Leading North America Supplier - 20 Years of Innovation - Shipping Globally


GAOTek Portable E1/Datacom Transmission Analyzer has a big color touch screen, providing a scalable, full-featured solution for testing 2 Mb/s, N×64 kb/s digital circuits, and data communications. It provides full-featured comprehensive analysis, measurement and evaluation of telecom networks. With multiple test interfaces, it can measure, analyze, and evaluate the transmission quality of different interfaces along the network. It is specially designed for R&D, production, installation, verification and maintenance of SDH, PDH, PCM, DTU and Data protocol converter equipment. The E1/ Datacom transmission tester also equipped with the special feature of extensive error and alarm generation, detection and indication.

Key Features

  • Easy to use, handheld design
  • Large color touch screen with high resolution
  • Full-featured comprehensive analysis, measurement and evaluation of telecom networks
  • Extensive error and alarm generation, detection and indication
  • Save/Recall of up to 10 user-defined configurations and 10 groups of results
  • Built-in Li-ion rechargeable batteries and AC power supply as well
  • Test results can be uploaded, conserved and printed using supplied software

Main Functions

E1 Testing

  • 120 Ω balanced and 75 Ω unbalanced line interfaces
  • HDB3 and AMI line codes
  • Out-of-service framed and unframed testing
    • 2 mb/s, 64 kb/s BER testing
    • Frame data and alarm monitoring
    • Clock slip measurement
  • In-service framed and unframed testing
    • Hi-Z and through mode testing
    • CODE, FAS, CRC4, E-BIT BER testing
    • Frame data and timeslot activity monitoring
    • Monitoring of octet code in any selected timeslot
    • Built-in 64 kb/s tone channel monitoring capability
    • ABCD code monitoring in CAS signaling
    • TS16 monitoring in CCS signaling
  • Double E1 channel testing
    • 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 Multi-frame, CCS timeslot 16 and timeslot activity monitoring
    • Double E1 channels timeslot data monitoring
    • Double E1 channels built-in 64 kb/s tone channel monitoring capability
    • Double E1 channels CAS and CCS signaling monitoring
  • Round trip delay measurement
  • APS delay measurement
  • Pulse Mask Measurement
    • Input E1 pulse shape display
    • Pulse width measurement
    • Pulse width and amplitude ratio measurement
    • Up-edge and down-edge time measurement
    • Overshoot and undershoot ratio measurement
    • Pulse amplitude and level measurement
  • PCM simulator
    • Extensive error insertion and alarm generation
    • Frame data control and monitoring
    • Idle word insertion in one or more time slots with programmable pattern
    • VF tone generation and measurement in one or more time slots
    • Listen to any voice channel in the receiver via earphone
    • Talk to any voice channel in the transmitter via microphone
    • Perform the tests of signal level and frequency of the VF channel simultaneously
    • CAS and CCS signaling generation and monitoring
  • Frequency and Offset measurements
  • Level measurement
  • Transmit clock deviation up to 999 ppm
  • Clock source: Internal, Interface and External 2 M clock/signal
  • Testing pattern: PRBS, Fixed Code, 16-BIT User-programmable word
  • Error insertion: Single and Fixed Rate
  • Real-time transmit circuit status indication: open/short
  • Manual or auto-timer measurements
  • Performance analysis according to G.821, G.826, and M.2100

Network Testing

  • Trace Route
  • IP Config

Other Functions

  • Auto-configuration:
    • E1 frame format, BERT pattern, the timeslots carried BERT pattern automatic detection and setting for E1 testing
    • BERT pattern and Tx data rate automatic detection and setting for Datacom testing
    • BERT pattern and octet timing automatic detection and setting for G.703 64 kb/s CO testing
  • Real-time clock
  • BERT pattern: PRBS, Fixed Code, 16-BIT User-programmable word and QBF
  • Error insertion: Single and Fixed Rate
  • Reset the results to zero and auto configure
  • Manual or auto-timer measurements
  • Self-check, keyboard and LED testing
  • Performance analysis according to ITU-T G.821, G.826 and M.2100
  • Histogram analysis of error and alarm events
  • Upgradeable software via USB interface

