PXB4220E Infineon Technologies AG, PXB4220E Datasheet - Page 280

• Manufacturer Part Number: PXB4220E
• Description: Interworking Element for 8 E1/T1 Lines
• Manufacturer: Infineon Technologies AG

12.3
The adaptive clock method does not require information concerning the source clock
transferred over the ATM network. The speed of the transmitter is adjusted to the filling
level of the receive buffer. If the transmit clock is too slow, the buffer filling level will
increase causing the clock recovery circuit to slow down the transmit clock. If the
transmit clock is too fast the buffer filling level will decrease. In this case the clock
recovery circuit will increase the transmit clock.
Data Sheet
Adaptive Clock Method ACM
280
PXB 4219E, PXB 4220E, PXB 4221E
IWE8, V3.4
Appendix
2003-01-20