To support wireless base station applications, the CorEdge Networks CEN-CLK-G GPS clock provides a local 30.72MHz clock synchronized and phase-aligned to a 1PPS clock source. In the event of failure of the GPS 1PPS clock, it can support a holdover 30.72MHz accurate clock as well as a 1PPS clock.
CEN-CLK-G is now available.
The CEN-CLK-G is an optional daughter card that mounts to the leading MicroTCA Carrier Hub (MCH) products from CorEdge Networks to support GPS clock based applications.
The CEN-CLK-G recovers a 1PPS signal from an external GPS clock source from the MCH front panel or MicroTCA backplane and drives/distributes this clock or a locally generated 30.72MHz clock to up to 12 AMCs. It provides extremely precise and reliable GPS clock synchronization using a temperature compensated voltage controlled crystal oscillator (TCVCXO) with a 30.72MHz center frequency and a stability of less than 5 parts per million (PPM). The module output can be a 1 PPS clock that is derived from the GPS satellite network and/or a phase controlled and aligned 30.72MHz clock from the 1 PPS input. In addition to the WiMAX clocks, the CEN-CLK-G card also has the ability to generate a spread-spectrum 100MHz PCI-Express fabric reference clock. The distribution of these clocks can be enabled or disabled through software control.
Because the CEN-CLK-G mounts to the CorEdge MCH, it removes the requirement to support an external clock card AMC; and as such, it enables developers to maximize the number of free AMC slots available in the MicroTCA system. The modular and dense packaging design of the CorEdge MCH supports the CEN-CLK-G with the “base” MCH and an additional MCH fabric module for fat-pipe switching.
The CEN-CLK-G clock will be sold as an option with the CorEdge Networks MCH (CEN-MCH) and different switch fabric modules. It is not being sold as a stand-alone product.