PBT8856
8x56G Bit Error Ratio Tester
With the rapid development of the network, more and more applications need more band support. 400G has become the demand for the upgrading and expansion of the backbone network. PBT8856 can support 8-channel PAM4 signal with parallel transmission, and has been widely used in 400G optical module and optical device test.
- Rich Pattern – Support PRBS7~31Q SSPRQ/JP03A/JP03B/LIN/Square wave /CJT/User Defined Pattern (64bits length)
- Bit error injection – Support bit error injection and input / output polarity switching
- Powerful data analysis – Flexible database management to assist R & D in-depth analysis of data
- FEC Analysis – Support KP4, KR4 FEC analysis, FEC margin test
Functions and advantages
FEC Simulation
PreBER/PostBER Measurement
Symbol Error Distribution
FEC Margin Test
Real-time data monitoring
Real-time bit error monitoring
Stay informed about emergencies during testing
Historical data query
Historical data query
Data storage local database
Call test records at any time
| Output Type | Difference PAM4/NRZ |
| Termination | Differential 100 Ω，Single-ended 50 Ω；AC-coupled |
| Data Pattern | PRBS 7/9/11/13/15/16/23/31, PRBS7~31Q； SSPRQ, JP03A, JP03B, LIN, Square wave, CJT, custom pattern (64 bits), etc. |
| Data symbol rate (Gbaud) | 20.625/24.33/25/25.78125/26.5625/27.89/27.95/28.05/28.125/28.2/28.9/29.6; |
| Frequency Accuracy (Typ) | ±50 ppm |
| Maximum output amplitude (differential) | >800 mVp-p① |
| >1200mVpp② | |
| Rise Time(20–80%)③ | <15ps |
| Fall Time(20–80%)③ | <15ps |
| Random Jitter(RJRMS)④ | <350fs |
| Connector | 2.92mm Female，50Ω |
| Received amplitude (differential)⑤ | 100mVpp~1200mVpp |
| Receive sensitivity⑥ | 100 mVp-p |
Notes：
① Net value of measurement on TX output, with default pre-emphasis/de-emphasis
② 30cm RF test cable, output measured value in “high power output” mode
③ Measured with 26.5625 Gbps NRZ signal
④ Measured after jitter separation
⑤ Net value measurement on RX port
⑥ BER might reach to E-3 level or even LOS while input signal <100 mVp-p