GAO5855 E1 Service Tester

In Australia Phone: (03) 9023 0189

International Phone: +613 9023 0189

In Australia Fax: (03) 9700 0583

International Fax: +613 9700 0583

General Enquiry: info@telecomtest.com.au

Accounts: accounts@telecomtest.com.au

To contact us:

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. This instrument has following functions:

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

E1 Service Tester