Viavi (Aeroflex IFR)
Acterna JDSU EST-125
Multipurpose Field Service Tester
E1 (2 Mbit/s) Interface Type
2.048 Mbit/s Test Rate
Unframed, PCM30, PCM30CRC, PCM31, PCM31CRC Framing Formats
Single, 1E-3, 1E-4, 1E-5, 1E-6, 1E-7 BER Error Insertion
PRBS 2^9-1, 2^11-1, 2^15-1, 2^20-1, 2^23-1, All Ones, All Zeros, Alternating Test Patterns

| Attribute | Value |
|---|---|
| Interface Type | E1 (2 Mbit/s) |
| Test Rate | 2.048 Mbit/s |
| Framing Formats | Unframed, PCM30, PCM30CRC, PCM31, PCM31CRC |
| Error Insertion | Single, 1E-3, 1E-4, 1E-5, 1E-6, 1E-7 BER |
| Test Patterns | PRBS 2^9-1, 2^11-1, 2^15-1, 2^20-1, 2^23-1, All Ones, All Zeros, Alternating |
| Measurements | BER, Frame Errors, CRC Errors, Slip Errors, Alarm Detection (AIS, LOF, LOS) |
| Impedance | 75 Ohm unbalanced / 120 Ohm balanced |
| Power Supply | 9V DC via battery or external adapter |
| Display | LCD with backlight for results and status indication |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
Acterna JDSU EST-125 Options:
- EST-125 - BN4562/26 - EST Gold Package (Includes EST-125 with M.2100, G.826, extended PRBS, Pulse Shape Analysis with Level Measurement and Jitter options)
- EST-125 - BN4562/00.11 - French S/C bits software option
- EST-125 - BN4562/00.14 - X.50 software option
- EST-125 - BN4562/00.15 - GSM software option
- EST-125 - BN4562/00.19 - Large Frequency Offset software option
- EST-125 - BN4562/00.20 - All 1's/All 0's histogram software option
- EST-125 - BN4562/00.23 - Noise Measurement software option
- EST-125 - BN4562/00.28 - V Interface Status Monitor software option
- EST-125 - BN4562/00.32 - V.110 software option
- EST-125 - BN4562/00.38 - HCM software option
- EST-125 - BN4562/00.41 - Frame Relay software option
- EST-125 - BN4562/00.42 - Jitter software option
- EST-125 - BN4562/00.44 - Datacom software option
- EST-125 - BN4562/00.48 - V delay software option
- EST-125 - BN4562/00.52 - E1 Level Measurement software option
- EST-125 - BN4562/00.56 - E1 Pulse Shape Analysis software option
| Model | EST-125 |
|---|
The Acterna JDSU EST-125 is a portable Ethernet test set optimized for validating next-generation network services. It measures latency, jitter, and throughput with precision while its rugged design ensures durability in demanding environments.
Ideal for field technicians, it simplifies troubleshooting, enables end-to-end service verification, and helps providers maintain strict service-level agreements through accurate performance insights.
Testwall can supply the used Acterna JDSU EST-125, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Acterna JDSU EST-125.





