PBT8812/PBT8812B
PBT8812/PBT8812B
800G Bit Error Ratio Tester
Semight PBT8812/PBT8812B is a high-performance Bit Error Ratio Tester (BERT) which can be used for physical layer characterization and consistency test. It covers 400/800 GbE and CEI-112G standards by virtue of support for 4-level pulse amplitude modulation (PAM4) and non-return-to-zero (NRZ) signals.
Features
Data Rate
Range: 24.33~57.8 GBaud
High-precision
Supports ultra-fast and high-precision BER sampling (<10ms).
Each channel can be independently configured with NRZ/PAM4, amplitude and equalization
Error Injection
Supports error injection and input and output polarity switching
Link Compensation
Provides 3/4/7-tap FIR tuner,
and Inner-Eye tuner with independent control on each PAM4 level
Various Patterns
PRBS7~31Q; SSPRQ /JP03A /JP03B /LIN /Square Wave/Custom Defined Patterns, etc
Comprehensive Capabilities
PCS layer of RS-FEC analyzer with Pre/Post BER statistic and Margin alarm.
Supports Histogram & SNR measurement
Excellent Signal Quality
Rapid rise and fall time;
low intrinsic jitter.
Good RX sensitivity <100mV
Fully Match ATE Application Scenarios
Powerful and flexible database management capabilities.
Supports multiple ATE hosts
Functions and Advantages
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 Specification
TX specification
| Type | Item | PBT8812/8812B |
| Pattern Generator | Output | Differential/ Single-ended PAM4 / NRZ |
| Terminal | AC Coupling, 1.85 mm female connector | |
| Impedance | 100 Ω ± 10% | |
| Test Patterns | PRBS9/11/13/15/16/23/31, PRBS9Q/11Q/13Q/15Q/16Q/23Q/31Q, SSPRQ, JP03A, JP03B, LIN, Square Wave, Custom Defined Pattern |
|
| Symbol Date Rate[1] (GBaud) |
24.33/24.8832/25/25.78125/26.5625/27.89/27.95/28.05/28.125/28.2/28.9/ 48.66/49.7664/50/50.135/51.5625/53.125/56/56.25/56.4/57.8 |
|
| Frequence Accuracy | ±1400 PPM（1 PPM Step） | |
| Output Amplitude
(Differential) |
1000 mVp-p | |
| Rise Time[2]
(20–80%) |
<10 ps | |
| Fall Time[2] (20–80%) |
<10 ps | |
| Random Jitter | <350 fs | |
| Insertion Loss | 1.48 dB @ 28GHz (Odd Channel) 2.78 dB @ 28GHz (Even Channel) |
|
| Return Loss | ≤-13.6 dB @ ≤28GHz | |
| MON CLK[3] | Clock Output Amplitude | >300mVp-p |
| Output Type | AC coupled, Single-ended | |
| Div Ratio[3] | 4/8/16/32 | |
| Connector | MXPD/SMPS |
[1] Expansion rate requires activation of the EDR option
[2] Measured with 53.125 Gbps NRZ signal
[3] Extended frequency division ratio options require activation of the TRIG option
RX specification
| Type | Item | PBT8812/8812B |
| Pattern Generator | Input | Differential PAM4 / NRZ |
| Terminal | AC Coupling | |
| Impedance | 100 Ω+/- 10% | |
| Input Range[1] (Differential) | Max.1000 mVp-p | |
| Sensitivity[2] (Differential) | 80 mVp-p | |
| Test Patterns | PRBS7/9/11/13/15/23/31 PRBS7Q/9Q/11Q/13Q/15Q/23Q/31Q, SSPRQ |
|
| Symbol rate[3] (Gbaud) |
24.33/24.8832/25/25.78125/26.5625/27.89/27.95/28.05/28.125/28.2/28.9/ 48.66/49.7664/50/51.5625/53.125/56/56.25/56.4/57.8 |
|
| Clock Mode | Built-in Clock Recovery (Loop bandwidth:4MHz) | |
| Connector | 1.85 mm female, 50Ω |
[1] Net measurement value at the receiving end; Excessively high voltage input may damage the receiver
[2] When the input amplitude is less than the sensitivity threshold, the corresponding bit error rate may be higher than e-3 or even LOS, depending on the specific signal quality
[3] Extended rate requires activation of the EDR option