2M BERT Tester

Máy đo kiểm E1 - 2M Transmission Analyzer TLP-3C
The 2M Transmission Analyzer TLP-3C is a multi-functional and full- featured digital transmission system test device, designed for the installation test, engineering check and acceptance, daily maintenance of digital networks, mainly performing channel test, alarm analysis, fault finding and signalling analysis. In addition, this instrument further provides various protocol converters with one-way and bi-directional bit error test function. These capabilities make it ideal for field use.

Basic Functions
1)  2M testing
  • 75Ω and 120Ω interfaces
  • HDB3 and AMI line codes
  • Out-of-service 2Mb/s, N×64kb/s BER testing
  • In-service framed and unframed double-channel testing
  • Frame data control and monitoring
  • Timeslot activity monitoring, FAS, N-FAS, TS16MFO analysis
  • Built-in 64kb/s tone channel listen capability
  • CAS and CCS signaling generation and monitoring
  • Round trip delay measurement
  • APS delay measurement
  • Extensive error and alarm generation
  • VF tone generation and measurement
  • Level measurement
  • Pulse mask measurement
  • Frequency and offset measurement
  • Clock slip measurement
  • Up to ±999ppm transmit clock deviation
  • Clock source: Internal, Interface or External 2M clock/signal
  • Real-time transmit circuit open/short indication
2) Datacom testing
  • Datacom (V.24, V.35, V.36, X.21, RS-449, RS-485, EIA-530 and EIA-530A) interfaces BER Testing
  • ASYNC BER testing with baud rate 300b/s~38..4Kb/s
  • SYNC BER testing with data rate 300b/s~8Mb/s
  • DTE or DCE emulation
  • SYNC clock source and sense selection
  • Frequency measurement
  • Handshaking signals control and monitoring
3)  G.703 CO testing
  • G.703 CO 64kb/s BER testing
  • Octet timing control and monitoring
  • Frequency and offset measurement
  • Clock source: Internal, Interface selectable
4)  Other functions
  • Real-time clock
  • Test pattern: PRBS, Fixed Code and 16-BIT User Word
  • Error injection: Single and Fixed Rate
  • Manual and auto-timer measurement
  • ITU-T G.821, G.826, and M.2100 performance analysis

Main Features
  • Handheld design and easy-to-use
  • Full-featured measurements to 2M, Datacom
  • High resolution backlit large LCD screen, with adjustable contrast
  • Smart navigation mode and multi-languages displays
  • Extensive error and alarm generation, detection and indication
  • Histograms analysis of alarm and error events
  • Up to 99 days continuance test performance
  • Save/Recall of up to 7 user-defined setups and 435 sets of results
  • Up to 6 hours operation from a single battery charge
  • Built-in Li rechargeable battery and smart charger circuit
  • Can be charged with automobile cigarette lighter battery adapter
  • Upgradeable software via an integrated RS232C interface
  • Test results uploaded, conserved and printed by PCManager software





Internal Clock

2048kb/s ± 10ppm

Frequency Deviation


Line Interface

75Ω (Unbalanced), 120Ω (Balanced); High Input Impedance >2KW

Line Code



Unframed, PCM30, PCM30CRC, PCM31, PCM31CRC

Receive Sensitivity

> -43dB

Tx Clock Source

Internal, Interface and External 2MHz clock or signal

Pulse Mask

Comply with G.703

Jitter Measurement( optional)

Comply with O.172

Frequency Measurement

Accuracy: ±1Hz    

Offset Measurement

Accuracy: ±1ppm
Range: -999ppm
to +999ppm

 VF injection

Frequency: 200Hz to 3400Hz, Accuracy: ±10Hz


VF Measurement

Frequency: 200Hz to 3400Hz, Accuracy: ±1Hz

Level range :-60.00dBm to +3.14dBm,
to -21.00dBm, accuracy: ±2.87dBm
to +3.14dBm, accuracy: ±0.21dBm

Delay Measurement

Accuracy: ±1μs

G.703 CO


Line Rate

64kb/s ± 100ppm

Line Interface

120Ω, Balanced

Line Code



Line Interfaces

V.24, V.35, V.36, X.21, RS-449, RS-485, EIA-530, EIA-530A

Data Rate


300, 600bit/s, 1.2, 2.4, 4.8, 7.2, 9.6, 19.2, 38.4kb/s


300, 600bit/s, 1.2, 2.4, 4.8, 7.2, 9.6, 19.2, 38.4kb/s, N×64kb/s ( N=1- 32),4M,8Mkb/s

Test Patterns


223-1,220-1, 215-1, 211-1, 29-1,26-1

Fixed Code

1111, 0000, 1010


User Programmable Word

LED Alarm Indicators

Signal Loss, AIS, Frame Loss, MFrame Loss, Pattern Loss, Remote Alarm, Error, Clock Slip.

Error Injection


Single, Fixed Rate : 10-2, 10-3, 10-4, 10-5, 10-6, 10-7

Performance Analysis

ITU-T G.821, G.826 and M.2100


320x240 pixel backlit monochromatic LCD

Serial Port


Rechargeable Batteries

5*1.2V AA  NiMH batteries, continuous working for 6 hours

Recharge Time

Approx. 2 hours

AC Power Adapter

Input: 100V to 240V AC, 50/60Hz  Output: 12V DC/1.5A

 TestManager Pro



L×W×H  (200mm × 160mm × 45mm)

Operating Temperature

0-50 (Cels)

Storage Temperature

-20 -70 (Cels)


5%-95% non-condensing