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Burst Mode Bit Error Ratio Tester

rBT1250

10G Burst Mode Bit Error Ratio Tester


Semight rBT1250 is specially designed for optical line terminal (OLT) test of passive optical network (PON) applications, and supports 1.25G EPON, GPON, 2.5G XGPON, Combo PON, 10G EPON and 10G XGSPON burst bit error testing and analysis.


Features

  • High Compatibility

    Supports various PON OLT rates of 10.3125 Gbps and below
  • Burst Test of Combo-PON

    Dual reset signal, supports Combo-PON test
  • SD Test

    Individual LOS monitoring/SD monitoring/LOS judgment for each channel
  • Built-in Clock Recovery

    It can work in a real long-fiber environment, avoiding the influence of long-fiber on delay and jitter

Functions and Advantages

  • Burst Test of Combo-PON


    Dual reset signal, the reset position is adjustable (Combo-PON must have 2 reset signals)
  • Double Packet Test

    Each data packet has different attenuation, there are jumps between the phases of different data packets, and there are long consecutive "1" and "0" in the data packet.
    Need to simulate the worst 2 ONU signal generation.
  • Built-in Clock Recovery, Supports Long Fiber Test

    The built-in clock recovery enables the rBT1250 to work in a real long-fiber working environment, which is basically impossible in other solutions commonly used in the industry, because those systems do not support clock recovery,It cannot adapt to the influence of long fiber on delay and jitter.

TX Specification


Type

Item

Description

Pattern Generator Specification

Output

Differential/Single-ended NRZ

Terminal

AC Coupling

Output Impedance

100 Ω ± 10%

Pattern

PRBS7, 23, 31, Custom Defined Pattern and CID

Burst Signal Rate (Gbps) [1]

1.25/2.5/9.953/10.3125

Pre-emphasis

3-taps

Output Amplitude (differential)

100-600mVpp (typical) [2]

Rise Time [3]

(20–80%)

<40ps (typical)

Fall Time [3]

(20–80%)

<40ps (typical)

Peak to Peak Jitter [4] 

<12ps (typical)

Laser Enable(TXEN)

LVTTL 3.3V 

Reset Signal

LVTTL 3.3V, Adjustable voltage level,  trigger position, and width

Connector

SMA


Trigger and Clock Specification

Clock Output Amplitude

>250 mVp-p

Output Type

AC Coupled, Single-ended

Div Ratio (Adjustable)

64

[1]Compliant with EPON and GPON speeds

[2]Net measurement value at the transmitter's end, default pre-emphasis/de-emphasis parameters

[3]Measured with10.3125 Gbps NRZ signal

[4]Tested with/after Jitter separation



RX Specification


Type

Item

Description

Error Detector Specification

Input

Differential NRZ

Terminal

AC Coupled

Input Impedance

100 Ω ±10%

Input Range (Differential) [1]

100 ~ 800mVp-p (typical)

RSSI (Differential) [1]

100mVp-p (typical)

Pattern

PRBS7, 23, 31, CID

Symbol Rate (Gbaud) [2] 

1.25/2.5/9.953/10.3125

Clock Mode

Built-in Clock Recovery

Connector

SMA

[1]Take care of output amplitude from DUT as the high voltage signal may damage the receiver

[2]Compliant with EPON and GPON speeds.

Document Download

Product
Version
Release Time
Download
  • rBT1250 X-PON User Manual
    V7.0
    2022-07-20
    Click to Download

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