Functional Description
24
AM4904 User Guide
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• Zarlink ZL30143 SyncE 10GE/GE/SONET/SDH G.8262/Stratum 3 System Synchronizer/Sets PLL
• Stratum 3 Accuracy
• Long Term Accuracy (20 years): ±4.6 ppm
• Short Term Stability (24 hours): ±0.37 ppm
• Frequency Drift Rate: ±4.63x10e-13
• SONET/SDH/PDH System Timing Module
• Input references from BITS input, other MCH or AMC
• 1 PPS
• 2 KHz
• 8 KHz, and multiple of 8 kHz up to 77.76MHz
• 1.544 MHz
• 2.048 MHz
• 8.192 MHz
• 16.384 MHz
• 19.44 MHz
• 25 MHz
• 62.5 MHz
• 125 MHz
• 155.52 MHz
• 10 MHz
• Input reference monitoring for frequency and phase irregularities
• Output frequencies 8kHz, 1.544MHz, 2.048MHz, 19.44MHz and multiples of 8kHz up to 100MHz
• Hardware quality level of GR-1244 Stratum 3
• Module supports free-run, hold-over and phase-locked
• Meets jitter, wander, holdover and other performance specifications detailed in Telecordia GR-
253-CORE (SONET) or ITU-T G.813 (SDH)
• The input voltage range is from 0V to 5V with a minimum input level of 300mVpp. The input is AC
coupled
• The SMA input is terminated with 50 Ohm
• Synchronous Ethernet System Timing Module
• Synchronizes to 25MHz, recovered clock from local front-uplink Ethernet PHYs
• Transmits 25MHZ to local PHYs and switch silicon reference clock
• G.8262
2.6 Board Interfaces
The AM4904 has following front panel interfaces:
• 10/100Base-T Management Port with LEDs
• Serial RS232 Interface
• BITS Clock Input (CLK)
• Dual 10/100/1000Base-T Uplink (GbE1, GbE2) with LEDs
Содержание AM4904
Страница 19: ...1KTC5520 EATX Chapter 1 Introduction www kontron com...
Страница 24: ...6KTC5520 EATX Chapter 2 Functional Description www kontron com...
Страница 65: ...47KTC5520 EATX Chapter 3 Operating the Unit www kontron com...
Страница 104: ...85KTC5520 EATX Chapter 4 Hardware Installation www kontron com...
Страница 109: ...90KTC5520 EATX Chapter 5 Power Considerations www kontron com...
Страница 113: ...Chapter 6 Thermal Considerations www kontron com...
Страница 121: ...1 Appendix A CM Configuration Options www kontron com...
Страница 128: ...1 Appendix B Getting Help www kontron com...
Страница 131: ...1KTC5520 EATX Appendix C Glossary www kontron com...