Optional Functions

  • Option 1: Jitter Testing
    • Peak-to-peak jitter measurement
    • Jitter measurement comply with O.172 filter
    • Hit seconds and hit free seconds counts
  • Option 2: Datacom Testing
    • Datacom (V.24, V.35, V.36, X.21, RS-449, RS-485, EIA-530 and EIA-530A) BER testing
    • Asynchronous BER testing at a baud rate range of 50 b/s to 57.6 b/s
    • Synchronous BER testing at a data rate of 1.2 kb/s to 2048 kb/s
    • DTE or DCE equipment emulation
    • Synchronous clock source selectable
    • Frequency measurement
    • Handshaking signals control and monitoring
  • Option 3: G.703 64 kb/s CO Testing
    • 703 64 kb/s Co-directional BER testing
    • Octet timing control and monitoring
    • Frequency and offset measurement
    • Transmit clock source: Internal and Interface
  • Option 4: Mux &Demux Testing
    • E1-Datacom synchronous 64 kb/s, N¡64 kb/s BER testing
    • E1-G.703 CO synchronous 64 kb/s BER testing
    • Frequency and Offset measurement of Rx interface
    • Handshaking signals monitoring of Datacom interface
    • E1 framed data and alarm monitoring
  • Option 5: Drop & Insert Testing
    • Insert mode: Insert synchronous 64 k, Nx64 kb/s data from Datacom or G.703 CO interface to one or more timeslots of E1 signal
    • Drop mode: Drop one or more timeslots data from E1 signal to Datacom or G.703 CO interface
    • Insert Drop mode: Insert and drop one or more E1 timeslots data from or to Datacom or G.703 CO interface

Technical Specifications

E1 Testing
Internal Clock 2048 kb/s 10 ppm
Line Interfaces 75 Ω (Unbalanced)
120 Ω (Balanced)
High Input Impedance>2 kΩ
Line Code HDB3, AMI
Frame Type Unframed, PCM30, PCM30CRC, PCM31, PCM31CRC
Tx Clock Source Internal, Interface and External 2 MHz clock or HDB3 signal
Pulse Mask Measurement Comply with ITU-T G.703 recommendations
Jitter Measurement Comply with ITU-T G.823, O.172 recommendations
G.703 64 kb/s CO Testing
Line Rate 64 kb/s ± 100 ppm
Line Interface 120 Ω, Balanced
Line Code AMI
Datacom Testing
Line Interfaces V.24, V.35, V.36, X.21, RS-449, RS-485, EIA-530, EIA-530A
Data Rate ASYNC: 50 b/s to 57.6 kb/s
SYNC: 1.2 kb/s to 38.4 kb/s, Nx64 kb/s (N=1 to 32)
Datacom Device Mode DTE, DCE
Ethernet Testing
Working Mode Full duplex, 10/100 M compatible
Error Insertion Type: BIT, FAS, CODE, CRC4, E-BIT
Mode: Single, OFF
Display 4.3 inch large size display with backlit color touch screen
Rechargeable Battery Li-ion battery, continuous working for 4 hours
Recharge Time Approx. 2 hours
Power Supply AC Adapter:
Input: 100 V to 240 V AC, 50/60 Hz
Output: 12 V DC /1.5 A
Battery: Li-Ion battery
Test Manager Pro Software Operating System: WIN98/ME/2000/NT/XP
Operating Temperature 0 °F to 122 °F
Storage Temperature -22 °F to 158 °F
Humidity 5 % to 95 % non-condensing
Dimensions 9.17 in × 4.33 in × 2.51 in (233 mm × 110 mm × 64 mm)
Weight Approx. 1.76 lb

Additional Information:

Packing List

E1/Datacom Transmission Analyzer 1 set
E1 75Ω Unbalanced Test Cable 2 pcs
E1 120Ω Balanced Test Cable 1 pc
USB Communication Cable 1 pc
Charger 1 pc
Li-ion Rechargeable Battery (Built-in) 1 pc
Test Manager Pro Setup CD 1 pc
User’s Manual 1 pc
Waterproof Package 1 pc
Quality Certificate Card 1 pc
Maintenance Card 1 pc
Packing List 1 pc
Option Cable
Datacom Adapter Cables 4 pcs
Datacom Interface Loop-back Connector 1 pc
G.703 CO Test Cable 1 pc

Additional Information

Weight 1.76 lbs

Questions from our customers

There are no questions yet. Be the first to ask a question about this product.

Only registered users are eligible to enter questions