6. Synchronization
1. The proposed equipment shall be able to accept synchronization from one of a number of sources:
− Uplink interface such as Ethernet interface or TDM interface
− BITS input
− Internal clock and the accuracy must comply with stratum -3
− 1588V2 synchronization over any media: GPON, Ethernet, DSL
− 1588 ACR synchronization over any media: GPON, Ethernet,
2. The tenderer shall state the number of synchronization sources that may be configured on the proposed equipment and the default clock setting mode.
3. The OLT must be able to use a free running clock with 5 ppm accuracy when all other available input clocks are lost.
4. The OLT must support IPPS+TOD time input.
5. The OLT must support NTP over IPv6