TELNET GPONDoctor 9500, User Manual

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GPONDoctor 9500
User manual
200080279-00 GPON DOCTOR 9500 user manual EN v0 WEB
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2.2 Connection to an Intermediate Physical Point of the PON Network
The GPON Doctor™ can connect to any physical point in a PON network and extract
information from both communication data flows (Downstream and Upstream). As shown
in Figure 8, the GPON Doctor™ can be placed in any intermediate point within a PON
network.
Figure 8 Connection to an intermediate point within a PON network.
Connecting the GPON Doctor™ to a PON intermediate point involves the following
stages:

Upstream/Downstream signal reception power measurement/inference at the
target capture point.

Calculation of the attenuation required for the capture card inputs.

Addition of the necessary attenuators (if needed).

Connection of the optical splitter to the fibres.
Optical power budget measurement
The objective of this first step is to calculate the optical power level at the PON inputs
of the external splitter. This process is specific to each direction of the communication.

Power in Downstream direction: The value is obtained by using a PON power
meter or by inferring the theoretical attenuation up to the physical capture point.

Power in Upstream direction: The estimation of this value is complex as each ONT
transmission is done at a different power and in “Bursts”.