Model Name NW50M50LA/B Main Application SONET, SDH, FTTH, Co

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Model Name NW50M50LA/B Main Application SONET, SDH, FTTH, Co

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Frequency Timing Translation Modules
Model Name NW50M50LA/B
Main Application
SONET, SDH, FTTH, Communications equipment
Frequency Controlled Crystal Oscillator (FCXO) Stratum3 Module
Features
reference input frequencies steps from 77.76 MHz. Compliant with Telecordia GR1244CORE, GR253. Hit-less reference switching. Frequency ramp control during reference switching. Simple hardware control operational modes (Freerun, Locked Holdover) output signals: fixed kHz, selectable (see specifications) 77.76 MHz.
Module markings changed without notice.
Specifications
Item Supply Voltage (VCC) Current Consumption Operating Temp. Range Input Levels Input Reference Frequency (HMz) Output Levels Output Frequencies (MHz) Free-run accuracy bandwidth Model NW50M50LA
+5.0 TCXO version OCXO version turn Steady state +70°C 2-CMOS kHz, 1.544 MHz, 2.048 MHz, 12.96 MHz, 19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 77.76 CMOS outputs Sync Outputs: 12.96 MHz, 19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 77.76 max.
NW50M50LB
List Ordering Codes
Output frequency (MHz) Ordering Code ]-NSA3438A ]-NSA3438B NW50M50LA-[ Sync Output: selectable 77.76 NW50M50LB-[ Sync Output order. example, 19.44 case, NW50M50LA-19.44M-NSA3438A
Control Functions
CNTL CNTL Mode operation FREE-RUN Lock Lock Holdover
Dimensions
50.8±0.3 5.08±0.3
14.8max 1.6±0.1 5.08±0.3
Connection
Holdover REF1 REF2 FREE-RUN ALARM CNTL CNTL UNLOCK SYNC Sync
50.8±0.3
40.64±0.3
0.51±0.3
0.51±0.3 Detail
Detail
5.29±0.3
40.64±0.3
co35_080205_NW50M50LA&B_e1

Model Name NW50M50LA/B Main Application SONET, SDH, FTTH, Co

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