PPG Management
PON protection is implemented between two OLTs and will provide full redundancy of all OLT hardware, uplinks and PONs. PPG protection makes use of a 2:N splitter which allows two inputs on the OLT side of the circuit (OLT to splitter side). From the splitter to the ONT is a single fiber going to each of the ONTs on the PON. This gives both equipment and facility protection for the OLT side of the PON. With PPG Protection, one can accomplish OLT PON fiber path redundancy.
When PPG protection is implemented between two OLTs, it will provide full redundancy of all OLT hardware, uplinks and PON. This is the preferred configuration for reliability reasons and is the option recommended by Tellabs.
PPG protection consists of two OLT systems, A primary and a secondary. These OLT systems should be in two separate locations with their own independent power supplies. This will protect us from any hardware/software or facility problems (i.e. Fire, water, power, etc.)