PBT8812/PBT4412/PBT8812B
112Gbps/ch Bit Error Ratio Tester
Semight 112Gbps/Ch Bit Error Ratio Tester PBT8812/PBT4412/PBT8812B is a high-performance bit error ratio tester (BERT) applied to high-speed serial signal error rate test, which can be used for physical layer characterization and consistency test. It covers emerging 200/400/800GbE and CEI-112G standards by virtue of support for 4-level pulse amplitude modulation (PAM4) signals with up to 57 Gbaud symbol rate (equivalent to 112Gbit/s), as well as non-return-to-zero (NRZ) signals.
- Hardware FEC – Supports protocol-compliant hardware FEC analysis
- Rich pattern – Support PRBS7~31Q SSPRQ/JP03A/JP03B/LIN/Square wave/CJT/user-defined patterns etc.
- Link compensation – Supports 64-order CTLE receiver equalization, Supports de-emphasis in 3rd/7th order mode
- Error injection – Support error injection and input and output polarity switching
Functions and Benefits
Real FEC Analysis
SNR Monitor
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
Data store local database
Call test records at any time
Technical Specifications
*SSPRQ Pattern @ 53.125 Gbaud, differential eye diagram @ Keysight DCA 1092C
Default: PBT8812 ▷ PBT8812 only ※ PBT8812B only ◥ sFEC option only
| Pattern Generator | Output type | PAM4/NRZ |
| Termination | Differential; AC-coupled; | |
| Test Pattern | PRBS 7/9/11/13/15/16▷/23/31;
PRBS 7Q/9Q/11Q/13Q/15Q/16Q▷/23Q/31Q; |
|
| SSPRQ, JP03A/JP03B▷, LIN▷, Square Wave▷; | ||
| User Defined Pattern (32bits※ / 64bits▷) | ||
| Symbol rate (Gbaud) | 24.33/24.8832/25/25.78125/26.5625/27.89/27.95/
28.05/28.125/28.2/28.9/30▷； ① 48.66/49.7664/51.5625/53.125/56/56.25/56.4/57.8; |
|
| Frequency accuracy (Typical) | ±50 ppm | |
| Maximum output amplitude (differential)② | 650 mVp-p / 1000 mVp-p※ | |
| Rise time (20%–80%)③ | <10 ps | |
| Fall time (20%–80%)③ | <10 ps | |
| Data output RMS jitter | <250 fs | |
| Connector | 1.85 mm female, 50 Ω |
① Optional.
② Net measured value at PG port.
③ Measured with 56.25Gbps NRZ signal.
Default: PBT8812 ▷ PBT8812 only ※ PBT8812B only ◥ sFEC option only
| Trigger Output | Output amplitude | >300 mVp-p |
| Output type | AC-coupled, Single-ended | |
| Frequency division ratio | 4/8/16/32 | |
| Connector | 2.92 mm female, 50Ω | |
|
Error Detector |
Input type | Differential PAM4/NRZ |
| Termination | Differential; AC-coupled; | |
| Amplitude (differential)① | 650 mVp-p▷◥ / 1000 mVp-p※ | |
| Sensitivity (differential)② | 100 mVp-p▷◥ / 300 mVp-p※ | |
| Data patterns | PRBS 7/9/11/13/15/16▷/23/31;
PRBS 7Q/9Q/11Q/13Q/15Q/16Q▷/23Q/31Q; |
|
| Symbol rate (Gbaud) | 24.33/24.8832/25/25.78125/26.5625/27.89/27.95/
28.05/28.125/28.2/28.9/30▷◥；③ 48.66/49.7664/51.5625/53.125/56/56.25/56.4/57.8; |
|
| SNR indicator | Built-in | |
| Synchronization type | Auto Synchronization (level/phase) | |
| Connector | 1.85 mm female, 50 Ω |
① Net measured at Rx port.
② BER might reach to E-3 level or even LOS while input signal less than sensitivity threshold.
③ Optional.