This section explains the function and distinguishing attributes of photodiode monitors used in optical power devices.
Photodiode monitors are optical power devices that
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detect optical signal levels on device input and output ports,
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provide real-time feedback for system calibration and performance, and
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may incorporate tone-detection for advanced signal identification.
Calibrated port references for NCS 1000 passive modules
The tables specify port calibration details for different passive modules.
| Photodiode |
Port calibrated |
Port label (Direction) |
Minimum power |
Maximum power |
Dynamic range |
|---|---|---|---|---|---|
| PD 1 to PD 8 |
MPO-16 input ports |
0 to 7 (TX) |
–20 |
10 |
30 |
| PD 9 to PD 16 |
MPO-16 output ports |
0 to 7 (RX) |
–20 |
10 |
30 |
| PD 17 |
MPO input fiber 1 |
COM |
–30 |
10 |
40 |
| Photodiode |
Port calibrated |
Port label (Direction) |
Minimum power |
Maximum power |
Dynamic range |
|---|---|---|---|---|---|
| PD 1 to PD 8 |
MPO-16 input ports |
0 to 23 (TX) |
–20 |
10 |
30 |
| PD 9 to PD 11 | MPO-16 output ports |
0 to 2 (RX) |
–20 |
10 |
30 |
| PD 12 to PD 14 |
3 to 5 (RX) |
||||
| PD 15 to PD 17 |
6 to 8 (RX) |
||||
| PD 18 to PD 20 |
9 to 11 (RX) |
||||
| PD 21 to PD 23 |
12 to 14 (RX) |
||||
| PD 24 to PD 26 |
15 to 17 (RX) |
||||
| PD 27 to PD 29 |
18 to 20 (RX) |
||||
| PD 30 to PD 32 |
21 to 23 (RX) |
||||
| PD 33 | MPO input fiber 1 |
COM |
–30 |
10 |
40 |
| Photodiode |
Port calibrated |
Port label (Direction) |
Minimum power |
Maximum power |
Dynamic range |
|---|---|---|---|---|---|
| PD 1 to PD 32 |
32 LC input ports |
0 to 31 (RX) |
–30 |
10 |
40 |
| PD 33 |
COM-RX |
COM (RX) |
–10 |
23 |
33 |
| PD 34 |
COM-TX |
COM (TX) |
–35.5 |
20 |
55.5 |
| PD 35 |
COM-RX |
COM (TX) |
–40 |
0 |
40 |
| PD 361 |
COM-RX |
COM (RX) |
–24 |
5 |
30 |