Concatenation Options ANT-20/ANT-20ES-14 Specifications OC-12c/STM-4c2 Receiver section2.1 Digital signal inputs2.1.1 Signal input [17], opticalThe receiver meets the requirements of ITU-T G.957 Classes S1.1, S1.2, S4.1, S4.2 and S4.3.Tolerance to jittermeasured using scrambled SDH or SONET signals:Fig. S-2 Jitter amplitude versus jitter frequencyConnector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 mm (PC)Fiber to fiber” test adapter for connecting various2.5 mm plug connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see list of accessoriesInput sensitivityOC-12c / STM-4c *** . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8 to -28 dBmMax. permissible input level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+2 dBmWavelength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1100 to 1580 nmf 2 f3 Jitter frequencyJitter amplitudef 4A1A220 dB / decadeBit rateMbit/sA1UIppf 2kHzA2UIppf 3kHzf 4kHz51.840 1.5 2 0.15 20 500155.520 1.5 6.5 0.15 65 1300622.080 1.5 25 0.15 250 5000Table S-9 ANT-20 tolerance to jitter at system bit rates