ADSL Tester - GAO5855 E1 Service Tester - Description: This E1 service tester is a multi-functional digital transmission system test device, designed for the installation test, engineering check and acceptance, daily maintenance of the E1 PCM line (G.703 2Mbit/s), mainly performing channel test, alarm analysis, fault finding and signaling analysis of the E1 (2Mb/s) line. ADSL Tester - GAO5855 E1 Service Tester - Basic Functions: • Support interface test of unbalanced 75Ω and balanced 120Ω. • Support HDB3 and AMI line coding. • Framed test under TX/RX mode ( Out-of-service test ). √ Framed/unframed end-to-end 2Mb/s BER testing. √ N×64Kb/s BER testing. √ Can monitor signal loss , AIS, frame loss, remote alarm, remote multiframe alarm, CRC multiframe loss, CAS multiframe loss, pattern loss alarm and bit, CODE, FAS, E-BIT error and so on. √ Clock slip measurement. • Online BER monitoring and timeslot analysis under RX HI-Z (high impedance) and through (bridge) mode. √ Performance test of bit error, coding error, FAS error, CRC4 error and E bit error. √ FAS and MFAS word analysis, timeslot busy or idle status display. √ Timeslot content monitoring, monitoring and display of 8-bit digital code word in any selected timeslot. √ Any 64kb/s tone channel monitoring. √ CAS (channel associated signaling) ABCD code monitoring and CCS (common channel signaling) TS16 timeslot monitoring. • Framed/unframed Round Trip Delay measurement. • 2M or 64kb/s signal of SDH transmission network automatic protection switching (APS) delay measurement. • PCM simulation mode: √ Simulate PCM terminal to perform various error insertion and alarm insertion. √ Transmit editable Si, Sa, A, FAS, CRC-4, MFAS, NMFAS and E- bit. √ Insert idle codes into one or more timeslots, and the idle code pattern is programmable. √ Insert single audio signals whose signal frequency and voltage are adjustable in one or more timeslots. √ Monitor any voice channel in the receiving terminal, single audio channel can measure signal voltage and frequency at the same time. √ CAS (channel associated signaling) ABCD code programming, CCS (common channel signaling) TS16 content programmable; • 2M signal level, frequency, offset measurement. • Transmission clock maximum deviation ±999ppm, effectively assess the clock restoration capability of the tested circuit. • Transmission clock: internal, interface, external 2M clock/signal (optional). • Test code type pattern: pseudorandom binary sequence (PRBS), fixed code and 16BIT user programmable code. • Bit, rate and other types of error insertion modes. • Real time display open circuit and short circuit status of the transmission circuit, effectively identify cable fault. • Has automatic test function at fixed time. • Perform the error analysis according to the G.821, G.826 and M.2100 standard of ITU-T. • Use the TestManager software for measurement result analysis, clean up, archiving and print output on PC via the serial port. ADSL Tester - GAO5855 E1 Service Tester - Main Features: • Handheld structure, durable design, suitable for carrying around and on-spot measurements. • High resolution backlight LCD, smart navigation mode operation displays in English. • Combined BERT, time-slot analysis, signalling testing, signal analysis. • Synchronization performance measurements. • Up to 99 days continuance test performance. • High storage capacity, can store 4 groups of test results including settings and results information. • Built-in NiMH rechargeable batteries and built-in smart fast charger circuit. Can be charged with automobile cigarette lighter battery adapter. • Real-time clock and storage could be kept during a long time by power supply of the second spare battery without AC adapter and built-in NiMH battery module. • By using TestManager software, the embedded software of the instrument can be upgraded via the serial port. ADSL Tester -GAO5855 E1 Service Tester - Configuration List: Hardware Qua. Software Qua. GAO2120 E1 Service Tester 1 Embedded Software 1 AC Power Adapter 1 TestManager Setup CD 1 Automobile Cigarette Lighter Battery Adapter Cable 1 Others 75OHM Unbalanced Test Cable 2 Waterproof Package 1 120 OHM balanced Test Cable 1 User's Manual 1 RS232 Communication Cable 1 Maintenance Card 1 AA NiMH Rechargeable Batteries 5 Quality Certificate Card 1 Packing List 1 ADSL Tester -GAO5855 E1 Service Tester - Specifications: Item Description internal Clock 2048Kb/s ± 10ppm Tx Frequency deviation ±999ppm Rx Rate 2048Kb/s ± 999ppm Interfaces 75ohm, Unbalanced, 120ohm, balanced; High Input Impedance > 2K W Line Code HDB3,AMI Frame Structure Unframed , PCM30, PCM30CRC, PCM31, PCM31CRC Input Sensitivity 0~-43dB Rx Frequency offset Accuracy: ±1Hz, range: -999ppm ～ +999ppm Transmission clock source Generated from inside, interface extract, external 2M clock/ signal (optional) Insert Audio Signal Frequency range: 200Hz ～ 3400Hz Voltage range: -60.00dB ～ +3.14dB Single Audio Signal Test Receiving frequency range: 200Hz ～ 3400Hz Measurement frequency accuracy: ±1Hz Receiving voltage range: -60.00dB ～ +3.14dB Measurement voltage accuracy: -60.00dB ～ -21.00dB range: ±2.87dB -20.00dB ～ +3.14dB range: ±0.21dB If the product specification doesn't meet your requirement, please contact us or visit: http://www.gaotek.com/index.php?main_page=product_info&products_id=1032 About GAO TEK Inc. GAO Tek Inc. is a leading provider of test and measurement equipment, embedded development tools, telecommunication testers, electronic measurement instruments, video surveillance, alarm and other electronic products that serve the needs of electronic professionals internationally. For more information please visit http://www.GAOTek.com For any media queries: Director of Marketing, 416-292-0038 ext 812 sales@GAOTEK.com