PID

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The photonics integrated device (PID) feature integrates conventional optical conversion units and MUX/DEMUX units into a PID board. It achieves high integration.

Other related questions:
PID
The photonics integrated device (PID) feature integrates conventional optical conversion units and MUX/DEMUX units into a PID board. It achieves high integration.

Whether the RI port sensitivity of the PID board can be queried
The module of the RI port on the PID board is a passive red/blue band filter. The RI port is only a logical optical port connected to an optical fiber. The receive wavelengths (12+8) on the RI port are processed by the red/blue band filter, and then arrive on the 12 independent physical optical ports of a blue-band PID board and the 8 independent physical optical ports of a red-band PID board. TO/RI, T01/R01, and T02/R02 ports are only logical optical ports for fiber connections. For logical optical ports, the sensitivity indicator is unnecessary. Therefore, the transmit/receive optical power reported by such boards are only logically calculated values.

Differences between a network with PID networking using OA boards and a common network
For common networking without PID boards, connecting the built-in VOAs on OA boards is not mandatory. For PID board networking, however, the built-in VOAs on OA boards must be connected because PID boards are commissioning-free and the VOAs need to be automatically adjusted to ensure that the output optical power satisfies requirements.

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