PON Power Meter (PPM-350B)

The industry's first PON-specific power meter, the PPM-350B is the flagship of EXFO's line of test instruments specifically intended for FTTH and FTTP systems. Available in four models, the PPM-351B, PPM-352B, PPM-352B-EG and PPM-352B-EG-ER, it is the ideal tool for FTTH/FTTP service activation and troubleshooting.

Service Activation Testing
Optimizing network reliability requires that all PON signals be measured all the way through service activation to ensure they meet established standards. The PPM-350B offers the features to address this need: Pass-through connection for ONT signal measurement and simultaneous measurement of all PON signals;
Filtered detectors for individual measurement of each wavelength;
And upstream burst detection at 1310 nm.

Troubleshooting Testing
Throughout the maintenance phase, various transmission problems_fiber cuts, damaged/dirty connectors, macrobendings, optical transmitter failure, etc. _may ultimately cause signal loss or degradation. Benefit from the PPM-350B's troubleshooting functionalities, such as quick, on-site test and measurement of PON signals anywhere on the network, as well as fault identification and isolation.

Upstream Burst Detection_Not To Be Taken Lightly
Correctly measuring PON signals can be a challenging task: Not only can a single fiber carry up to three signals, but the upstream signal coming from the ONT operates in burst mode, which means that it is only active during its "allowed" timeslot. This is true whether the network is based on the BPON, EPON or GPON technology.

Moreover, the timeslot is shorter in higher-speed networks such as EPON and GPON. Designed with this in mind, the PPM-350B PON Power Meter delivers accurate results for burst signals.

Groundbreaking Technology_Two-Port Pass-Through*
The PPM-352B two-port model acts as a pass-through device, which means that it is connected between the OLT and the ONT. A small percentage of the signal is extracted for use by the power meter's detectors.

This approach enables all wavelengths to be used simultaneously. Also, since the PON equipment can keep functioning normally, the ONT continues to operate (to respond to the OLT), and therefore to transmit and have its laser on.

*Protected by US patent no. 7, 187, 861, German Utility Patent no. 20 2004 021 208.0, and subject of several pending national entries in other countries under the Patent Cooperation Treaty.

Up to 10 User-Definable Threshold Sets
Depending on the location of the test and the type of equipment used, different threshold values can be required. The PPM-350B enables you to select from up to 10 threshold sets_each set consisting of three wavelengths (1310, 1490 and 1550 nm) having their own pass, warning and fail thresholds. These values can be configured via the HHDT PC-based software.

An FTTx Test Solution
This product is part of EXFO's series of FTTx optical test products. It allows for the testing of passive optical networks (PONs) at the three main wavelengths (1310, 1490 and 1550 nm) used in fiber-to-the-home (FTTH) and fiber-to-the-premises (FTTP) networks and complies with the ITU-T G. 983 and G. 984 Recommendation series and the IEEE 802.3ah standard.