ST-2125 E1 Transmission Analyzer
ST2125 E1 Transmission Analyzer is a powerful handheld instrument, providing a scalable, future-proof solution for the testing needs of technicians involved in the installation and maintenance of E1 digital networks. It offers full-featured the error and alarm measurements you will need to verify quality-of-service in your networks. Plus, signal quality measurements including frequency, level, pulse shape, jitter and other functions ensure your costly, time-consuming work performed quickly and efficiently.
Basic Functions
- HDB3 and AMI line codes
- 75Ω (Unbalanced), 120Ω (Balanced) and high impedance line interfaces
- Out-of-service framed/unframed testing (“TX/RX” mode):
√2Mb/s, N×64kb/s BER testing √Monitoring: Signal Loss, AIS, Frame Loss, Remote Alarm, Remote MF Alarm, CRC MF Loss, CAS MF Loss, Pattern Loss alarms and BIT, Code, FAS、CRC-4、E-BIT errors √Clock slips measurement
- In-service framed/unframed testing (“RX HI-Z” and “Through” mode):
√Rx Hi-Z and through mode testing √Code, FAS, CRC-4 and E-BIT BER testing √FAS/NFAS, MFAS/NMFAS, timeslot activity monitoring √Timeslot data monitoring √Built-in 64kb/s tone channel listen capability √CAS and CCS signalling monitoring
- Round trip delay measurement
- APS delay measurement
- PCM simulator:
√Extensive alarm and error generation √Frame data Si, Sa, A, FAS, CRC-4, MFAS, NMFAS and E-BIT control and monitoring √Idle word timeslot insertion √VF tone generation and measurement √CAS and CCS signalling generation and monitoring
- Frequency and offset measurement
- Clock slips measurement
- Up to ±999 ppm transmit clock deviation
- Double E1 channels in-service monitoring Option1
√Double E1 channels Rx Hi-Z and through mode testing √Double E1 channels Code, FAS, CRC-4, E-BIT BER testing √Double E1 channels FAS/NFAS, CAS Multiframe, CCS timeslot 16 and timeslot activity monitoring √Double E1 channels timeslot data monitoring √Double E1 channels built-in 64kb/s tone channel listen capability √Double E1 channels CAS and CCS signalling monitoring
- Pulse mask measurement Option2
√Input E1 pulse shape display √Pulse width measurement √±Pulse width and amplitude ratio measurement √Rising edge and falling edge time measurement √Overshoot and undershoot ratio measurement √Pulse amplitude and level measurement
- Jitter measurement Option3
√Peak-peak jitter measurement √Jitter measurement comply with O.172 filter (18-100kHz) √Hit seconds and hit free seconds counts
- Level measurement Option4
√±Pulse level real-time measurement √Peak-peak pulse level measurement
- Transmit clock sourced from external clock or signal Option1
- Real-time transmit circuit open/short indication
- Autoconfigure function:
√E1 frame format auto-detection and autoconfiguration √BERT pattern auto-detection and autoconfiguration √The timeslots carried BERT pattern auto-detection and autoconfiguration
- Real-time clock
- BERT pattern: PRBS, Fixed Code, 16-BIT User Word
- Error injection: Single and Fixed Rate
- Reset the results to zero function
- Manual and auto-timer testing
- Self-check, keyboard and LED testing
- TU-T G.821, G.826 and M.2100 performance analysis
- Histograms analysis of error and alarm events
- Upgradeable embedded software via an RS232C interface
Main Features
- Handheld design and easy-to-use
- Full-featured measurements to E1 signals
- High resolution large backlit and contrast-adjustable LCD
- Smart navigation mode displays
- Extensive error and alarm generation, detection and indication
- Up to 6 hours operation from a single battery charge
