32xE1 Service Processing Board

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PN: 03030ESK Category:
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Software Compatibility

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Software compatibility test between active/standby system board, main control board and service board, mother/sub-card; system commissioning test to prevent all software conflicts.

Huawei OSN 3500 System Test Procedure
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32xE1 Service Processing Board

Working with 1*D12S to transmit/receive and process 32xE1 signals.

Supports E13 function and the board version replacement function.

Can replace the SSR1PD1B.

Processes E1 signals processes overhead bytes reports alarms and performance events.

Provides maintenance features and supports the TPS protection.

Supports transparent transmission and termination of the path overheads at the VC-12 level such as J2 byte.

Supports inloops and outloops at electrical interfaces.

Supports warm resets and cold resets.The warm reset does not affect services.

Supports the query of the manufacturing information of the board.

Supports the in-service loading of the FPGA.

Supports the upgrade of the board software without affecting services.

Supports PRBS test in the tributary direction and in the cross-connect direction in normal mode or MUX mode.

Does not support the PRBS test in the Server mode.

Supports the TPS protection when working with the electrical switching and bringing board.


SSR2PD1B is a 32xE1 processing service processing board, can be used on Huawei OSN 1500B, OSN 2500. SSR2PD1B part number is 03030ESK, model name is SSR2PD1B01. SSR2PD1B doesn’t have interface on board front panel, it must work with 1 pieces of D12S 120ohm E1 interface board.

Tech Specs
Front Panel
The front panel of the SSR2PD1B has indicators.


Valid Slot
OSN 1500B: The SSR2PD1B can be installed in slots 1–3, 6–8, and 11–13.

OSN 2500: The SSR2PD1B can be installed in any of slots 5–7, 19–21.

Feature Code
The number code that follows the board name in the bar code is the feature code of the board. The feature code of the PD1 indicates the type of interface impedance.
Board Feature Code Type of Interface Impedance
SSR2PD1B01 B01 120-ohm
Optical Interface Parameter
The D75S, D12S, or D12B provides electrical interfaces for the PD1. For the parameters specified for the electrical interfaces, see Technical Specifications of the D12S, Technical Specifications of the D75S and Technical Specifications of the D12B.
Mechanical Specifications
Dimensions (mm) 25.4 (W) x 220 (D) x 111.8 (H)
Weight (kg) 0.6


Additional information
Weight 2.0 kg
Dimensions 34.0 × 25.3 × 9.4 cm

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Q: What’s the difference between different functional versions?

A: The PD1 is available in R1 and R2 version, R1PD1 is discontinued. Differences are as below:

R1 R2
E13 function Not supported Supported
CRC function Not supported Supported


Q: What’s the difference between D75S and D12S?

A: D75S and D12S are E1 interface boards for R1PD1, D75S is 75ohm, D12S is 120ohm.


Q: Can I use 120ohm cable connect on D75S?

A: No, you can’t, if you use 120ohm cable, please choose D12S interface board. To avoid incompatibility, please tell sales team your resistance.


Q: Does D75S /D12S come together with R2PD1 board?

A: Yes, D75S / D12S price is inclusive in R2PD1 board.


Q: Does E1 cable comes together with R2PD1 board?

A: No, you need purchase separately. To avoid incompatibility, please tell us your resistance.


Q: How many E1 cable do I need?

A: R2PD1 E1 cable is 8*E1 per PCS, you need 4PCS per each R2PD1 board; length is 3m, 5m, 10m as per your needs. But in normally condition, 5 meter per each is enough.


Q: How could I do, if I have R2PD1+D75S, but my DDF is 120ohm?

A: You may choose a 75ohm/120ohm converter, it looks like a DDF panel, can fix on your DDF rack to convert 75ohm to 120ohm.


Q: Can I return/exchange board if not compatible with my system?

A: Yes, please tell our sales team your system and main control board version, before your purchase.


Q: The board is new or refurbished?

A: Yes, it is original new, not been used.


Q: What is the lead time for SSR2PD1B board?

A: In normal condition is 5 days, better to confirm with our sales team before your purchase.

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