more popular, older)   * SC - bigger (more popular, older)
   * LC - smaller, half size of SC (Lucent, less popular, license fees)   * LC - smaller, half size of SC (Lucent, less popular, license fees)
 +    * popular for SFP adapters as full fuplex pairs with plastic lock mechanism
 +  * E2000
 +
  
 Fiber polishing: Fiber polishing:
-  * APC (Angled Physical Contact) - face of fiber is filed by 8 or 9 degree. Less attentuation. (-70dB) Marking color: GREEN. +  * APC (Angled Physical Contact) - face of fiber is filed by 8 or 9 degree. Less attentuation. (-70dB) 
-  * UPC/PC (Ultra Physical Contact) - polished diagonally (-40dB). Marking color BLUE or beige.+    * Marking (plug) color: GREEN. 
 +  * UPC/PC (Ultra Physical Contact) - polished diagonally (-40dB).  
 +    * Marking (plug) color BLUE or BEIGE. 
 + 
 +===== Pigtails ===== 
 + 
 +End user: 
 +  * green rectangle plugs - FO SM SC/APC-SC/APC SIMPLEX
  
 +End user (Orange):
 +  * green rectangle plugs and yellow cable - single mode, APC polishing