- Up to 99 days continuance test performance
- Save/Recall of up to 10 user-defined setups and results
- Built-in NiMH rechargeable batteries and smart charger circuit
- Can be charged with automobile cigarette lighter battery adapter
- Test results could be uploaded, conserved by TestManagerPro
- The stored results could be output or printed with A4-szie report form, Excel and test files
Specifications
Item |
Descriptions
|
Internal Clock
|
2048Kb/s ± 10ppm
|
Frequency Deviation
|
±999ppm
|
Line Interfaces
|
75Ω (Unbalanced), 120Ω (Balanced); High Input Impedance >2KW
|
Line Code
|
HDB3, AMI
|
Framing
|
Unframed, PCM30, PCM30CRC, PCM31, PCM31CRC
|
Receive Sensitivity
|
> -43dB
|
Tx Clock Source
|
Internal, Interface and External 2MHz clock or HDB3 signal
|
Pulse Mask Measurement
|
Comply with G.703
|
Jitter Measurement
|
Comply with O.172
|
Frequency measurement
|
Accuracy: ±1Hz
|
Offset Measurement
|
Accuracy: ±1ppm Range: -999ppm~+999ppm
|
VF Injection
|
Frequency: 200Hz~3400Hz, Step: 10Hz
|
Level: -60dBm~+3dBm
|
VF Measurement
|
Frequency: 200Hz~3400Hz, Accuracy: ±1Hz
|
Level range : -60.00dBm~+3.14dBm -60.00dBm~-21.00dBm, accuracy: ±2.87dBm -20.00dBm~+3.14dBm, accuracy: ±0.21dBm
|
Delay Measurement
|
Accuracy: ±1μs
|
Test Patterns
|
PRBS
|
223-1, 215-1, 211-1, 29-1
|
Fixed Code
|
1111, 0000, 1010
|
16-BIT
|
User Programmable Word
|
Alarm Indications
|
Signal Loss, AIS, Frame Loss, MFrame loss, Pattern Loss, Remote Alarm, Remote MF Alarm, Errors, Clock Slip, Low Battery
|
Error Injection
|
Type: BIT, FAS, CODE, CRC4, E-BIT
|
Single, Fixed Rate: 10-2, 10-3, 10-4, 10-5, 10-6, 10-7
|
Alarm injection
|
AIS, Frame Loss, CAS and CRC MFrame Loss, Remote Alarm, Remote MFrame Alarm
|
Performance Analysis
|
ITU-T G.821, G.826 and M.2100
|
Display
|
320x240 pixel backlit monochromatic LCD
|
Serial Port
|
USB Connector
|
Rechargeable Batteries
|
5×1.2V AA NiMH batteries, continuous working for 6 hours
|
Recharge Time
|
Approx. 2 hours
|
AC Power Adapter
|
Input: 100V~240VAC, 50/60Hz Output: 12VDC /1.5A
|
TestManagerPro
|
Operating System: WIN98/ME/2000/NT/XP
|
Dimensions
|
L×W×H: 266mm × 90/144mm × 60mm
|
Operating Temperature
|
0℃~50℃
|
Storage Temperature
|
-20℃~70℃
|
Humidity
|
5%~95% non-condensing
|
Weight
|
Approx. 800g
|
Configurations Standard configuration list of the E1 Transmission Analyzer:
Item |
Qua
|
Item
|
Qua
|
E1 Transmission Analyzer
|
1
|
TestManagerPro Setup CD
|
1
|
AC Power Adapter
|
1
|
AA NiMH Rechargeable Batteries (Built-in)
|
5
|
Automobile Cigarette Lighter Battery Adapter Cable
|
1
|
Waterproof Package
|
1
|
E1 75Ω Unbalanced Test Cable
|
2
|
Quality Certificate Card
|
1
|
E1 120Ω Balanced Test Cable
|
1
|
Maintenance Card
|
1
|
USB Communication Cable
|
1
|
Packing List
|
1
|
Users Manual
|
1
|
|
|
Optional configuration list of the E1 Transmission Analyzer:
Code |
Option Name
|
Acquired Way
|
Additional Accessories
|
Qua
|
Option1
|
Double E1 channels monitoring and E1 External Clock
|
Add-on Hardware and Authorized Software
|
Hardware Module
|
1
|
External Clock Access Cable
|
1
|
Double E1 Channels Monitoring Test Cable
|
2
|
Embedded Software and Function Control Code
|
1
|
Option2
|
Pulse Mask Measurement
|
Authorized Software
|
Embedded Software and Function Control Code
|
1
|
Option3
|
Jitter Measurement
|
Authorized Software
|
Embedded Software and Function Control Code
|
1
|
Option4
|
Level Measurement
|
Authorized Software
|
Embedded Software and Function Control Code
|
1
|

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