APC Passive Optical Network Power Meter for BPON/EPON/GPON (PON-55)

Ships direct from the manufacturer. Please allow up to 10 business days, though it often ships sooner.

A PON carries three signals on one fiber at once, 1490 nm and 1550 nm down from the OLT and 1310 nm back up from the ONT in bursts, and an ordinary power meter reads them as one number. The Jonard Tools PON-55 reads them separately and at the same time: inserted in line anywhere in a BPON, EPON, or GPON network, it measures the downstream voice, data, and video signals and the upstream burst together, on a live circuit with the OLT running, which is the measurement a service turn-up or a maintenance call needs. Three LEDs show pass, warning, or fail against thresholds you set from the included PC software, so a technician at the ONT can see whether the drop is in spec without reading numbers. It stores up to 1,000 measurements and transfers them over USB, runs 90 hours on three AA batteries, and comes in a shatter-resistant sleeve with APC FC and SC adapters, a carrying case, a mini USB cable, and the batteries.

Features

• Live testing with the OLT running. Measures a working PON in service, during FTTx turn-up or maintenance, without taking the circuit down.
• Three wavelengths at once. Concurrent measurement of the 1310 nm upstream burst signal and the 1490 nm and 1550 nm downstream signals, anywhere in the network.
• BPON, EPON, and GPON. Analyzes the voice, data, and video signals in FTTx systems of all three types.
• Pass, warning, and fail LEDs. Three indicators show the power level against your thresholds at a glance.
• APC FC and SC adapters. Two of each included, for the APC connectors standard on PON drops.
• USB and 1,000-record memory. Saves up to 1,000 measurements and transfers them to a PC over USB.
• PC software included. Sets the thresholds, transfers data, and calibrates the wavelength from a computer.
• Field ready. Shatter-resistant sleeve against drops, 90 hours on three AA batteries, and a 10-minute auto-off you can switch on or off.

Where It Fits

It suits FTTH and FTTx technicians turning up a new ONT who need to prove the downstream levels and the upstream burst before closing the ticket, ISP and telco maintenance crews troubleshooting a slow or dropping PON customer, PON construction teams verifying splitter outputs and drop losses as the network is built, contractors who have to hand over documented power readings at every premises, and anyone who has tried to diagnose a PON with a general-purpose meter and found the one number it gives doesn't answer the question.

Good to Know

The meter goes in line: the OLT side connects to one port and the ONT side to the other, so the downstream signals pass through to the ONT and the upstream burst from the ONT passes back, and the meter reads all three as they go by. That's why it can test a live circuit, and it's also why it has a maximum input, listed as 15 dBm; an amplified video overlay at 1550 nm can run hot, so check the level before you insert the meter on an unknown link. Set the thresholds in the PC software to your operator's limits for the PON type before the first job, since the LEDs only mean something against the right numbers; a GPON ONT typically wants somewhere above −27 dBm at 1490 nm, but the operator's spec is the one that counts. The adapters are APC, matching the APC connectors on nearly every PON drop; keep APC and UPC apart, since mating the two damages the end face and ruins the reading. Clean every connector before every mating, including the meter's ports, because a dirty connector reads as low power and sends you looking for a fault that isn't there. A reading at the ONT that fails at 1490 but passes at 1550, or the reverse, points at a wavelength-specific problem such as a filter or a splitter, not a dirty connector. The 1310 nm upstream only appears when the ONT is transmitting, so a dark upstream on a new install can mean the ONT hasn't ranged yet rather than a broken fiber. Store a reading at each premises; the 1,000-record memory and USB export are what turn a day of installs into the documentation the operator asks for. Never look into a fiber or a port on a live PON; the light is infrared and the downstream can be strong.

Specifications

Documentation