, () , , , . "", . , , . , . , - .
1 -
2 -
3 -
4 - 900
: (singlemode) (miltitmode). . 8,3/125 , - 62,5/125 . . , , , . , , , , , (LED, 1ight-emitting diode), . 50 . , , . , , , . , , , .
ST- (straighttip, ). - , . . SC- (subscritberconnector). . SC- , ( "Push-Pull") . : , . , 100 $, 1000 $.