OSN3500 SSN1D75S single board is used for input and output of 32-channel E1 electrical signals, which should be used together with PQ1 single board, and is applied in Huabu OSN series equipment to provide signal input and output interfaces for PDH processing boards.
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Huawei SDH Optical Switch OSN3500 D75S Technical Parameters Description
Optix OSN3500 SSN1D75S processing board appearance
SSN1D75S pluggable slots
Table 1 Corresponding slots of the PQ1 single board and the D75S single board
The D75S veneer board can be used as an interface board for the PQ1 veneer board.
The D75S single board can be inserted in slots 19 to 26 and slots 29 to 36 of the main subrack.
The slots of the PQ1 single board and the corresponding slots of the D75S single board are shown in Table 1. The D75S with a small slot number accesses the 1st to 32nd E1 electrical signals, and the D75S with a large slot number accesses the 33rd to 63rd E1 electrical signals.
| Slots of PQ1 single board | Corresponding slot of D75S board |
|---|---|
| Slot 2 | Slot 19, 20 |
| Slot 3 | Slot 21, 22 |
| Slot 4 | Slot 23, 24 |
| Slot 5 | slot 25, 26 |
| Slot 13 | slot 29, 30 |
| slot 14 | slot 31, 32 |
| slot 15 | slot 33, 34 |
| Slot 16 | Slot 35, 36 |
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